Advisories

Tenda FH303/A300 V5.07.68_EN Cookie Session Weakness DNS Change

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severity
critical
date
Affecting
  • FH303/A300 <= 5.07.68

CWE
  • CWE-290 Authentication Bypass by Spoofing
CVSS
9.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Description
Tenda FH303/A300 firmware V5.07.68_EN contains a session weakness vulnerability that allows unauthenticated attackers to modify DNS settings by exploiting insufficient cookie validation. Attackers can send GET requests to the /goform/AdvSetDns endpoint with a crafted admin cookie to change DNS servers and redirect user traffic to malicious sites.

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