Code Injection in FreePBX

1) Code Injection

EUVDB-ID: #VU43620

Risk: Medium

CVSSv3.1: 6.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:F/RL:O/RC:C]

CVE-ID: CVE-2012-4869

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: Yes

Description

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

The callme_startcall function in recordings/misc/callme_page.php in FreePBX 2.9, 2.10, and earlier allows remote attackers to execute arbitrary commands via the callmenum parameter in a c action.

Mitigation

Install update from vendor's website.

Vulnerable software versions

FreePBX: 2.9

External links

http://packetstormsecurity.org/files/111028/FreePBX-2.10.0-Remote-Command-Execution-XSS.html
http://seclists.org/fulldisclosure/2012/Mar/234
http://secunia.com/advisories/48463
http://www.exploit-db.com/exploits/18649
http://www.exploit-db.com/exploits/18659
http://www.freepbx.org/trac/ticket/5711
http://www.securityfocus.com/bid/52630
http://exchange.xforce.ibmcloud.com/vulnerabilities/74174

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. However, a fully functional exploit for this vulnerability is available.