| Title | Netcore NR268 Router NR268-V1.7.121109.bin Improper Authentication |
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| Description | Boa reads credentials from /tmp/passwd, and user_ok() returns success when that lookup fails. process_header_end() treats any positive user_auth() result as authorized and continues into CGI execution. While /tmp/passwd is missing or malformed, any HTTP Basic header is accepted on the /router/*.cgi surface, including privileged write actions. Representative probes against /router/WebPortSet_show.cgi and /router/WebRemotePortShow.cgi with wrong credentials reach the CGI path instead of returning 401. |
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| Source | ⚠️ https://github.com/draw-ctf/report/blob/main/NR268/2026.09.14-netcore-nr268-boa-auth-fail-open.md |
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| User | nebula (UID 101212) |
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| Submission | 09/14/2026 10:13 (28 days ago) |
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| Moderation | 10/11/2026 16:55 (27 days later) |
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| Status | Accepted |
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| VulDB entry | 416702 [Netcore NR268 1.7.121109 CGI Execution user_ok improper authentication] |
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| Points | 20 |
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