CVE-2021-20165

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).

CVSS v3 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.tenable.com/security/research/tra-2021-54	Exploit Third Party Advisory
https://www.tenable.com/security/research/tra-2021-54	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:trendnet:tew-827dru_firmware:2.08b01:*:*:*:*:*:*:*

cpe:2.3:h:trendnet:tew-827dru:2.0:*:*:*:*:*:*:*

History

21 Nov 2024, 05:46

Type	Values Removed	Values Added
References	~~() https://www.tenable.com/security/research/tra-2021-54 - Exploit, Third Party Advisory~~	() https://www.tenable.com/security/research/tra-2021-54 - Exploit, Third Party Advisory

07 Jan 2022, 17:41

Type	Values Removed	Values Added
CPE		cpe:2.3:h:trendnet:tew-827dru:2.0:::::::* cpe:2.3:o:trendnet:tew-827dru_firmware:2.08b01:::::::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 6.8 v3 : 8.8
References	~~(MISC) https://www.tenable.com/security/research/tra-2021-54 -~~	(MISC) https://www.tenable.com/security/research/tra-2021-54 - Exploit, Third Party Advisory
CWE		CWE-352

30 Dec 2021, 22:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-12-30 22:15

Updated : 2024-11-21 05:46

NVD link : CVE-2021-20165

Mitre link : CVE-2021-20165

CVE.ORG link : CVE-2021-20165

JSON object : View

Products Affected

trendnet

tew-827dru
tew-827dru_firmware

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

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