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Vulnerability Details : CVE-2007-4752

ssh in OpenSSH before 4.7 does not properly handle when an untrusted cookie cannot be created and uses a trusted X11 cookie instead, which allows attackers to violate intended policy and gain privileges by causing an X client to be treated as trusted.
Publish Date : 2007-09-11 Last Update Date : 2014-08-08
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access User
Vulnerability Type(s) Gain privileges

- Vendor Statements

This issue did not affect the OpenSSH packages as distributed with Red Hat Enterprise Linux 2.1 or 3, as they do not support Trusted X11 forwarding. For Red Hat Enterprise Linux 4 and 5, this issue was addressed via:
Source: Redhat

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat low 2007-09-06 2007-09-04
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2007-4752 unix
DSA-1576 openssh -- predictable random number generator oval:org.mitre.oval:def:7978 unix
DSA-1576-1 openssh openssh-blacklist - predictable randomness oval:org.mitre.oval:def:18593 unix
ELSA-2008:0855: openssh security update (Critical) oval:org.mitre.oval:def:21987 unix
HP-UX Running HP Secure Shell, Remotely Gain Extended Privileges oval:org.mitre.oval:def:5599 unix
RHSA-2008:0855 -- openssh security update (Critical) oval:org.mitre.oval:def:29192 unix
RHSA-2008:0855: openssh security update (Critical) oval:com.redhat.rhsa:def:20080855 unix
ssh in OpenSSH before 4.7 does not properly handle when an untrusted cookie cannot be created and uses a trusted X11 coo... oval:org.mitre.oval:def:10809 unix
USN-566-1 -- openssh vulnerability oval:org.mitre.oval:def:17500 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2007-4752

# Product Type Vendor Product Version Update Edition Language
1 Application Openbsd Openssh 4.0p1 Version Details Vulnerabilities
2 Application Openbsd Openssh 4.0 Version Details Vulnerabilities
3 Application Openbsd Openssh 4.1p1 Version Details Vulnerabilities
4 Application Openbsd Openssh 4.1 Version Details Vulnerabilities
5 Application Openbsd Openssh 4.2 Version Details Vulnerabilities
6 Application Openbsd Openssh 4.2p1 Version Details Vulnerabilities
7 Application Openbsd Openssh 4.3 Version Details Vulnerabilities
8 Application Openbsd Openssh 4.3p2 Version Details Vulnerabilities
9 Application Openbsd Openssh 4.3p1 Version Details Vulnerabilities
10 Application Openbsd Openssh 4.4p1 Version Details Vulnerabilities
11 Application Openbsd Openssh 4.4 Version Details Vulnerabilities
12 Application Openbsd Openssh 4.5 Version Details Vulnerabilities
13 Application Openbsd Openssh 4.6 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Openbsd Openssh 13

- References For CVE-2007-4752
APPLE APPLE-SA-2008-03-18
GENTOO GLSA-200711-02
VUPEN ADV-2007-3156
BID 25628 OpenSSH X11 Cookie Local Authentication Bypass Vulnerability Release Date:2008-10-14
BUGTRAQ 20071115 Re: HPSBUX02287 SSRT071485 rev.1 - HP-UX Running HP Secure Shell, Remotely Gain Extended Privileges
BUGTRAQ 20070917 FLEA-2007-0055-1 openssh openssh-client openssh-server gnome-ssh-askpass
VUPEN ADV-2008-0924
VUPEN ADV-2008-2821
XF openssh-x11cookie-privilege-escalation(36637) CONFIRM

- Metasploit Modules Related To CVE-2007-4752

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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