GLSA Bodhisattva
Joined: 13 Jun 2003 Posts: 4087 Location: Dresden, Germany
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Posted: Wed Oct 27, 2004 5:23 pm Post subject: [ GLSA 200410-28 ] rssh: Format string vulnerability |
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Gentoo Linux Security Advisory
Title: rssh: Format string vulnerability (GLSA 200410-28)
Severity: high
Exploitable: remote
Date: October 27, 2004
Updated: May 22, 2006
Bug(s): #66988
ID: 200410-28
Synopsis
rssh is vulnerable to a format string vulnerability that allows arbitrary execution of code with the rights of the connected user, thereby bypassing rssh restrictions.
Background
rssh is a restricted shell, allowing only a few commands like scp or sftp. It is often used as a complement to OpenSSH to provide limited access to users.
Affected Packages
Package: app-shells/rssh
Vulnerable: < 2.2.2
Unaffected: >= 2.2.2
Architectures: All supported architectures
Description
Florian Schilhabel from the Gentoo Linux Security Audit Team found a format string vulnerability in rssh syslogging of failed commands.
Impact
Using a malicious command, it may be possible for a remote authenticated user to execute arbitrary code on the target machine with user rights, effectively bypassing any restriction of rssh.
Workaround
There is no known workaround at this time.
Resolution
All rssh users should upgrade to the latest version: Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=app-shells/rssh-2.2.2" |
References
rssh security announcement
CVE-2004-1628
Last edited by GLSA on Sat Aug 23, 2008 4:17 am; edited 4 times in total |
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