Improper input validation in Oracle WebLogic Server - CVE-2023-21839
Published: January 18, 2023 / Updated: April 26, 2024
Vulnerability identifier: #VU71318
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-21839
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
The vulnerability exists due to improper input validation within the Core component in Oracle WebLogic Server. A remote non-authenticated attacker can exploit this vulnerability to gain access to sensitive information.
Affected software
Oracle WebLogic Server
RSA Authentication Manager
RSA Authentication Manager
How to mitigate CVE-2023-21839
Install updates from vendor's website.
RSA Authentication Manager - update to 8.7 Patch 3
Links to Public Exploits and PoC-codes
- Exploit #9759 - CVE-2023-21839 (Weblogic CVE-2023-21839 RCE (无需Java依赖一键RCE)) (April 26, 2024)
- Exploit #9156 - Weblogic-CVE-2023-21839 () (June 27, 2023)
- Exploit #9137 - CVE-2023-21839 (Weblogic CVE-2023-21839 / CVE-2023-21931 / CVE-2023-21979 一键检测) (June 26, 2023)
- Exploit #9101 - Oracle Weblogic PreAuth Remote Command Execution via ForeignOpaqueReference IIOP Deserialization (June 9, 2023)