Oracle Corporation WebLogic Server Remote Code Execution Vulnerability

CheckOps priority index

9.0/10 Patch within 24 h

Severity7.5

Probability10.0

Exploitation5/5

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

EPSS · today 99.99% higher than 99.99% of CVEs

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

Exploited for 1,727 days 10 Feb 2022

CISA due date 10 Aug 2022 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 5 / 5

KEV catalog (CISA)10 Feb 2022
Exploited in EUVD (ENISA)10 Feb 2022
Used by ransomwareyes
EPSS above 10 %99.99%
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 component of Oracle Fusion Middleware (subcomponent: WLS Security). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.1.0 and 12.2.1.2.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3 to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Affected products

WebLogic Server

Affected versions

10.3.6.0.0
12.2.1.2.0
12.1.3.0.0
12.2.1.1.0

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

19 Oct 2017
Published
10 Feb 2022
Exploitation reported (ENISA)
10 Feb 2022
Added to the KEV catalog
10 Aug 2022
CISA remediation due date
14 Oct 2026
EPSS peak: 99.99%

References

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