oss-security - request CVE id: insecure handling of DISPLAY in rxvt

Openwall Project		/home Owl JtR Pro crypt pam_passwdqc tcb phpass scanlogd popa3d msulogin / Linux BIND / advisories presentations / services donations / wordlists passwords / community lists wiki CVSweb mirrors signatures
bringing security into open environments

Order Openwall GNU/*/Linux 2.0 on a CD with delivery worldwide

[<prev] [next>] [thread-next>] [month] [year] [list]

Date: Tue, 4 Mar 2008 16:10:02 +0100
From: Nico Golde <oss-security+ml@...lde.de>
To: oss-security@...ts.openwall.com
Subject: request CVE id: insecure handling of DISPLAY in rxvt

Hi all,
Steve, can I get a CVE id for the following issue in rxvt?

"If the DISPLAY environment is not set, rxvt opens an xterm 
on :0, which on some headless login-server means anyone can setup 
an fake X server waiting for someone loggin in without X 
forwarding to start rxvt by some mistake or by some program (thus 
without even noticing) and getting full shell access to that other 
account."

This is Debian bug 469296[0].

It should be a good idea to check other terminal emulators 
as well.

[0] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=469296

Cheers
Nico

-- 
Nico Golde - http://www.ngolde.de - nion@...ber.ccc.de - GPG: 0x73647CFF
For security reasons, all text in this mail is double-rot13 encrypted.

[ CONTENT OF TYPE application/pgp-signature SKIPPED ]

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.