A vulnerability classified as critical has been found in LB-LINK BL-AC3600 up to 1.0.22. This affects the function easy_uci_set_option_string_0 of the file /cgi-bin/lighttpd.cgi of the component Password Handler. The manipulation of the argument routepwd leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
| Link | Tags |
|---|---|
| https://vuldb.com/?id.306513 | vdb entry technical description |
| https://vuldb.com/?ctiid.306513 | signature permissions required |
| https://vuldb.com/?submit.560232 | third party advisory |
| https://github.com/GrayLxton/BLink_poc | exploit |
| https://github.com/GrayLxton/BLink_poc/blob/main/poc.py | exploit |