Remote Stack-Based Buffer Overflow in Tenda AC8 Router
CVE-2024-4066

8.8HIGH

Key Information:

Vendor
Tenda
Status
Ac8
Vendor
CVE Published:
23 April 2024

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A serious stack-based buffer overflow vulnerability has been identified in the Tenda AC8 router, specifically in the function 'fromAdvSetMacMtuWan' located in the /goform/AdvSetMacMtuWan file. This vulnerability arises from insufficient validation of input parameters such as 'wanMTU', 'wanSpeed', 'cloneType', 'mac', 'serviceName', and 'serverName'. Attackers can exploit this vulnerability remotely, potentially leading to unauthorized access and malicious control over the affected device. Despite attempts to inform Tenda, no response was received, allowing this critical vulnerability to pose an ongoing risk to users.

Affected Version(s)

AC8 16.03.34.09

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-2024-4066 - Proof of Concept

References

https://vuldb.com/?id.261792
vdb-entrytechnical-description
https://vuldb.com/?ctiid.261792
signaturepermissions-required
https://vuldb.com/?submit.316495
third-party-advisory

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database1 Proof of Concept(s)

Credit

yhryhryhr_tu (VulDB User)
.