Oracle WebLogic Server Unspecified Vulnerability

CheckOps priority index

8.4/10 Patch within 24 h

Severity7.5

Probability10.0

Exploitation4/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 99.9% higher than 99.97% of CVEs

CVSS 3.1 7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:

Exploited for 1,282 days 01 May 2023

CISA due date 22 May 2023 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 4 / 5

KEV catalog (CISA)01 May 2023
Exploited in EUVD (ENISA)01 May 2023
Used by ransomwareno
EPSS above 10 %99.9%
No account, over the networkyes

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply updates per vendor instructions.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 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 unauthorized access to critical data or complete access to all Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Affected products

WebLogic Server

Affected versions

12.2.1.4.0
14.1.1.0.0
12.2.1.3.0

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

17 Jan 2023
Published
01 May 2023
Exploitation reported (ENISA)
01 May 2023
Added to the KEV catalog
22 May 2023
CISA remediation due date
26 Sept 2026
EPSS peak: 99.9%

References

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