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Exploited vulnerability · CISA KEV

Is CVE-2020-25223 exploited? Yes: in CISA KEV since 25 Mar 2022

Gociux · Sophos SG UTM · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2020-25223, Sophos SG UTM Remote Code Execution Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 25 Mar 2022, 546 days after it was published. It affects Sophos SG UTM. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 25 Mar 2022
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.1 · critical
US federal due15 Apr 2022BOD 22-01 deadline

What it is

A remote code execution vulnerability exists in the WebAdmin of Sophos SG UTM.

VendorSophos (7 exploited CVEs in KEV)
ProductSG UTM
VulnerabilitySophos SG UTM Remote Code Execution Vulnerability
WeaknessCWE-78
Published25 Sep 2020
Added to KEV25 Mar 2022
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for SG UTM in your asset inventory, including appliances and cloud images. Stack check lists every exploited Sophos 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 25 Sep 2020.
  4. Get told next time. Email alerts when CISA adds a CVE for Sophos.

References

Questions

Is CVE-2020-25223 being exploited?

Yes. CISA added CVE-2020-25223 to the Known Exploited Vulnerabilities catalog on 25 Mar 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2020-25223 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-2020-25223?

Apply updates per vendor instructions. Check Sophos's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected SG UTM 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 March 2022 · Sophos scorecard · act-now radar.

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