Vulnerabilities
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CVE Vulnerabilities

CVE-2021-24066

Deserialization of Untrusted Data

Published: Feb 25, 2021 | Modified: Nov 21, 2024
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6.5 MEDIUM
AV:N/AC:L/Au:S/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
Vulnerability-free packages from our partners
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-24066
CWEhttps://cwe.mitre.org/data/definitions/502.html

Microsoft SharePoint Remote Code Execution Vulnerability

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Name Vendor Start Version End Version
Sharepoint_enterprise_server Microsoft 2016 (including) 2016 (including)
Sharepoint_foundation Microsoft 2010-sp2 (including) 2010-sp2 (including)
Sharepoint_foundation Microsoft 2013-sp1 (including) 2013-sp1 (including)
Sharepoint_server Microsoft 2019 (including) 2019 (including)

Potential Mitigations

  • Make fields transient to protect them from deserialization.
  • An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

References

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