Background exploitation KEV catalog No authentication

CVE-2021-35587

Oracle Fusion Middleware Unspecified Vulnerability

CheckOps priority index

9.2/10 Patch within 24 h

Severity9.8

Probability9.6

Exploitation4/5

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

EPSS · today 96.3% higher than 99.9% of CVEs

CVSS 3.1 9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:

Exploited for 1,436 days 28 Nov 2022

CISA due date 19 Dec 2022 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 4 / 5

KEV catalog (CISA)28 Nov 2022
Exploited in EUVD (ENISA)28 Nov 2022
Used by ransomwareno
EPSS above 10 %96.3%
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 Access Manager product of Oracle Fusion Middleware (component: OpenSSO Agent). Supported versions that are affected are 11.1.2.3.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Access Manager. Successful attacks of this vulnerability can result in takeover of Oracle Access Manager. 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 products

Access ManagerFusion Middleware

Affected versions

12.2.1.4.0
12.2.1.3.0
11.1.2.3.0

Weaknesses (CWE)

CWE-502 CWE-790

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

19 Jan 2022
Published
28 Nov 2022
Exploitation reported (ENISA)
28 Nov 2022
Added to the KEV catalog
19 Dec 2022
CISA remediation due date
26 Sept 2026
EPSS peak: 96.3%

References

Other exploited vulnerabilities from the same vendor

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