CVE-2021-2394
published 2021-07-21CVE-2021-2394: Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 10.3.6.0.0…
PriorityP182critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
76.57%
99.5th percentile
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, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, 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
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| oracle | weblogic_server | — | — |
| 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 | — | — |
| oracle_corporation | weblogic_server | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →CVE-2021-2394 is exploitable via the T3 protocol — monitor/block T3 traffic to Oracle WebLogic Server ports (default 7001, 7002) from untrusted networks ↗
- →CVE-2021-2394 is also exploitable via the IIOP protocol — monitor/block IIOP traffic to WebLogic Server from untrusted networks ↗
- →Successful exploitation results in full server takeover (RCE) — alert on unexpected child processes spawned by WebLogic JVM processes ↗
- →No authentication is required; any unauthenticated inbound T3/IIOP connection to WebLogic should be treated as suspicious in hardened environments ↗
- ·All five supported WebLogic versions are affected; patching scope is broad — 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, and 14.1.1.0.0 ↗
- ·The vulnerability resides in the WebLogic Core component; T3 and IIOP protocols must be disabled or firewalled at the network perimeter if patching is not immediately possible ↗
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.010.0CRITICALAV:N/AC:L/Au:N/C:C/I:C/A:C
vendor_oracle9.8CRITICAL
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Oracle
Oracle Oracle Fusion Middleware Risk Matrix: Core — CVE-2021-2394
vendor_oracle·2021-07-15·CVSS 9.8
CVE-2021-2394 [CRITICAL] Oracle Oracle Fusion Middleware Risk Matrix: Core — CVE-2021-2394
Oracle Oracle Fusion Middleware Risk Matrix: Core vulnerability
CVE: CVE-2021-2394
CVSS: 9.8
Protocol: T3, IIOP
Remote exploit: Yes
Affected versions: Network
Advisory: cpujul2021 (JUL 2021)
GHSA
GHSA-hvgh-qwjq-jj75: Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core)
ghsa_unreviewed·2022-05-24
CVE-2021-2394 [CRITICAL] GHSA-hvgh-qwjq-jj75: Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core)
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, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, 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).
No detection rules found.
No public exploits indexed.
2021-07-21
Published