File Upload Vulnerability in ASUS DSL-N14U-B1 Devices
CVE-2021-3166

7.5HIGH

Key Information:

Vendor
Asus
Status
Dsl-n14u B1 Firmware
Vendor
CVE Published:
18 January 2021

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A vulnerability has been identified in the ASUS DSL-N14U-B1 device that allows unauthorized file uploads. An attacker can exploit this flaw by uploading a crafted firmware file named Settings_DSL-N14U-B1.trx, which triggers shutdown measures across critical services, resulting in service outages. This security issue poses a significant threat as it enables persistent disruption of network operations.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-3166
Created by kaisersource

References

https://kaisersource.github.io/dsl-n14u
x_refsource_MISC
https://github.com/kaisersource/kaisersource.github.io/bl...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.