CVE-2021-20123 — Draytek VigorConnect Path Traversal Vulnerability
CVE-2021-20123: Draytek VigorConnect Path Traversal Vulnerability
CISA Known Exploited Vulnerability (KEV)
| Vendor / project | DrayTek |
| Product | VigorConnect |
| Date added | 2024-09-03 |
| Due date | 2024-09-24 |
| Ransomware campaign use | Unknown |
Description
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.
Required action (CISA)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes
https://www.draytek.com/about/security-advisory/vigorconnect-software-security-vulnerability-(cve-2021-20123-cve-2021-20129); https://nvd.nist.gov/vuln/detail/CVE-2021-20123
References
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-20123
- KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog