PT-2021-2944 · Oracle · Oracle Weblogic Server

Cl0Und + 3 · Published 2021-04-22 · Updated 2021-12-08 · CVE-2021-2135

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Oracle WebLogic Server versions 12.2.1.3.0 through 12.2.1.4.0 Oracle WebLogic Server version 14.1.1.0.0

Description The issue exists due to insufficient input validation in the Coherence Container component of Oracle WebLogic Server, allowing a remote attacker to compromise the server's confidentiality, integrity, and availability via T3 and IIOP protocols. Successful attacks can result in the takeover of Oracle WebLogic Server.

Recommendations For Oracle WebLogic Server versions 12.2.1.3.0 through 12.2.1.4.0, update to a version that includes the fix for this issue. For Oracle WebLogic Server version 14.1.1.0.0, update to a version that includes the fix for this issue. As a temporary workaround, consider restricting access to the T3 and IIOP protocols to minimize the risk of exploitation.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2021-02517

CVE-2021-2135

Affected Products

Oracle Weblogic Server

References · 6

• https://oracle.com/security-alerts/cpuapr2021.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-2135 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-2135 · Security Note
• https://bdu.fstec.ru/vul/2021-02517 · Security Note
• https://t.me/cvenotify/13633 · Telegram Post
• https://t.me/cvenotify/18269 · Telegram Post