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Exploited vulnerability · CISA KEV

Is CVE-2021-22502 exploited? Yes: in CISA KEV since 3 Nov 2021

Gociux · Micro Focus Operation Bridge Reporter (OBR) · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2021-22502, Micro Focus Operation Bridge Report (OBR) Remote Code Execution Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 3 Nov 2021, 268 days after it was published. It affects Micro Focus Operation Bridge Reporter (OBR). If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 3 Nov 2021
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.1 · critical
US federal due17 Nov 2021BOD 22-01 deadline

What it is

Micro Focus Operation Bridge Report (OBR) contains an unspecified vulnerability that allows for remote code execution.

VendorMicro Focus (2 exploited CVEs in KEV)
ProductOperation Bridge Reporter (OBR)
VulnerabilityMicro Focus Operation Bridge Report (OBR) Remote Code Execution Vulnerability
WeaknessCWE-20, CWE-78
Published8 Feb 2021
Added to KEV3 Nov 2021
Reported by (CNA)microfocus

What to do

  1. Check whether you run it. Look for Operation Bridge Reporter (OBR) in your asset inventory, including appliances and cloud images. Stack check lists every exploited Micro Focus CVE at once.
  2. Apply the fix. Apply updates per vendor instructions.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 8 Feb 2021.
  4. Get told next time. Email alerts when CISA adds a CVE for Micro Focus.

References

Questions

Is CVE-2021-22502 being exploited?

Yes. CISA added CVE-2021-22502 to the Known Exploited Vulnerabilities catalog on 3 Nov 2021, which means there is reliable evidence of exploitation in the wild.

Is CVE-2021-22502 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2021-22502?

Apply updates per vendor instructions. Check Micro Focus's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Operation Bridge Reporter (OBR) and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in November 2021 · Micro Focus scorecard · act-now radar.

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