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CVE-2020-6287

SAP — SAP NetWeaver Missing Authentication for Critical Function Vulnerability

SAP · CWE-306 · in CISA KEV since 2021-11-03

ExigentKEV since 2021 · listed over a yearCISA KEVActively Exploited
86

EVRS 86 of 100 Immediate

Out-of-Band / Urgent Remediation

Rank 347 of 2,960 tracked

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Why it scores 86

Evidence available: 6 of 7 signals

Listed in the CISA KEV catalog, and an EPSS probability of 0.947.

  • CISA KEVApplied
  • RansomwareDid not apply
  • Vendor exploitationDid not apply
  • EPSSApplied
  • Microsoft Exploitability IndexNot applicable
  • Pre-patch disclosureNo data
  • KEV recencyDid not apply
  • CVSSApplied

The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data

Fix

No fixed version identified yet

CISA required action

Affected versions

  • netweaver application server java7.307.317.407.50

Remediation

Apply updates per vendor instructions.

Evidence

Each value with its source
MeasureValueSource
CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. 10.0 NVD
FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. 0.947 (99.86th pctl) FIRST EPSS
Actively exploitedWhether a source of record has confirmed attacks using it in the wild. Confirmed CISA KEV
Ransomware campaign useWhether CISA has seen ransomware operators use it. Unknown or none CISA KEV
CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. 2022-05-03 · KEV since 2021 · listed over a year CISA KEV
Public exploit moduleA module existing is not the same as active exploitation. Public module exists Metasploit
EUVD cross-referenceENISA's record: CVSS 10.0 (v3.0), assigned by sap. Listed ENISA EUVD

Description

NVD

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.

What CISA says to do

Public module

Metasploit lists a public normal-rank module for this CVE: SAP Unauthenticated WebService User Creation (admin/sap/cve_2020_6287_ws_add_user). A module existing is not the same as active exploitation; see metasploit.com.