CVE Vulnerabilities

CVE-2020-8884

Deserialization of Untrusted Data

Published: Jan 06, 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
9 HIGH
AV:N/AC:L/Au:S/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

rcdsvc in the Proofpoint Insider Threat Management Windows Agent (formerly ObserveIT Windows Agent) before 7.9 allows remote authenticated users to execute arbitrary code as SYSTEM because of improper deserialization over named pipes.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Insider_threat_management Proofpoint 6.3 (including) 7.4.2 (excluding)
Insider_threat_management Proofpoint 7.5.0 (including) 7.5.3 (excluding)
Insider_threat_management Proofpoint 7.6.0 (including) 7.6.4 (excluding)
Insider_threat_management Proofpoint 7.7.0 (including) 7.7.4 (excluding)
Insider_threat_management Proofpoint 7.8.0 (including) 7.8.3 (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