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Exploited vulnerability · CISA KEV

Is CVE-2017-0101 exploited? Yes: in CISA KEV since 15 Mar 2022

Gociux · Microsoft Windows · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2017-0101, Microsoft Windows Transaction Manager Privilege Escalation Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 15 Mar 2022, 1824 days after it was published. It is known to be used in ransomware campaigns. It affects Microsoft Windows. If you run it, CISA's required action is: Apply updates per vendor instructions.

exploitedYesCISA KEV · 15 Mar 2022
ransomwareKnownused in campaigns
EPSStop 1%among the most likely CVEs to be exploited
severity7.8CVSS 3.1 · high
US federal due5 Apr 2022BOD 22-01 deadline

What it is

A privilege escalation vulnerability exists when the Windows Transaction Manager improperly handles objects in memory.

VendorMicrosoft (391 exploited CVEs in KEV)
ProductWindows
VulnerabilityMicrosoft Windows Transaction Manager Privilege Escalation Vulnerability
WeaknessCWE-119
Published17 Mar 2017
Added to KEV15 Mar 2022
Reported by (CNA)microsoft

What to do

  1. Check whether you run it. Look for Windows in your asset inventory, including appliances and cloud images. Stack check lists every exploited Microsoft 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 17 Mar 2017.
  4. Get told next time. Email alerts when CISA adds a CVE for Microsoft.

Other exploited CVEs in Windows

References

Questions

Is CVE-2017-0101 being exploited?

Yes. CISA added CVE-2017-0101 to the Known Exploited Vulnerabilities catalog on 15 Mar 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2017-0101 used in ransomware attacks?

Yes, CISA lists it as known to be used in ransomware campaigns.

How do I fix CVE-2017-0101?

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

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