# CVE-2021-20123: A DrayTek VigorConnect bug is being used in attacks

Status: Being used now (CISA KEV, added 2024-09-03)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is DrayTek VigorConnect (CVE-2021-20123) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2021-20123. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official 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. 

## Sources
- 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
- https://nvd.nist.gov/vuln/detail/CVE-2021-20123

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.