Background exploitation KEV catalog No authentication

CVE-2020-6287

SAP NetWeaver Missing Authentication for Critical Function Vulnerability

CheckOps priority index

9.2/10 Patch within 24 h

Severity10.0

Probability9.5

Exploitation4/5

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

EPSS · today 94.7% higher than 99.9% of CVEs

CVSS 3.0 10.0 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:

Exploited for 1,826 days 03 Nov 2021

CISA due date 03 May 2022 for US federal agencies

Exploitation probability EPSS · FIRST

EPSS probability (%)Percentile among all CVEs

Exploitation signals 4 / 5

KEV catalog (CISA)03 Nov 2021
Exploited in EUVD (ENISA)03 Nov 2021
Used by ransomwareno
EPSS above 10 %94.7%
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

SAP NetWeaver AS JAVA (LM Configuration Wizard), versions - 7.30, 7.31, 7.40, 7.50, does not perform an authentication check which allows an attacker without prior authentication to execute configuration tasks to perform critical actions against the SAP Java system, including the ability to create an administrative user, and therefore compromising Confidentiality, Integrity and Availability of the system, leading to Missing Authentication Check.

Affected products

SAP NetWeaver AS JAVA (LM Configuration Wizard)NetWeaver

Affected versions

< 7.30
< 7.50
< 7.31
< 7.40

Weaknesses (CWE)

CWE-306

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

14 Jul 2020
Published
03 Nov 2021
Exploitation reported (ENISA)
03 Nov 2021
Added to the KEV catalog
03 May 2022
CISA remediation due date
26 Sept 2026
EPSS peak: 94.7%

References

Other exploited vulnerabilities from the same vendor

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CVE-2019-0344SAP Commerce Cloud Deserialization of Untrusted Data Vulnerability
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CVE-2022-22536SAP Multiple Products HTTP Request Smuggling Vulnerability
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CVE-2021-38163SAP NetWeaver Unrestricted File Upload Vulnerability
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