Stack-Based Buffer Overflow in Tenda i21 Products
CVE-2024-4493

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 product version 1.0.0.14, specifically within the formSetAutoPing function. This vulnerability is characterized by a stack-based buffer overflow triggered by improper handling of user-supplied arguments ping1 and ping2. An attacker can exploit this vulnerability remotely, potentially allowing unauthorized access or control over the affected device. Despite prior notifications to the vendor, Tenda has not responded to concerns about this exploit, raising significant risks for users relying on this device in their networks. Immediate attention and mitigation are advised to protect against potential attacks.

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-2024-4493 - Proof of Concept

References

https://vuldb.com/?id.263082
vdb-entrytechnical-description
https://vuldb.com/?ctiid.263082
signaturepermissions-required
https://vuldb.com/?submit.323602
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)
.