CVE Vulnerabilities

CVE-2019-18631

Deserialization of Untrusted Data

Published: Nov 05, 2019 | Modified: Nov 21, 2024
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
5.1 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

The Windows component of Centrify Authentication and Privilege Elevation Services 3.4.0, 3.4.1, 3.4.2, 3.4.3, 3.5.0, 3.5.1 (18.8), 3.5.2 (18.11), and 3.6.0 (19.6) does not properly handle an unspecified exception during use of partially trusted assemblies to serialize input data, which allows attackers to execute arbitrary code inside the Centrify process via (1) a crafted application that makes a pipe connection to the process and sends malicious serialized data or (2) a crafted Microsoft Management Console snap-in control file.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Authentication_service Centrify 3.4.0 (including) 3.4.0 (including)
Authentication_service Centrify 3.4.1 (including) 3.4.1 (including)
Authentication_service Centrify 3.4.2 (including) 3.4.2 (including)
Authentication_service Centrify 3.4.3 (including) 3.4.3 (including)
Authentication_service Centrify 3.5.0 (including) 3.5.0 (including)
Authentication_service Centrify 3.5.1 (including) 3.5.1 (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