CVE Vulnerabilities

CVE-2021-38241

Deserialization of Untrusted Data

Published: Dec 16, 2022 | Modified: Apr 21, 2025
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

Deserialization issue discovered in Ruoyi before 4.6.1 allows remote attackers to run arbitrary code via weak cipher in Shiro framework.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Ruoyi Ruoyi * 4.6.1 (excluding)

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