Input validation error in Cobbler

1) Input validation error

EUVDB-ID: #VU43981

Risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-2395

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Incomplete blacklist vulnerability in action_power.py in Cobbler 2.2.0 allows remote attackers to execute arbitrary commands via shell metacharacters in the (1) username or (2) password fields to the power_system method in the xmlrpc API.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cobbler: 2.2.0

External links

http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00016.html
http://lists.opensuse.org/opensuse-security-announce/2012-07/msg00000.html
http://www.openwall.com/lists/oss-security/2012/05/23/18
http://www.openwall.com/lists/oss-security/2012/05/23/4
http://www.osvdb.org/82458
http://www.securityfocus.com/bid/53666
http://bugs.launchpad.net/ubuntu/+source/cobbler/+bug/978999
http://github.com/cobbler/cobbler/commit/6d9167e5da44eca56bdf42b5776097a6779aaadf
http://github.com/cobbler/cobbler/issues/141

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.