Date: Thu, 11 Aug 2011 08:20:41 +0300 From: Eren Türkay <eren@...dus.org.tr> To: oss-security@...ts.openwall.com Cc: Ralf Baechle <ralf@...ux-mips.org>, Thomas Osterried <ax25@...erg.in-berlin.de> Subject: Re: CVE request (and disclosure): ax25d missing setuid return code check On Tue, Aug 09, 2011 at 11:33:04PM -0400, Dan Rosenberg wrote: > The AX.25 daemon (ax25d), typically provided in the ax25-tools > package, allows administrators to associate incoming AX.25, NET/ROM, > and ROSE traffic with the execution of an endpoint program (most > commonly "node"), which is run under a specified user account. > Because ax25d is missing a check on the return code for a setuid call > responsible for dropping privileges to the specified user, it may be > possible to cause setuid to fail, after which the chosen program will > be executed with root privileges. In other words, if you're in the > business of handing out unprivileged shells over amateur radio (don't > we all? :p ), this would allow for remote compromise. Hello, Thank you for your investigation on the topic. Although this issue seems to be low-priority, it's good to let the maintainers know. I'm CCing Ralf Baechle, and Thomas Osterried who, accordingly to linux-ac25 site, are the maintainers of ax25 utilities. > > -Dan -- . 73! DE TA1AET Content of type "application/pgp-signature" skipped
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