A vulnerability exists in the history command of Concurrent Versions System (CVS). If exploited, this vulnerability could disclose sensitive information about files and directories on an affected system to a remote, authenticated CVS user.
Concurrent Versions System (CVS) is a source code maintenance system that is widely used by open-source software development projects. It provides a history command that displays reports on cvs commands that have been executed on files or directories in the source repository. The history command supports a -X command line switch, which is designed to allow a user to specify the name of the history file to be used. This command line switch contains an information disclosure vulnerability. When specifying a directory or filename to the -X command line switch, the error message that is returned could allow an attacker to determine the existence and accessibility of arbitrary files or directories on an affected system.
A remote, authenticated CVS user could determine if arbitrary files or directories exist on an affected system and whether the CVS daemon has privileges to access them.
Apply a patch or upgrade
Note that some of these workarounds will only limit the scope and impact of possible attacks.
This vulnerability was reported by iDefense.
This document was written by Damon Morda.
|Date First Published:||2004-08-17|
|Date Last Updated:||2004-08-19 19:53 UTC|