Stack-based Buffer Overflow in Tenda AC500
CVE-2024-3909

9.8CRITICAL

Key Information:

Vendor
Tenda
Status
Ac500
Vendor
CVE Published:
17 April 2024

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A critical stack-based buffer overflow vulnerability exists in the Tenda AC500, specifically within the function formexeCommand in the file /goform/execCommand. This flaw allows an attacker to manipulate the cmdinput argument, potentially leading to unauthorized control and execution of arbitrary code. The vulnerability can be exploited remotely, allowing attackers to compromise affected systems without physical access. Despite early notification to Tenda regarding this flaw, there has been no response or guidance, emphasizing the urgency for users to implement immediate security measures. Users are strongly advised to monitor for updates and mitigate risks associated with this vulnerability.

Affected Version(s)

AC500 2.0.1.9(1307)

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-2024-3909 - Proof of Concept

References

https://vuldb.com/?id.261145
vdb-entrytechnical-description
https://vuldb.com/?ctiid.261145
signaturepermissions-required
https://vuldb.com/?submit.313804
third-party-advisory

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
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

Credit

yhryhryhr_tu (VulDB User)
.