CVE-2024-24725
Published: 23 March 2024
Summary
CVE-2024-24725 is a high-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Gibbonedu Gibbon. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 0.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
Gibbon versions through 26.0.00 contain a PHP deserialization vulnerability (CWE-502) that permits remote authenticated users to supply attacker-controlled data in the columnOrder parameter of a POST request to modules/System Admin/import_run.php with type=externalAssessment and step=4. The flaw stems from unsafe handling of serialized input during external assessment imports, allowing object instantiation and method invocation without additional sanitization.
An authenticated attacker with low-privileged access can craft a malicious serialized payload to execute arbitrary PHP code, resulting in full confidentiality, integrity, and availability impact on the affected installation. The CVSS 3.1 score of 8.8 reflects network-accessible exploitation that requires no user interaction and yields complete system compromise.
Public references direct administrators to the Gibbon download page for updated releases that address the issue, while Exploit-DB entry 51903 demonstrates working proof-of-concept code for the deserialization vector.
The associated EPSS score has reached a peak of 0.8197 with a current value of 0.8112, indicating sustained exploitation interest following disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-22124
Vulnerability details
Gibbon through 26.0.00 allows remote authenticated users to conduct PHP deserialization attacks via columnOrder in a POST request to the modules/System%20Admin/import_run.php&type=externalAssessment&step=4 URI.
- 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.
Penetration testing supplies malicious serialized objects, detecting unsafe deserialization and supporting corrective actions.
Evaluation of untrusted data handling (deserialization testing) reveals unsafe processing, which the required remediation process addresses.
Untrusted serialized data can be deserialized and observed inside the chamber, blocking gadget-chain exploitation outside the sandbox.
Validates or rejects untrusted serialized data before deserialization occurs.
Identifies and blocks malicious code introduced through deserialization of untrusted data at system boundaries.
Integrity verification of serialized information can detect tampering before deserialization occurs.
Provenance of associated data allows detection of untrusted sources before deserialization or processing occurs.