ATTACK [PTsecurity] Successful CitrixBleed2 Memory Leak Exploitation (CVE-2025-5777)

SID: 10014244Rev: 129 viewsHistory

Sourceptrules/open

CreatedJuly 24, 2025

UpdatedJuly 24, 2025

Classificationsuccessful-admin

alert http any any -> any any (msg:"ATTACK [PTsecurity] Successful CitrixBleed2 Memory Leak Exploitation (CVE-2025-5777)"; flow:established, from_server; http.response_body; content:"<InitialValue>"; fast_pattern; pcre:"/^.*?[\x01-\x1F\x7F-\xFF].*?<\/InitialValue>/QR"; flowbits:isset, CitrixBleed2.Attempt; threshold:type limit, track by_dst, count 1, seconds 60; reference:cve, 2025-5777; reference:url, horizon3.ai/attack-research/attack-blogs/cve-2025-5777-citrixbleed-2-write-up-maybe/; reference:url, github.com/win3zz/CVE-2025-5777; reference:url, rules.ptsecurity.com; classtype:successful-admin; sid:10014244; rev:1;)

References

cve	2025-5777
url	horizon3.ai/attack-research/attack-blogs/cve-2025-5777-citrixbleed-2-write-up-maybe/
url	github.com/win3zz/CVE-2025-5777
url	rules.ptsecurity.com

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