CVE-2021-20165: trendnet tew-827dru_firmware Cross-Site Request Forgery (CSRF)

Vulnerability summary

CVE-2021-20165 is a high (CVSS 8.8) Cross-Site Request Forgery (CSRF) vulnerability in trendnet tew-827dru_firmware. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 49.4% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 30-12-2021
   PublishedVulnerability first disclosed.
2. 03-08-2024
   Last modifiedVulnerability information updated.

Description

Trendnet AC2600 TEW-827DRU version 2.08B01 does not properly implement csrf protections. Most pages lack proper usage of CSRF protections or mitigations. Additionally, pages that do make use of CSRF tokens are trivially bypassable as the server does not appear to validate them properly (i.e. re-using an old token or finding the token thru some other method is possible).

• CWE-352Cross-Site Request Forgery (CSRF)The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.