CVE-2024-38018
Published: 10 September 2024
Summary
CVE-2024-38018 is a high-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Microsoft Sharepoint Server. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 2.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Microsoft SharePoint Server contains a remote code execution vulnerability tracked as CVE-2024-38018 and published on 2024-09-10. The flaw carries a CVSS 3.1 score of 8.8 and is linked to CWE-502, reflecting a deserialization weakness that permits unauthenticated code paths to be reached from a network context.
An authenticated attacker with low privileges can exploit the issue over the network with low attack complexity and no user interaction, resulting in full compromise of confidentiality, integrity, and availability on the affected SharePoint instance.
Microsoft’s Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-38018 supplies the official remediation details and patch information. The associated EPSS score has reached a peak of 0.5867 against a current value of 0.5029.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-37372
Vulnerability details
Microsoft SharePoint Server Remote Code Execution Vulnerability
- 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.