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GLSA 200501-24: tnftp: Arbitrary file overwriting
Posted by Philipp Esselbach on: 01/14/2005 04:17 AM [ Print | 0 comment(s) ]
A tnftp security update is available for Gentoo Linux
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Gentoo Linux Security Advisory GLSA 200501-24
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http://security.gentoo.org/
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Severity: Normal
Title: tnftp: Arbitrary file overwriting
Date: January 14, 2005
Bugs: #74704
ID: 200501-24
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Synopsis
=======
tnftp fails to validate filenames when downloading files, making it vulnerable to arbitrary file overwriting.
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Gentoo Linux Security Advisory GLSA 200501-24
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http://security.gentoo.org/
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Severity: Normal
Title: tnftp: Arbitrary file overwriting
Date: January 14, 2005
Bugs: #74704
ID: 200501-24
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Synopsis
=======
tnftp fails to validate filenames when downloading files, making it vulnerable to arbitrary file overwriting.
Background
=========
tnftp is a NetBSD FTP client with several advanced features.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-ftp/tnftp < 20050103 >= 20050103
Description
==========
The 'mget' function in cmds.c lacks validation of the filenames that are supplied by the server.
Impact
=====
An attacker running an FTP server could supply clients with malicious filenames, potentially allowing the overwriting of arbitrary files with the permission of the connected user.
Workaround
=========
There is no known workaround at this time.
Resolution
=========
All tnftp users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-ftp/tnftp-20050103"
References
=========
[ 1 ] CAN-2004-1294
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1294
[ 2 ] Original Advisory
http://tigger.uic.edu/~jlongs2/holes/tnftp.txt
Availability
===========
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200501-24.xml
Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.
License
======
Copyright 2005 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.0
=========
tnftp is a NetBSD FTP client with several advanced features.
Affected packages
================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 net-ftp/tnftp < 20050103 >= 20050103
Description
==========
The 'mget' function in cmds.c lacks validation of the filenames that are supplied by the server.
Impact
=====
An attacker running an FTP server could supply clients with malicious filenames, potentially allowing the overwriting of arbitrary files with the permission of the connected user.
Workaround
=========
There is no known workaround at this time.
Resolution
=========
All tnftp users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-ftp/tnftp-20050103"
References
=========
[ 1 ] CAN-2004-1294
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-1294
[ 2 ] Original Advisory
http://tigger.uic.edu/~jlongs2/holes/tnftp.txt
Availability
===========
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200501-24.xml
Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at http://bugs.gentoo.org.
License
======
Copyright 2005 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.0
