D-Link DAP-2622 NTP Server stack-based overflow

Summaryinfo

A vulnerability was found in D-Link DAP-2622. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the component NTP Server. The manipulation results in stack-based overflow. This vulnerability is reported as CVE-2023-35757. The attacker must have access to the local network to execute the attack. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in D-Link DAP-2622 (version now known). It has been classified as critical. Affected is some unknown processing of the component NTP Server. 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:

D-Link DAP-2622 DDP Set Date-Time NTP Server Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2622 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the DDP service. 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-20085.

The advisory is shared for download at zerodayinitiative.com. This vulnerability is traded as CVE-2023-35757 since 06/15/2023. The exploitability is told to be easy. Access to the local network is required for this attack to succeed. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 05/19/2025).

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

• D-Link

Name

• DAP-2622

License

• commercial

Website

• Vendor: https://www.dlink.com/

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Entryinfo

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