Main Vulnerability Database Vulnerabilities #VU75660

Deserialization of Untrusted Data in IBM WebSphere Application Server - CVE-2020-4450

Published: May 2, 2023

Vulnerability identifier: #VU75660

CSH Severity: High

CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2020-4450

CWE-ID: CWE-502

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data. A remote attacker can pass a specially-crafted sequence of serialized objects to the application and execute arbitrary code on the target system.

Affected software

IBM WebSphere Application Server
IBM Tivoli Monitoring

How to mitigate CVE-2020-4450

Install updates from vendor's website.

IBM WebSphere Application Server - addressed in versions 8.5.5.18, 9.0.5.5

External References

Related Security Bulletins