CVE Vulnerabilities

CVE-2023-47174

Deserialization of Untrusted Data

Published: Oct 31, 2023 | Modified: Nov 21, 2024
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

Thorn SFTP gateway 3.4.x before 3.4.4 uses Pivotal Spring Framework for Java deserialization of untrusted data, which is not supported by Pivotal, a related issue to CVE-2016-1000027. Also, within the specific context of Thorn SFTP gateway, this leads to remote code execution.

Weakness

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

Affected Software

Name Vendor Start Version End Version
Sftp_gateway_firmware Thorntech 3.4.0 (including) 3.4.4 (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