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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200502-28] PuTTY: Remote code execution

Vulnerability Assessment Details

[GLSA-200502-28] PuTTY: Remote code execution

Vulnerability Assessment Summary
PuTTY: Remote code execution

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200502-28
(PuTTY: Remote code execution)

Two vulnerabilities have been discovered in the PSCP and PSFTP
clients, which can be triggered by the SFTP server itself. These issues
are caused by the improper handling of the FXP_READDIR response, along
with other string fields.

Impact

A possible hacker can setup a malicious SFTP server that would send
these malformed responses to a client, potentially permiting the
execution of arbitrary code on their system.

Workaround

There is no known workaround at this time.

References:
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-sftp-readdir.html
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/vuln-sftp-string.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-0467
http://www.idefense.com/application/poi/display?id=201&type=vulnerabilities

Solution:
All PuTTY users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/putty-0.57"

Network Security Threat Level: Medium

Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

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