Background exploitation KEV catalog No authentication
CVE-2021-22502

Micro Focus Operation Bridge Report (OBR) Remote Code Execution Vulnerability

Remote Code execution vulnerability in Micro Focus Operation Bridge Reporter (OBR) product, affecting version 10.40. The vulnerability could be exploited to allow Remote Code Execution on the OBR server.

CheckOps priority index
9.2/10 Patch within 24 h
Severity9.8
Probability9.7
Exploitation4/5

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

EPSS · today 96.7% 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 1,826 days 03 Nov 2021
CISA due date 17 Nov 2021 for US federal agencies

Exploitation probability EPSS · FIRST

05010026 Sep05 Oct15 Oct24 Oct02 Nov
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 %96.7%
  • 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

Affected products

Operation Bridge Reporter.Operation Bridge Reporter (OBR)
Affected versions
  • OBR 10.40
Weaknesses (CWE)

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

  1. Published

  2. Exploitation reported (ENISA)

  3. Added to the KEV catalog

  4. CISA remediation due date

  5. EPSS peak: 96.7%

References

Other exploited vulnerabilities from the same vendor

  • CVE-2021-22506Micro Focus Access Manager Information Leakage Vulnerability
    6.2 · Background exploitation

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Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors. All exploited vulnerabilities