| Title | D-Link Router DWR-M920 B2 V1.1.70 Command Injection |
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| Description | A vulnerability was found in D-Link DWR-M920 V1.1.7. This vulnerability can be triggered through the route /boafrm/formPinManageSetup. The manipulation of the argument newPin leads to OS command injection. The sub_41E60C function retrieves the newPin parameter from the user request and passes it to sprintf without sanitization; the resulting string is passed to system(), allowing an authenticated attacker to execute arbitrary commands as root by closing the enclosing single quote (e.g. newPin=1';echo PWNED>/web/pwn.txt;'). Exploitation requires an authenticated session (webuicookie) and the operationName parameter set to setPin; newPin is limited to 33 bytes. The attack is possible remotely and may lead to full device compromise. |
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| Source | ⚠️ https://github.com/H3rmesk1t/vulnerability-paper/issues/9 |
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| User | H3rmesk1t (UID 70306) |
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| Submission | 08/05/2026 17:25 (1 month ago) |
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| Moderation | 09/13/2026 07:24 (1 month later) |
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| Status | Accepted |
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| VulDB entry | 403232 [D-Link DWR-M920 1.1.7 formPinManageSetup sub_41E60C newPin os command injection] |
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| Points | 20 |
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