Draytek Vigor vulnerabilities

A stack-based buffer overflow vulnerability has been found in the URL parsing functionality of the TR069 STUN server in DrayTek Vigor routers. Insufficient bounds checking on URL parameters allows a remote attacker to execute arbitrary code with elevated privileges by sending a maliciously crafted request.

A vulnerability in Draytek Vigor devices allows attackers to upload crafted APP Enforcement modules, leading to arbitrary code execution. The issue affects multiple models before specific firmware versions.

Draytek Vigor devices store passwords in plaintext. This vulnerability affects multiple models and firmware versions.

Draytek Vigor devices use insecure strcmp and memcmp functions, enabling timing attacks. The vulnerability affects multiple models before specific firmware versions. Attackers can potentially obtain sensitive information by measuring response times.

Draytek Vigor devices do not verify certificates when downloading APPE modules, allowing attackers to upload crafted modules from non-official servers and achieve remote code execution.