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Advisories

DrayTek VigorAP Multiple Models OS Command Injection via upload_settings.cgi

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severity
high
date
Affecting

  • VigorAP 918R >= 0, < 1.4.11

  • VigorAP 960C >= 0, < 1.4.12

  • VigorAP 1060C >= 0, < 1.4.12

  • VigorAP 906 >= 0, < 1.4.13

  • VigorAP 912C >= 0, < 1.4.15

  • VigorAP 903 >= 0, < 1.4.22

CWE
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CVSS
8.6
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Jincheng Wang (@winmt), Le Yu (Nanjing University of Posts and Telecommunications), Xiapu Luo (The Hong Kong Polytechnic University)
Description
Multiple DrayTek VigorAP models contain a command injection vulnerability in the upload_settings.cgi interface. The vulnerability is caused by insufficient filtering before the restorekey field is concatenated into a shell command. A remote attacker can trigger this vulnerability via crafted input to execute arbitrary commands with root privileges. Exploitation requires valid administrative credentials for the device's web management interface.

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