Vulnerability in Trendnet Tew-827dru
CVE-2021-20151
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.016 (75.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
- Trendnet Tew-827dru — versions 2.0
- Trendnet Tew-827dru Firmware — versions 2.08b01
- Trendnet Ac2600 Tew-827dru — versions 2.08B01
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.tenable.com/security/research/tra-2021-54 (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-20151?
- CVE-2021-20151 is a critical-severity vulnerability in Trendnet Tew-827dru, classified under Session Fixation. CVSS score: 10.0/10. Published 2021-12-30.
- How severe is CVE-2021-20151?
- Critical severity. CVSS v3 base score is 10.0 out of 10.
- Is CVE-2021-20151 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.