Actively exploited in the wild
DrayTek Multiple Vigor Routers OS Command Injection Vulnerability
DrayTek - Multiple Vigor Routers · Listed in the CISA KEV since 2024-09-30. This indicates confirmed attacks in production environments.
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CVE-2020-15415
CriticalCVSS 9.8KEVSummary
On DrayTek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1, cgi-bin/mainfunction.cgi/cvmcfgupload allows remote command execution via shell metacharacters in a filename when the text/x-python-script content type is used, a different issue than CVE-2020-14472.
Risk Assessment
An attacker can remotely execute arbitrary system commands on the DrayTek device, leading to full router compromise and potential access to the internal network.
Recommendation
Update DrayTek device firmware to version 1.5.1 or later, which contains the fix for this vulnerability.
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Original NVD description (English source)
On DrayTek Vigor3900, Vigor2960, and Vigor300B devices before 1.5.1, cgi-bin/mainfunction.cgi/cvmcfgupload allows remote command execution via shell metacharacters in a filename when the text/x-python-script content type is used, a different issue than CVE-2020-14472.