Remote buffer overflow in Webalizer

2002-04-15T00:00:00
ID SECURITYVULNS:DOC:2770
Type securityvulns
Reporter Securityvulns
Modified 2002-04-15T00:00:00

Description

Release : April 15 2002 Author : Spybreak (spybreak@host.sk) Software : Webalizer Version : 2.01-09, 2.01-06 URL : http://www.mrunix.net/webalizer/ Status : vendor contacted Problems : remote buffer overflow

--- INTRO ---

The Webalizer is a web server log file analysis program which produces usage statistics in HTML format for viewing with a browser. The results are presented in both columnar and graphical format, which facilitates interpretation.

Webalizer 2.01-06 is a part of the Red Hat Linux 7.2 distribution, enabled by default and run daily by the cron daemon.

--- PROBLEM ---

The webalizer has the ability to perform reverse DNS lookups. This ability is disabled by default, but if enabled, an attacker with command over his own DNS service, has the ability to gain remote root acces to a machine, due to a remote buffer overflow in the reverse resolving code.

Public key: http://spybreak.host.sk