CVE-2021-35617

published 2021-10-20

CVE-2021-35617: Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Coherence Container). Supported versions that are affected are…

Priority P2 63 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Coherence Container). Supported versions that are affected are 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Affected

8 ranges

Vendor	Product	Version range	Fixed in
oracle	weblogic_server	—	—
oracle	weblogic_server	—	—
oracle	weblogic_server	—	—
oracle	weblogic_server	—	—
oracle_corporation	weblogic_server	—	—
oracle_corporation	weblogic_server	—	—
oracle_corporation	weblogic_server	—	—
oracle_corporation	weblogic_server	—	—

Detection & IOCs extracted from sources · hover to see the quote

• → CVE-2021-35617 exploits Oracle WebLogic Server via the IIOP protocol (Internet Inter-ORB Protocol); monitor and restrict IIOP traffic (typically TCP port 7001/7002 or dedicated IIOP ports) to detect or block unauthenticated remote exploitation attempts targeting the Coherence Container component. ↗
• → Affected Oracle WebLogic Server versions are 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, and 14.1.1.0.0 — use version fingerprinting to identify unpatched instances in the environment. ↗
• → The vulnerable component is the Coherence Container within Oracle WebLogic Server (Oracle Fusion Middleware); focus detection on IIOP-based requests targeting this component. ↗

• · This is a network-exploitable, unauthenticated vulnerability with no required user interaction (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), meaning any exposed IIOP port on affected WebLogic versions is at critical risk of full server takeover without any authentication barrier. ↗
• · The attack vector is purely network-based over IIOP with no authentication required; perimeter controls (firewalls, ACLs) blocking external IIOP access are a critical compensating control until patching is complete. ↗

CVSS provenance

nvd v3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 7.5 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P

vendor_oracle 9.8 CRITICAL

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