TP-Link Archer AX21 tdpServer stack-based overflow

Summaryinfo

A vulnerability classified as critical was found in TP-Link Archer AX21. This impacts an unknown function of the component tdpServer. The manipulation results in stack-based overflow. This vulnerability is cataloged as CVE-2023-27332. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in TP-Link Archer AX21 (version unknown). It has been classified as critical. Affected is an unknown function of the component tdpServer. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

TP-Link Archer AX21 tdpServer Logging Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer AX21 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the logging functionality of the tdpServer program, which listens on UDP port 20002. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-19898.

The weakness was shared 03/30/2023. The advisory is available at zerodayinitiative.com. This vulnerability is traded as CVE-2023-27332 since 02/28/2023. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/18/2024).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

• TP-Link

Name

• Archer AX21

License

• commercial

Website

• Vendor: https://www.tp-link.com/

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