CVE-2023-3368
Published: 28 November 2023
Summary
CVE-2023-3368 is a critical-severity OS Command Injection (CWE-78) vulnerability in Chamilo Chamilo. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 0.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
Chamilo LMS versions up to and including 1.11.20 contain a command injection vulnerability in the file /main/webservices/additional_webservices.php. The flaw stems from improper neutralization of special characters and is tracked as CWE-78 with a CVSS 3.1 score of 9.8. It permits unauthenticated remote code execution and is explicitly described as a bypass of the earlier CVE-2023-34960.
An attacker with no credentials can send crafted requests over the network to the affected endpoint, resulting in arbitrary command execution on the server with full impact to confidentiality, integrity, and availability.
Public references include multiple commits in the Chamilo LMS repository that implement the fix, along with detailed advisories from Star Labs and the Chamilo support wiki that outline the issue and remediation steps for administrators. The associated EPSS score has reached a peak of 0.9377 with a current value of 0.8895.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-44035
Vulnerability details
Command injection in `/main/webservices/additional_webservices.php` in Chamilo LMS <= v1.11.20 allows unauthenticated attackers to obtain remote code execution via improper neutralisation of special characters. This is a bypass of CVE-2023-34960.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.