| Title | D-Link DIR‑817L Firmware version <= Firmware v1.04B01 RCE |
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| Description | The program obtains environment variable parameters through `getenv`, and only filters backquote characters, without effectively restricting other special symbols that may trigger command execution. An attacker can construct a string similar to `ssdp:all+command` to inject malicious content into the parameters passed to the `lxmldbc_system` function. Because the function uses `sprintf` to splice the command string and executes it through `system`, it eventually leads to a command injection vulnerability, which allows an attacker to achieve remote code execution. This can then achieve malicious attacks such as rebound shells. |
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| Source | ⚠️ https://github.com/Patr1ck-S/Patr1ck-S.github.io/blob/main/D-Link%20DIR%E2%80%91817L%20has%20a%20remote%20arbitrary%20command%20execution%20vulnerability%20in%20ssdpcgi(1).md |
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| User | Patr1ck (UID 88121) |
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| Submission | 07/19/2025 13:45 (12 months ago) |
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| Moderation | 07/21/2025 08:31 (2 days later) |
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| Status | Accepted |
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| VulDB entry | 317061 [D-Link DIR‑817L up to 1.04B01 ssdpcgi lxmldbc_system command injection] |
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| Points | 20 |
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