[UNIX] Mathopd Insecure Dump File Creation

• Previous message: SecuriTeam: "[NT] SurgeMail Webmail Multiple Vulnerabilities (Directory Traversal, Cross Site Scripting)"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]

To: list@securiteam.com
Date: 28 Mar 2005 10:22:46 +0200

The following security advisory is sent to the securiteam mailing list, and can be found at the SecuriTeam web site: http://www.securiteam.com
- - promotion

The SecuriTeam alerts list - Free, Accurate, Independent.

Get your security news from a reliable source.
http://www.securiteam.com/mailinglist.html

- - - - - - - - -

  Mathopd Insecure Dump File Creation
------------------------------------------------------------------------

SUMMARY

" <http://www.mathopd.org/> Mathopd is a very small, yet very fast HTTP
server for UN*X systems. Mathopd supports useful features of HTTP/1.1,
such as persistent connections, partial responses and pipelining. It does
not support things like content negotiation. The latest version of the
software (1.5) also supports CGI/1.1".

Recently discovered vulnerability in Mathopd, can be exploited by
malicious local users to corrupt the contents of arbitrary files on a
vulnerable system.

DETAILS

Vulnerable Systems:
 * Mathopd version 1.5p4
 * Mathopd version 1.6b5

Immune Systems:
 * Mathopd version 1.5p5
 * Mathopd version 1.6b6 Beta

The vulnerability is caused due to the "internal_dump()" function creating
dump files insecurely when a SIGWINCH signal is caught. This can be
exploited via symlink attacks to append dump data to arbitrary files on
the system with the privileges of the user running Mathopd.

Successful exploitation requires that Mathopd is running with the "-n"
command line option, and the user running Mathopd resizes the terminal
window.

ADDITIONAL INFORMATION

The information has been provided by <mailto:michiel@boland.org> Michiel
Boland.
The original article can be found at:
<http://www.mail-archive.com/mathopd%40mathopd.org/msg00272.html>
http://www.mail-archive.com/mathopd%40mathopd.org/msg00272.html

========================================

This bulletin is sent to members of the SecuriTeam mailing list.
To unsubscribe from the list, send mail with an empty subject line and body to: list-unsubscribe@securiteam.com
In order to subscribe to the mailing list, simply forward this email to: list-subscribe@securiteam.com

====================
====================

DISCLAIMER:
The information in this bulletin is provided "AS IS" without warranty of any kind.
In no event shall we be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages.

• Previous message: SecuriTeam: "[NT] SurgeMail Webmail Multiple Vulnerabilities (Directory Traversal, Cross Site Scripting)"
• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] [ attachment ]

Relevant Pages

• [UNIX] Mathopd Buffer Overflow (Long Path in Request)
  ... The following security advisory is sent to the securiteam mailing list, and can be
  found at the SecuriTeam web site: http://www.securiteam.com ... Mathopd supports useful
  features of HTTP/1.1, ... int retfill; ... void vwrite_log{ ... (Securiteam)
• [UNIX] MPlayer MMST and Real RTSP Multiple Heap Overflows
  ... The following security advisory is sent to the securiteam mailing list, and can be
  found at the SecuriTeam web site: http://www.securiteam.com ... The second vulnerability is due
  to a heap overflow ... which may be exploited via a malicious server to ...
  cause a denial of service and potentially compromise a vulnerable system. ... (Securiteam)
• [EXPL] FRB Remote Command Execution (Exploit)
  ... The following security advisory is sent to the securiteam mailing list, and can be
  found at the SecuriTeam web site: http://www.securiteam.com ... attackers to execute arbitrary
  code on the vulnerable system, ... print $sock "Host: $host\n"; ... (Securiteam)
• [NT] AVIRA Antivirus ACE Archive Handling Buffer Overflow
  ... The following security advisory is sent to the securiteam mailing list, and can be
  found at the SecuriTeam web site: http://www.securiteam.com ... compromise a vulnerable system.
  ... Successful exploitation allows arbitrary code execution, ... The vendor
  has issue the following statement: ... (Securiteam)
• [NT] HAURI Anti-Virus ALZ Archive Handling Buffer Overflow
  ... The following security advisory is sent to the securiteam mailing list, and can be
  found at the SecuriTeam web site: http://www.securiteam.com ... compromise a vulnerable system.
  ... * HAURI LiveCall ... ViRobot Expert 4.0 / ViRobot Advanced Server: ...
  (Securiteam)