Improper Access Control in Trendnet AC2600 TEW-827DRU Allows Malicious Firmware Updates
CVE-2021-20156

6.5MEDIUM

Key Information:

Vendor

Trendnet

Status
Trendnet Ac2600 Tew-827dru
Vendor
CVE Published:
30 December 2021

What is CVE-2021-20156?

The Trendnet AC2600 TEW-827DRU version 2.08B01 is affected by an improper access control configuration which may allow attackers to conduct malicious firmware updates. This vulnerability arises from the absence of proper signature validation during firmware updates, whether installed manually or via the automated update feature in the device's admin interface. As a result, if an attacker successfully impersonates the update server, they can deliver unverified and potentially harmful firmware to the device, compromising its integrity and operational security.

Affected Version(s)

Trendnet AC2600 TEW-827DRU 2.08B01

References

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

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.