← gociux.comall exploited CVEs

Exploited vulnerability · CISA KEV

Is CVE-2020-15415 exploited? Yes: in CISA KEV since 30 Sep 2024

Gociux · DrayTek Multiple Vigor Routers · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2020-15415, DrayTek Multiple Vigor Routers OS Command Injection Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 30 Sep 2024, 1553 days after it was published. It affects DrayTek Multiple Vigor Routers. If you run it, CISA's required action is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 30 Sep 2024
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity9.8CVSS 3.1 · critical
US federal due21 Oct 2024BOD 22-01 deadline

What it is

DrayTek Vigor3900, Vigor2960, and Vigor300B devices contain an OS command injection vulnerability in cgi-bin/mainfunction.cgi/cvmcfgupload that allows for remote code execution via shell metacharacters in a filename when the text/x-python-script content type is used.

VendorDrayTek (5 exploited CVEs in KEV)
ProductMultiple Vigor Routers
VulnerabilityDrayTek Multiple Vigor Routers OS Command Injection Vulnerability
WeaknessCWE-78
Published30 Jun 2020
Added to KEV30 Sep 2024
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for Multiple Vigor Routers in your asset inventory, including appliances and cloud images. Stack check lists every exploited DrayTek CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
  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 30 Jun 2020.
  4. Get told next time. Email alerts when CISA adds a CVE for DrayTek.

Other exploited CVEs in Multiple Vigor Routers

References

Questions

Is CVE-2020-15415 being exploited?

Yes. CISA added CVE-2020-15415 to the Known Exploited Vulnerabilities catalog on 30 Sep 2024, which means there is reliable evidence of exploitation in the wild.

Is CVE-2020-15415 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-2020-15415?

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check DrayTek's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected Multiple Vigor 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 2024 · DrayTek scorecard · act-now radar.

Running DrayTek in a regulated environment?

We check exposure across your estate, patch or mitigate with your team, and set up detection for what attackers do after exploiting it.

Get in touch →