SB2023031639 - Multiple vulnerabilities in TP-Link Archer AX21

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Stack-based buffer overflow (CVE-ID: CVE-2023-27333)

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the handling of command 0x422 provided to the tmpServer service. A remote administrator on the local network can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Stack-based buffer overflow (CVE-ID: CVE-2023-27332)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the logging functionality of the tdpServer program. A remote unauthenticated on the local network attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• https://www.zerodayinitiative.com/advisories/ZDI-23-244/
• https://www.tp-link.com/us/support/download/archer-ax21/#Firmware
• https://www.zerodayinitiative.com/advisories/ZDI-23-245/