[Debian-ha-maintainers] Bug#598549: Bug#598549: cluster-agents: CVE-2010-3389: insecure library loading

[Simon Horman]

Thanks, I will discuss getting this resolved with the upstream developers.

On Thu, Sep 30, 2010 at 12:36:56AM +0000, Raphael Geissert wrote:
> Package: cluster-agents
> Version: 1:1.0.3-3
> Severity: important
> Tags: security
> User: team at security.debian.org
> Usertags: ldpath
> 
> Hello,
> 
> During a review of the Debian archive, I've found your package to
> contain a script that can be abused by an attacker to execute arbitrary
> code.
> 
> The vulnerability is introduced by an insecure change to
> LD_LIBRARY_PATH, an environment variable used by ld.so(8) to look for
> libraries on a directory other than the standard paths.
> 
> Vulnerable code follows:
> 
> /usr/lib/ocf/resource.d/heartbeat/SAPDatabase line 969:
> if [ `echo $LD_LIBRARY_PATH | grep -c "^$DIR_EXECUTABLE\>"` -eq 0 ]; then
> /usr/lib/ocf/resource.d/heartbeat/SAPDatabase line 970:
>   LD_LIBRARY_PATH=$DIR_EXECUTABLE:$LD_LIBRARY_PATH; export LD_LIBRARY_PATH
> /usr/lib/ocf/resource.d/heartbeat/SAPInstance line 299:
>   if [ `echo $LD_LIBRARY_PATH | grep -c "^$DIR_EXECUTABLE\>"` -eq 0 ]; then
> /usr/lib/ocf/resource.d/heartbeat/SAPInstance line 300:
>     LD_LIBRARY_PATH=$DIR_EXECUTABLE:$LD_LIBRARY_PATH; export LD_LIBRARY_PATH
> 
> When there's an empty item on the colon-separated list of
> LD_LIBRARY_PATH, ld.so treats it as '.' (i.e. CWD/$PWD.)
> If the given script is executed from a directory where a potential,
> local, attacker can write files to, there's a chance to exploit this
> bug.
> 
> This vulnerability has been assigned the CVE id CVE-2010-3389. Please make sure
> you mention it when forwarding this report to upstream and when fixing
> this bug (everywhere: upstream and here at Debian.)
> 
> [0] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3389
> [1] http://security-tracker.debian.org/tracker/CVE-2010-3389
> 
> Sincerely,
> Raphael Geissert
> 
> 
> 
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