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Exploited vulnerability · CISA KEV

Is CVE-2020-10199 exploited? Yes: in CISA KEV since 3 Nov 2021

Gociux · Sonatype Nexus Repository · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2020-10199, Sonatype Nexus Repository Remote Code Execution Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 3 Nov 2021, 581 days after it was published. It affects Sonatype Nexus Repository. 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
severity8.8CVSS 3.1 · high
US federal due3 May 2022BOD 22-01 deadline

What it is

Sonatype Nexus Repository contains an unspecified vulnerability that allows for remote code execution.

VendorSonatype (2 exploited CVEs in KEV)
ProductNexus Repository
VulnerabilitySonatype Nexus Repository Remote Code Execution Vulnerability
WeaknessCWE-917
Published1 Apr 2020
Added to KEV3 Nov 2021
Reported by (CNA)mitre

What to do

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

References

Questions

Is CVE-2020-10199 being exploited?

Yes. CISA added CVE-2020-10199 to the Known Exploited Vulnerabilities catalog on 3 Nov 2021, which means there is reliable evidence of exploitation in the wild.

Is CVE-2020-10199 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-2020-10199?

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

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