OS Command Injection in rxvt-unicode

1) OS Command Injection

EUVDB-ID: #VU32534

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-3121

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

rxvt-unicode before 9.20 does not properly handle OSC escape sequences, which allows user-assisted remote attackers to manipulate arbitrary X window properties and execute arbitrary commands.

Mitigation

Install update from vendor's website.

Vulnerable software versions

rxvt-unicode: 9.0 - 9.19

External links

http://dist.schmorp.de/rxvt-unicode/Changes
http://lists.opensuse.org/opensuse-security-announce/2014-06/msg00026.html
http://lists.opensuse.org/opensuse-updates/2014-06/msg00038.html
http://seclists.org/oss-sec/2014/q2/204
http://www.debian.org/security/2014/dsa-2925
http://www.securityfocus.com/bid/67155
http://lists.fedoraproject.org/pipermail/package-announce/2014-May/133166.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-May/133195.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.