Deserialization of untrusted data in IBM WebSphere Application Server - CVE-2020-4589
Published: August 20, 2020
Vulnerability identifier: #VU45825
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-2020-4589
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 specially crafted data to the application and execute arbitrary code on the target system.
The vulnerability only occurs if an undocumented customization has been applied by an administrator.
Affected software
IBM WebSphere Application Server
How to mitigate CVE-2020-4589
Install updates from vendor's website.