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CVE-2020-15415: DrayTek Multiple Vigor Routers OS Command Injection Vulnerability

criticalknown exploitedpublic exploitCVE-2020-15415
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: DrayTekproduct: Vigor3900, Vigor2960, Vigor300BRemote code execution
What
DrayTek Vigor devices have an OS command injection vulnerability.
Who is affected
Remote attackers can exploit this vulnerability on the specified Vigor models.
Urgency
Remediation is critical due to active exploitation and high severity.
Action
Install the latest firmware update for the affected Vigor models.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2024-09-30
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2020-15415

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2020-15415coverage & exploitation statusNVD · CVE.org

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