Date: Sat, 30 Apr 2011 19:56:42 -0400 From: William Cohen <wcohen@...hat.com> To: oss-security <oss-security@...ts.openwall.com> CC: Jan Lieskovsky <jlieskov@...hat.com>, "Steven M. Christey" <coley@...us.mitre.org>, Stephane Chauveau <stephane.chauveau@...s-entreprise.com>, Maynard Johnson <maynardj@...ibm.com>, Robert Richter <robert.richter@....com> Subject: Re: CVE Request -- oprofile -- Local privilege escalation via crafted opcontrol event parameter when authorized by sudo On 04/29/2011 02:16 PM, Jan Lieskovsky wrote: > > Hello Josh, Steve, vendors, > > It was found that oprofile profiling system did not properly sanitize > the content of event argument, provided to oprofile profiling control > utility (opcontrol). If a local unprivileged user was authorized by > sudoers file to run the opcontrol utility, they could use the flaw > to escalate their privileges (execute arbitrary code with the privileges > of the privileged system user, root). Different vulnerability than > CVE-2006-0576. > > References: >  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=624212 >  https://bugzilla.redhat.com/show_bug.cgi?id=700883 > > Could you allocate a CVE id for this? > > Thank you & Regards, Jan. > -- > Jan iankko Lieskovsky / Red Hat Security Response Team > > P.S.: Oprofile is not encouraged to be run under sudo, but still > should not allow escalation of privileges. Hi, I did a bisection on oprofile git and found the set_event function in opcontrol in: http://oprofile.git.sourceforge.net/git/gitweb.cgi?p=oprofile/oprofile;a=commit;h=6b60be5e370aa8d58bd4fbbc39abd51c90509a31 The email thread associated with that patch: http://marc.info/?l=oprofile-list&m=112293360728638&w=2 Appears that the eval is being used to simulate arrays: http://marc.info/?l=oprofile-list&m=112297339521850&w=2 -Will
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