Deserialization of Untrusted Data in Oracle WebLogic Server - CVE-2020-2883
Published: May 1, 2020 / Updated: January 7, 2025
Vulnerability identifier: #VU27477
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-2020-2883
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
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 T3 Protocol data in the Oracle WebLogic Server. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Oracle WebLogic Server
How to mitigate CVE-2020-2883
Install updates from vendor's website.
Links to Public Exploits and PoC-codes
- Exploit #7024 - POC_CVE-2020-2883 (POC for CVE-2020-2883) (November 16, 2021)
- Exploit #4884 - CVE-2020-2883 (CVE-2020-2883) (November 30, 2020)
- Exploit #4711 - CVE-2020-2883 () (October 16, 2020)
- Exploit #4507 - WebLogic-Shiro-shell (WebLogic利用CVE-2020-2883打Shiro rememberMe反序列化漏洞，一键注册蚁剑filter内存shell) (August 21, 2020)
- Exploit #3519 - CVE-2020-14645 () (July 20, 2020)
- Exploit #3015 - WebLogic Server Deserialization RCE BadAttributeValueExpException ExtComp (June 4, 2020)
- Exploit #2965 - CVE-2020-2883 (Weblogic coherence.jar RCE) (June 3, 2020)
- Exploit #2970 - Weblogic_CVE-2020-2883_POC (Proof of concept for Weblogic CVE-2020-2883) (June 3, 2020)
- Exploit #2977 - weblogicPoc (Weblogic Vuln POC EXP cve-2020-2551 cve-2020-2555 cve-2020-2883 ，。。。) (June 3, 2020)