DrayTek Multiple Vigor Routers OS Command Injection Vulnerability
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…
Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.
Exploitation probability EPSS · FIRST
Exploitation signals 4 / 5
- KEV catalog (CISA)30 Sept 2024
- Exploited in EUVD (ENISA)30 Sept 2024
- Used by ransomwareno
- EPSS above 10 %84.5%
- No account, over the networkyes
What to do
Fix
Apply the vendor’s fix as soon as it is available.
CISA guidance: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Meanwhile
Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.
Manufacturers (CRA)
Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained
Description ENISA EUVD
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.
Affected products
Open source packages OSV
Affected libraries according to OSV, with fixed versions.
Timeline
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Published
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Exploitation reported (ENISA)
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Added to the KEV catalog
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CISA remediation due date
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EPSS peak: 84.5%
References
Other exploited vulnerabilities from the same vendor
- CVE-2024-12987DrayTek Vigor Routers OS Command Injection Vulnerability8.1 · Background exploitation
- CVE-2021-20124Draytek VigorConnect Path Traversal Vulnerability8.3 · Background exploitation
- CVE-2021-20123Draytek VigorConnect Path Traversal Vulnerability8.1 · Background exploitation
- CVE-2020-8515Multiple DrayTek Vigor Routers Web Management Page Vulnerability9.3 · Background exploitation