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Exploited vulnerability · CISA KEV

Is CVE-2018-6530 exploited? Yes: in CISA KEV since 8 Sep 2022

Gociux · D-Link Multiple Routers · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2018-6530, D-Link Multiple Routers OS Command Injection Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 8 Sep 2022, 1647 days after it was published. It is known to be used in ransomware campaigns. It affects D-Link Multiple Routers. If you run it, CISA's required action is: The vendor D-Link published an advisory stating the fix under CVE-2018-20114 properly patches KEV entry CVE-2018-6530. If the device is still supported, apply updates per vendor instructions. If the affected device has since entered its end-of-life, it should be disconnected if still in use.

exploitedYesCISA KEV · 8 Sep 2022
ransomwareKnownused in campaigns
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.1 · critical
US federal due29 Sep 2022BOD 22-01 deadline

What it is

Multiple D-Link routers contain an unspecified vulnerability that allows for execution of OS commands.

VendorD-Link (26 exploited CVEs in KEV)
ProductMultiple Routers
VulnerabilityD-Link Multiple Routers OS Command Injection Vulnerability
WeaknessCWE-78
Published6 Mar 2018
Added to KEV8 Sep 2022
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for Multiple Routers in your asset inventory, including appliances and cloud images. Stack check lists every exploited D-Link CVE at once.
  2. Apply the fix. The vendor D-Link published an advisory stating the fix under CVE-2018-20114 properly patches KEV entry CVE-2018-6530. If the device is still supported, apply updates per vendor instructions. If the affected device has since entered its end-of-life, it 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 2018.
  4. Get told next time. Email alerts when CISA adds a CVE for D-Link.

Other exploited CVEs in Multiple Routers

References

Questions

Is CVE-2018-6530 being exploited?

Yes. CISA added CVE-2018-6530 to the Known Exploited Vulnerabilities catalog on 8 Sep 2022, which means there is reliable evidence of exploitation in the wild.

Is CVE-2018-6530 used in ransomware attacks?

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

How do I fix CVE-2018-6530?

The vendor D-Link published an advisory stating the fix under CVE-2018-20114 properly patches KEV entry CVE-2018-6530. If the device is still supported, apply updates per vendor instructions. If the affected device has since entered its end-of-life, it should be disconnected if still in use. Check D-Link's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Multiple Routers 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 September 2022 · D-Link scorecard · act-now radar.

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