Stack-based Buffer Overflow Vulnerability in Tenda i21
CVE-2024-4496

8.8HIGH

Key Information:

Vendor
Tenda
Status
I21
Vendor
CVE Published:
5 May 2024

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A significant vulnerability in the Tenda i21 router has been identified that can lead to a stack-based buffer overflow. This flaw is associated with the function 'formWifiMacFilterSet', where manipulation of the 'ssidIndex' argument creates an exploitable condition. The vulnerability allows for remote execution and has been publicly disclosed, raising concerns over the security of devices utilizing this firmware version. Users are urged to be aware of the potential risks and the necessity of applying appropriate security measures.

Affected Version(s)

i21 1.0.0.14(4656)

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-2024-4496 - Proof of Concept

References

https://vuldb.com/?id.263085
vdb-entrytechnical-description
https://vuldb.com/?ctiid.263085
signaturepermissions-required
https://vuldb.com/?submit.323606
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

Credit

yhryhryhr_miemie (VulDB User)
.