Date: Mon, 16 Nov 2009 22:51:16 +0100 From: Tomas Hoger <thoger@...hat.com> To: oss-security@...ts.openwall.com Cc: jt@....org Subject: Re: CVE request: oping allows the disclosure of arbitrary file contents On Thu, 15 Oct 2009 15:15:57 +0200 Julien Tinnes <jt@....org> wrote: > in case anyone cares, oping also attempts to drop privileges with > setuid(getuid()); without checking setuid()'s return value. > > It's an obvious vulnerability, because a local attacker can make > setuid() fail by setting a resource limit of 0 for RLIMIT_NPROC with > setrlimit(). Does the RLIMIT_NPROC trick work against oping, or any setuid app that calls setuid(getuid())? -- Tomas Hoger / Red Hat Security Response Team
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