Date: Fri, 4 Nov 2016 17:59:59 +0100 From: Nicolas Braud-Santoni <nicolas@...ud-santoni.eu> To: oss-security@...ts.openwall.com Cc: security@...ian.org, ross@...listi.us Subject: CVE request: Escape Sequence Command Execution vulnerability in Terminology 0.7 Hi, Terminology 0.7.0 suffers from a bug similar to CVE-2003-0063, where an attacker able to print character escape sequences can modify the window title and then insert it back in the terminal's input buffer, resulting in arbitrary terminal input, including code execution as a local user. A concrete attack scenario can work as follows: the attacker gets a string triggering the vulnerability into a log file (or any other thing that eventually gets displayed to the user). When it is, at some later point, displayed to the user, "echo 'evil'\n" gets written to the user's terminal's input buffer, resulting in that command being executed by the user's shell. For example: > printf "\e]2;echo 'evil'\n\a\e]2;?\a" The issue was fixed in Terminology by commit b80bedc7c21ecffe99d8d142930db696eebdd6a5 : https://git.enlightenment.org/apps/terminology.git/commit/?id=b80bedc7c21ecffe99d8d142930db696eebdd6a5 I would like to apply for a CVE number for this issue, on behalf of the Debian security team. Best regards, Nicolas Braud-Santoni Download attachment "signature.asc" of type "application/pgp-signature" (802 bytes)
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