| Título | LBlink BL-AC3600 1.0.22 Command Injection |
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| Descripción | BL-AC3600
Version 1.0.22
The password modification function lacks content filtering, resulting in a command injection vulnerability.
Technical Analysis:
● v8 is a pointer to the routepwd field
● v9 represents the user-input value
● The strcpy function copies the value of v9 to v37
● easy_uci_set_option_string_0 concatenates "chpasswd.sh root" with v37 and passes it to v36
● The concatenated string is directly executed by the system function
●
Proof of Concept:
1. Craft malicious request packet
2. Observe "Operation Successful" response
3. Successfully establish reverse shell
Vulnerability Validation:
Command injection confirmed through reverse shell acquisition.
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| Fuente | ⚠️ https://github.com/GrayLxton/BLink_poc |
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| Usuario | Gray (UID 84168) |
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| Sumisión | 2025-04-16 21:15 (hace 1 Año) |
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| Moderación | 2025-04-29 07:43 (12 days later) |
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| Estado | Aceptado |
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| Entrada de VulDB | 306513 [LB-LINK BL-AC3600 hasta 1.0.22 Password /cgi-bin/lighttpd.cgi easy_uci_set_option_string_0 routepwd escalada de privilegios] |
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| Puntos | 20 |
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