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

What is CVE-2021-3166?

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.

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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

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