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Re: Vixie cron vulnerability
From: Michal Zalewski <lcamtuf () COREDUMP CX>
Date: Tue, 8 May 2001 11:30:55 -0400

On Mon, 7 May 2001, Cade Cairns wrote:

Attached is a simple proof of concept for the vixie cron vulnerability
recently published in Debian Security Advisory DSA-054-1. The code was
written during SIA analysis of this vulnerability.

Hm, there is my original proof-of-concept I coded for Sebastian Krahmer
(who discovered this vulnerability), while working on it. This
vulnerability affects Debian, SuSE, and probably few other Linuxes as
well. It is a perfect example of bad coding, and how improper fixing of
bugs might lead to even more dangerous conditions. It is fully automated,
and I believe it gives absolutely nothing to the attacker, as this
vulnerability can be exploited by hand in approximately 5 seconds ;)

Michal Zalewski
http://lcamtuf.coredump.cx

Attachment: corntab
Description:


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