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Exploited vulnerability · CISA KEV

Is CVE-2021-22506 exploited? Yes: in CISA KEV since 3 Nov 2021

Gociux · Micro Focus Access Manager · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2021-22506, Micro Focus Access Manager Information Leakage Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 3 Nov 2021, 222 days after it was published. It affects Micro Focus Access Manager. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 3 Nov 2021
ransomwareNot knownno confirmed use
EPSStop 5%very likely to be exploited
severity7.5CVSS 3.1 · high
US federal due17 Nov 2021BOD 22-01 deadline

What it is

Micro Focus Access Manager contains an information leakage vulnerability resulting from a SAML service provider redirection issue when the Assertion Consumer Service URL is used.

VendorMicro Focus (2 exploited CVEs in KEV)
ProductMicro Focus Access Manager
VulnerabilityMicro Focus Access Manager Information Leakage Vulnerability
Weaknessnot specified
Published26 Mar 2021
Added to KEV3 Nov 2021
Reported by (CNA)microfocus

What to do

  1. Check whether you run it. Look for Micro Focus Access Manager 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 26 Mar 2021.
  4. Get told next time. Email alerts when CISA adds a CVE for Micro Focus.

References

Questions

Is CVE-2021-22506 being exploited?

Yes. CISA added CVE-2021-22506 to the Known Exploited Vulnerabilities catalog on 3 Nov 2021, which means there is reliable evidence of exploitation in the wild.

Is CVE-2021-22506 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-2021-22506?

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 Micro Focus Access Manager 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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