Vulnerability · Published Dec 30, 2021 · Assigned by tenable

CVE-2021-20151

Critical 10.0

In plain English

A critical-severity security flaw in Trendnet AC2600 TEW-827DRU. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 77% of all known vulnerabilities).

Severity (CVSS NVD)10.0Critical

Exploit odds (30 days)1.7%top 23.2% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Trendnet AC2600 TEW-827DRU version 2.08B01 contains a flaw in the session management for the device. The router's management software manages web sessions based on IP address rather than verifying client cookies/session tokens/etc. This allows an attacker (whether from a different computer, different web browser on the same machine, etc.) to take over an existing session. This does require the attacker to be able to spoof or take over original IP address of the original user's session.

Affected products (as reported)

Vendor	Product	Versions
n/a	Trendnet AC2600 TEW-827DRU	2.08B01

References

https://www.tenable.com/security/research/tra-2021-54 x_refsource_MISC