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Message-Id: <201103080843.53492.sgrubb@redhat.com>
Date: Tue, 8 Mar 2011 08:43:53 -0500
From: Steve Grubb <sgrubb@...hat.com>
To: Tomas Hoger <thoger@...hat.com>
Cc: oss-security@...ts.openwall.com
Subject: Re: ldd can execute an app unexpectedly
On Tuesday, March 08, 2011 04:14:39 am Tomas Hoger wrote:
> > Besides telling everyone don't do that. ldd could take the PoV that
> > it should only call runtime linkers in trusted directories like /sbin
> > or /usr/sbin.
>
> Upstream does not seem to consider this to be an issue:
> https://bugzilla.redhat.com/show_bug.cgi?id=531160#c1
The DISA STIG now recommends that ldd be disabled, that pretty much means deleted, on
any Linux OS that is not patched to protect against it:
<Rule id="SV-28909r1_rule" severity="medium">
<version>GEN007960</version>
<title>The 'ldd' command must be disabled unless it protects against the
execution of untrusted files.</title>
http://iase.disa.mil/stigs/downloads/zip/unclassified_os-srg-unix_v1r1_finalsrg.zip
-Steve
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