Vulnerability Details : CVE-2020-2883

Public exploit exists!
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via IIOP, T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Published 2020-04-15 14:15:34
Updated 2025-03-14 15:07:06
Source Oracle
View at NVD,   CVE.org

Products affected by CVE-2020-2883

CVE-2020-2883 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:
Oracle WebLogic Server Unspecified Vulnerability
CISA required action:
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA description:
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.
Notes:
https://www.oracle.com/security-alerts/cpuapr2020.html ; https://nvd.nist.gov/vuln/detail/CVE-2020-2883
Added on 2025-01-07 Action due date 2025-01-28

Exploit prediction scoring system (EPSS) score for CVE-2020-2883

EPSS FAQ
93.73%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 100 %
Percentile, the proportion of vulnerabilities that are scored at or less

Metasploit modules for CVE-2020-2883

  • WebLogic Server Deserialization RCE BadAttributeValueExpException ExtComp
    Disclosure Date: 2020-04-30
    First seen: 2020-06-04
    exploit/multi/misc/weblogic_deserialize_badattr_extcomp
    There exists a Java object deserialization vulnerability in multiple versions of WebLogic. Unauthenticated remote code execution can be achieved by sending a serialized `BadAttributeValueExpException` object over the T3 protocol to vulnerable versi

CVSS scores for CVE-2020-2883

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.5
 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
 NIST
9.8
 CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
 Oracle
9.8
 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
 NIST

References for CVE-2020-2883

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