Arbitrary PHP code execution in Drupal Drupal

1) Arbitrary PHP code execution

EUVDB-ID: #VU465

Risk: Low

CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2012-5653

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote user to cause arbitrary code execution on the target system.
The weakness exists due to improper munging of uploaded files name. The vulnerability allows attacker with server permission to upload a specially named file that can bypass the filename munging and cause arbitrary code execution.
Successful exploitation of the weakness results in arbitrary code execution on the vulnerable system.

Mitigation

Update 6.x to 6.27.
https://www.drupal.org/drupal-6.27-release-notes
Update 7.x to 7.18.
https://www.drupal.org/drupal-7.18-release-notes

Vulnerable software versions

Drupal: 6.0 - 7.17

External links

http://www.drupal.org/SA-CORE-2012-004

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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