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CVE-2021-43722

Description

D-Link DIR-645 1.03 A1 is vulnerable to Buffer Overflow. The hnap_main function in the cgibin handler uses sprintf to format the soapaction header onto the stack and has no limit on the size.

POC

Reference

- https://github.com/luqiut/iot/blob/main/DIR-645%20Stack%20overflow.md

- https://www.dlink.com/en/security-bulletin/

Github

No PoCs found on GitHub currently.