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[ GLSA 200711-02 ] OpenSSH: Security bypass
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GLSA
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Joined: 12 May 2004
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PostPosted: Fri Nov 02, 2007 12:26 am    Post subject: [ GLSA 200711-02 ] OpenSSH: Security bypass Reply with quote

Gentoo Linux Security Advisory

Title: OpenSSH: Security bypass (GLSA 200711-02)
Severity: low
Exploitable: remote
Date: November 01, 2007
Bug(s): #191321
ID: 200711-02

Synopsis

A flaw has been discovered in OpenSSH which could allow a local attacker to bypass security restrictions.

Background

OpenSSH is a complete SSH protocol implementation that includes an SFTP client and server support.

Affected Packages

Package: net-misc/openssh
Vulnerable: < 4.7
Unaffected: >= 4.7
Architectures: All supported architectures


Description

Jan Pechanec discovered that OpenSSH uses a trusted X11 cookie when it cannot create an untrusted one.

Impact

An attacker could bypass the SSH client security policy and gain privileges by causing an X client to be treated as trusted.

Workaround

There is no known workaround at this time.

Resolution

All OpenSSH users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/openssh-4.7"


References

CVE-2007-4752


Last edited by GLSA on Fri Feb 22, 2008 4:20 am; edited 2 times in total
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