// For flags

CVE-2021-2211

Oracle WebLogic Server T3 Protocol Deserialization of Untrusted Data Information Disclosure Vulnerability

Severity Score

5.9
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Web Services). Supported versions that are affected are 10.3.6.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Difficult to exploit vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 5.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

Una vulnerabilidad en el producto Oracle WebLogic Server de Oracle Fusion Middleware (componente: Web Services). Las versiones compatibles que están afectadas son 10.3.6.0.0, 12.2.1.3.0, 12.2.1.4.0 y 14.1.1.0.0. La vulnerabilidad difícil de explotar permite a un atacante no autenticado con acceso a la red por medio de T3, IIOP comprometer a Oracle WebLogic Server. Los ataques con éxito de esta vulnerabilidad pueden resultar en el acceso no autorizado a datos críticos o el acceso completo a todos los datos accesibles de Oracle WebLogic Server. CVSS 3.1 Puntuación Base 5.9 (Impactos en la Confidencialidad). Vector CVSS: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Oracle WebLogic Server. Authentication is required to exploit this vulnerability.
The specific flaw exists within the handling of the T3 protocol. Crafted data in a T3 protocol message can trigger the deserialization of untrusted data. An attacker can leverage this vulnerability to disclose information in the context of the service account.

*Credits: Quynh Le of VNPT ISC
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-12-09 CVE Reserved
  • 2021-04-22 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-09-09 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Oracle
Search vendor "Oracle"
 Weblogic Server
Search vendor "Oracle" for product "Weblogic Server"
 10.3.6.0.0
Search vendor "Oracle" for product "Weblogic Server" and version "10.3.6.0.0"
-
Affected
Oracle
Search vendor "Oracle"
 Weblogic Server
Search vendor "Oracle" for product "Weblogic Server"
 12.2.1.3.0
Search vendor "Oracle" for product "Weblogic Server" and version "12.2.1.3.0"
-
Affected
Oracle
Search vendor "Oracle"
 Weblogic Server
Search vendor "Oracle" for product "Weblogic Server"
 12.2.1.4.0
Search vendor "Oracle" for product "Weblogic Server" and version "12.2.1.4.0"
-
Affected
Oracle
Search vendor "Oracle"
 Weblogic Server
Search vendor "Oracle" for product "Weblogic Server"
 14.1.1.0.0
Search vendor "Oracle" for product "Weblogic Server" and version "14.1.1.0.0"
-
Affected