PT-2023-1309 · Oracle · Oracle Weblogic Server

R00T4Dm · Published 2023-01-17 · Updated 2024-09-17 · CVE-2023-21838

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/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 is related to insufficient input validation in the Core component of Oracle WebLogic Server, allowing an unauthenticated attacker with network access via T3 or IIOP to compromise the server. Successful attacks can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle WebLogic Server.

Recommendations For Oracle WebLogic Server versions 12.2.1.3.0 and 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

DoS

Resource Exhaustion

RCE

Weakness Enumeration

CWE-400

CWE-20

Related Identifiers

BDU:2023-00591

CVE-2023-21838

ZDI-23-118

ZDI-23-241

Affected Products

Oracle Weblogic Server

References · 8

• https://zerodayinitiative.com/advisories/ZDI-23-241 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-21838 · Security Note
• https://bdu.fstec.ru/vul/2023-00591 · Security Note
• https://oracle.com/security-alerts/cpujan2023.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-21838 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-23-118 · Security Note
• https://t.me/cvenotify/94911 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2023011841 · Note