Vulnerability identifier: #VU81099

Vulnerability risk: High

CVSSv3.1: 9.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2023-34960

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Chamilo LMS
Client/Desktop applications / Other client software

Vendor: Chamilo

Description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation within SOAP API endpoint when processing PPT files in PPT2LP converter (wsConvertPpt component). A remote unauthenticated attacker can pass specially crafted filename to the application and execute arbitrary OS commands on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Chamilo LMS: 1.11.0 - 1.11.18

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External links
http://support.chamilo.org/projects/1/wiki/Security_issues#Issue-112-2023-04-20-Critical-impact-High-risk-Remote-Code-Execution
http://packetstormsecurity.com/files/174314/Chamilo-1.11.18-Command-Injection.html

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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.