ATTACK [PTsecurity] Likely Apache HTTP Server 2.4.49 Directory Traversal (CVE-2021-41773)
Sourceptrules/open
CreatedJuly 24, 2025
UpdatedJuly 24, 2025
Classificationattempted-admin
alert http any any -> any any (msg:"ATTACK [PTsecurity] Likely Apache HTTP Server 2.4.49 Directory Traversal (CVE-2021-41773)"; flow:established, to_server; content:"%2e/"; nocase; http_raw_uri; pcre:"/\/(\.|%2e)%2e\//Ii"; threshold:type limit, track by_src, count 1, seconds 60; reference:cve, 2021-41773; reference:url, twitter.com/lofi42/status/1445382059640434695; reference:url, rules.ptsecurity.com; classtype:attempted-admin; sid:10006811; rev:2;)
References
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