[UNIX] CVSTrac filediff Command Execution

From: SecuriTeam (support_at_securiteam.com)
Date: 08/10/04

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Date: 10 Aug 2004 17:58:44 +0200

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      CVSTrac filediff Command Execution
    ------------------------------------------------------------------------

    SUMMARY

     <http://www.cvstrac.org/> CVStrac has been found to contain a
    vulnerability that allows a remote attacker to execute arbitrary commands.
    The vulnerability occurs because filediff does not properly filter out
    incoming user input.

    DETAILS

    Vulnerable Systems:
     * CVSTrac version 1.1.3

    Immune Systems:
     * CVSTrac version 1.1.4 or newer

    Sample exploit
    By issuing the following request, it is possible to test the vulnerability
    on your installation of CVSTrac:
    filediff?f=CVSROOT/rcsinfo&v1=1.1&v2=1.2;w;

    ADDITIONAL INFORMATION

    The information has been provided by <mailto:rtngo@yahoo.com> Richard
    Ngo.

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