CVE-2021-20123: Draytek VigorConnect Path Traversal Vulnerability
Draytek VigorConnect contains a path traversal vulnerability in the DownloadFileServlet endpoint. An unauthenticated attacker could leverage this vulnerability to download arbitrary files from the underlying operating system with root privileges.
| Vendor | DrayTek |
|---|---|
| Product | VigorConnect |
| Date added to KEV | 2024-09-03 |
| Due date (BOD 22-01) | 2024-09-24 |
| Known ransomware campaign use | Unknown |
| CWE | CWE-22 |
| Required action | Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. |
What to do
- Identify every instance of DrayTek VigorConnect in your environment (asset inventory, EDR, vulnerability scanner).
- Apply CISA's required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Federal civilian agencies must act by 2024-09-24 under BOD 22-01; other organizations can use the same date as a target.
- Check the vendor advisory and NVD entry linked below for affected versions, then record the fix in your change log.
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