Symlink Vulnerability in Trendnet AC2600 Router
CVE-2021-20153

6.8MEDIUM

Key Information:

Vendor

Trendnet

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

What is CVE-2021-20153?

The Trendnet AC2600 TEW-827DRU router version 2.08B01 contains a symlink vulnerability within its bittorrent functionality. When this feature is enabled, an attacker can exploit this vulnerability by utilizing a maliciously crafted flash drive. If inserted into the router, the device can be tricked into downloading files to arbitrary locations on its filesystem, including sensitive directories like 'config', 'downloads', and 'torrents'. This exposure can potentially allow remote code execution, particularly through the 'downloads' directory where arbitrary files can be redirected.

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:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Physical
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2021-20153 : Symlink Vulnerability in Trendnet AC2600 Router