Vulnerability disclosure: exposed CGI script and TLS misconfiguration on tb.aixblock.io #204
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…tion on tb.aixblock.io
Takiass
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Description:
This pull request adds a security disclosure documenting a publicly accessible CGI script (printenv.pl) found on the subdomain tb.aixblock.io. The script leaks sensitive environment variables such as internal paths, server software versions, and other system details that could aid an attacker in reconnaissance or further exploitation.
Additionally, this report covers a TLS certificate misconfiguration where the certificate does not match the domain name, potentially allowing man-in-the-middle attacks.
Details:
Exposed environment variables and server details via /cgi-bin/printenv.pl
Server software identified: Apache/2.4.58, OpenSSL/3.1.3, PHP/8.0.30, XAMPP on Windows
TLS certificate missing tb.aixblock.io in SAN field, causing SSL verification failures
Recommendations include removing or restricting access to the CGI script, disabling CGI if not needed, and reissuing a valid TLS certificate.
Please review and consider this disclosure for inclusion in the security advisories or documentation.