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Exploited vulnerability · CISA KEV

Is CVE-2017-6334 exploited? Yes: in CISA KEV since 25 Mar 2022

Gociux · NETGEAR DGN2200 Devices · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2017-6334, NETGEAR DGN2200 Devices OS Command Injection Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 25 Mar 2022, 1845 days after it was published. It affects NETGEAR DGN2200 Devices. If you run it, CISA's required action is: The impacted product is end-of-life and should be disconnected if still in use.

exploitedYesCISA KEV · 25 Mar 2022
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity8.8CVSS 3.1 · high
US federal due15 Apr 2022BOD 22-01 deadline

What it is

dnslookup.cgi on NETGEAR DGN2200 devices with firmware through 10.0.0.50 allows remote authenticated users to execute arbitrary OS commands

VendorNETGEAR (8 exploited CVEs in KEV)
ProductDGN2200 Devices
VulnerabilityNETGEAR DGN2200 Devices OS Command Injection Vulnerability
WeaknessCWE-78
Published6 Mar 2017
Added to KEV25 Mar 2022
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for DGN2200 Devices in your asset inventory, including appliances and cloud images. Stack check lists every exploited NETGEAR CVE at once.
  2. Apply the fix. The impacted product is end-of-life and should be disconnected if still in use.
  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 6 Mar 2017.
  4. Get told next time. Email alerts when CISA adds a CVE for NETGEAR.

References

Questions

Is CVE-2017-6334 being exploited?

Yes. CISA added CVE-2017-6334 to the Known Exploited Vulnerabilities catalog on 25 Mar 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2017-6334 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-2017-6334?

The impacted product is end-of-life and should be disconnected if still in use. Check NETGEAR's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected DGN2200 Devices 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 · NETGEAR scorecard · act-now radar.

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