CVE-2020-2883: Oracle WebLogic Server T3 Protocol Deserialization of Untrusted Data Remote Code Execution Vulnerability
First published: Wed Apr 15 2020(Updated: )
Oracle WebLogic Server, a product within the Fusion Middleware suite, contains an unspecified vulnerability exploitable by an unauthenticated attacker with network access via IIOP or T3.
Credit: secalert_us@oracle.com secalert_us@oracle.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Oracle WebLogic Server | ||
| Oracle WebLogic Server | ||
| Oracle WebLogic Server | =10.3.6.0.0 | |
| Oracle WebLogic Server | =12.1.3.0.0 | |
| Oracle WebLogic Server | =12.2.1.3.0 | |
| Oracle WebLogic Server | =12.2.1.4.0 |
Remedy
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
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Reference Links
- http://packetstormsecurity.com/files/157950/WebLogic-Server-Deserialization-Remote-Code-Execution.html
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://www.zerodayinitiative.com/advisories/ZDI-20-504/
- https://www.zerodayinitiative.com/advisories/ZDI-20-570/
- https://nvd.nist.gov/vuln/detail/CVE-2020-2883
- https://www.bleepingcomputer.com/news/security/cisa-warns-of-critical-oracle-mitel-flaws-exploited-in-attacks/
- https://www.theregister.com/2025/01/08/mitel_0_day_oracle_rce_under_exploit/
Frequently Asked Questions
What is the severity of CVE-2020-2883?
CVE-2020-2883 is considered a critical vulnerability due to its potential for remote code execution by unauthenticated attackers.
How do I fix CVE-2020-2883?
To fix CVE-2020-2883, it is recommended to apply the security patches provided by Oracle for affected versions of WebLogic Server.
Which versions of Oracle WebLogic Server are affected by CVE-2020-2883?
CVE-2020-2883 affects Oracle WebLogic Server versions 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, and 12.2.1.4.0.
What types of attacks can be executed due to CVE-2020-2883?
CVE-2020-2883 allows remote attackers to execute arbitrary code, potentially compromising the entire system.
Is authentication required to exploit CVE-2020-2883?
No, CVE-2020-2883 can be exploited by unauthenticated attackers with network access.
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