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Last updated: 11/1/2014 7:46:56 AM

CVE Publication rate: 45.6

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Vulnerability Workload Index: 13.61
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National Cyber Awareness System

Vulnerability Summary for CVE-2007-4752

Original release date: 09/11/2007
Last revised: 08/08/2014
Source: US-CERT/NIST

Overview

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.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.5 (HIGH) (AV:N/AC:L/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (08/28/2008)
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: https://rhn.redhat.com/errata/RHSA-2008-0855.html

References to Advisories, Solutions, and Tools

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External Source: VUPEN
Name: ADV-2008-2821
External Source: SECUNIA
Name: 29420
External Source: VUPEN
Name: ADV-2007-3156
External Source: FEDORA
Name: FEDORA-2007-715
External Source: DEBIAN
Name: DSA-1576
External Source: GENTOO
Name: GLSA-200711-02
External Source: SREASON
Name: 3126
External Source: HP
Name: SSRT071485
External Source: BID
Name: 25628
External Source: APPLE
Name: APPLE-SA-2008-03-18
External Source: SECUNIA
Name: 30249
External Source: HP
Name: HPSBUX02287
External Source: MANDRIVA
Name: MDKSA-2007:236
External Source: XF
Name: openssh-x11cookie-privilege-escalation(36637)
External Source: CONFIRM
Name: https://issues.rpath.com/browse/RPL-1706
Type: Patch Information
External Source: OVAL
Name: oval:org.mitre.oval:def:10809
External Source: BUGTRAQ
Name: 20070917 FLEA-2007-0055-1 openssh openssh-client openssh-server gnome-ssh-askpass
External Source: UBUNTU
Name: USN-566-1
External Source: REDHAT
Name: RHSA-2008:0855
External Source: SUSE
Name: SUSE-SR:2007:022
External Source: CONFIRM
Name: http://support.avaya.com/elmodocs2/security/ASA-2008-399.htm
External Source: MISC
Name: https://bugzilla.redhat.com/show_bug.cgi?id=280471
External Source: VUPEN
Name: ADV-2008-0924
External Source: BUGTRAQ
Name: 20071115 Re: HPSBUX02287 SSRT071485 rev.1 - HP-UX Running HP Secure Shell, Remotely Gain Extended Privileges
External Source: CONFIRM
Name: http://www.openssh.com/txt/release-4.7
External Source: OVAL
Name: oval:org.mitre.oval:def:5599
External Source: SECUNIA
Name: 32241
External Source: SECUNIA
Name: 27399
External Source: CONFIRM
Name: http://docs.info.apple.com/article.html?artnum=307562
External Source: CONFIRM
Name: http://bugs.gentoo.org/show_bug.cgi?id=191321
External Source: SECUNIA
Name: 31575

References to Check Content

Identifier: oval:org.mitre.oval:def:10809
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5
Identifier: oval:org.mitre.oval:def:5599
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Technical Details

Vulnerability Type (View All)