CVE-2024-43464
Published: 10 September 2024
Summary
CVE-2024-43464 is a high-severity Deserialization of Untrusted Data (CWE-502) vulnerability in Microsoft Sharepoint Server. Its CVSS base score is 7.2 (High).
Operationally, ranked in the top 1.6% 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-2024-43464. The flaw carries a CVSS 3.1 score of 7.2 and is associated with CWE-502, indicating an issue with deserialization of untrusted data that affects the server component when handling network requests.
An attacker with high privileges can exploit the vulnerability remotely over the network under low attack complexity and without user interaction. Successful exploitation grants the ability to execute arbitrary code, resulting in complete loss of confidentiality, integrity, and availability on the affected SharePoint Server.
The official Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43464 details available patches and mitigation steps for the affected SharePoint Server versions. The EPSS score has reached a peak of 0.7184 with a current value of 0.6389, indicating sustained exploitation interest following disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-40733
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.