National Vulnerability Database

National Vulnerability Database

National Vulnerability

CVE-2007-4752 Detail


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.

Source:  MITRE      Last Modified:  09/11/2007

Quick Info

CVE Dictionary Entry:
Original release date:
Last revised:


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:
Exploitability Subscore:
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Not required to exploit
Impact Type:
Provides user account access, Allows partial confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; 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:

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name External Source CONFIRM External Source CONFIRM External Source HP HPSBUX02287 External Source APPLE APPLE-SA-2008-03-18 External Source SUSE SUSE-SR:2007:022 External Source GENTOO GLSA-200711-02 External Source SREASON 3126 External Source CONFIRM External Source DEBIAN DSA-1576 External Source MANDRIVA MDKSA-2007:236 External Source CONFIRM External Source REDHAT RHSA-2008:0855 External Source BUGTRAQ 20070917 FLEA-2007-0055-1 openssh openssh-client openssh-server gnome-ssh-askpass External Source BUGTRAQ 20071115 Re: HPSBUX02287 SSRT071485 rev.1 - HP-UX Running HP Secure Shell, Remotely Gain Extended Privileges External Source BID 25628 External Source UBUNTU USN-566-1 External Source VUPEN ADV-2007-3156 External Source VUPEN ADV-2008-0924 External Source VUPEN ADV-2008-2821 External Source MISC External Source XF openssh-x11cookie-privilege-escalation(36637) Patch External Source CONFIRM External Source OVAL oval:org.mitre.oval:def:10809 External Source OVAL oval:org.mitre.oval:def:5599 External Source FEDORA FEDORA-2007-715

References to Check Content

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Technical Details

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Change History 3 change records found - show changes