Buffer Overflow Vulnerability in Tenda i21 Device
CVE-2024-4497

8.8HIGH

Key Information:

Vendor
Tenda
Status
I21
Vendor
CVE Published:
5 May 2024

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A critical vulnerability has been identified in the Tenda i21 router, specifically in version 1.0.0.14. This security flaw is associated with the 'formexeCommand' function where improper handling of the 'cmdinput' argument can lead to a stack-based buffer overflow. Attackers can exploit this vulnerability remotely, potentially allowing them to execute arbitrary code on the affected device. Despite the early notification of the vulnerability to the vendor, Tenda has not provided any response. Users of the Tenda i21 should take immediate precautions to secure their systems against potential exploitation.

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-2024-4497 - Proof of Concept

References

https://vuldb.com/?id.263086
vdb-entrytechnical-description
https://vuldb.com/?ctiid.263086
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https://vuldb.com/?submit.323607
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)
.