ATTACK [PTsecurity] Telnetd Authentication Bypass attempt (CVE-2026-24061)

SID: 10016325Rev: 410 views
History
Sourceptrules/open
CreatedFebruary 11, 2026
UpdatedMay 8, 2026
Classificationattempted-admin
alert tcp any any -> any 23 (msg:"ATTACK [PTsecurity] Telnetd Authentication Bypass attempt (CVE-2026-24061)"; flow:established, to_server; content:"|ff fa 27|"; content:"|00|USER|01|"; distance:0; content:"-f"; distance:0; pcre:"/USER\x01[^\x00\xff]*?-f/"; flowbits:set, Telnetd.exploit.flg; reference:cve, 2026-24061; reference:url, www.opennet.ru/opennews/art.shtml?num=64649; reference:url, rules.ptsecurity.com; classtype:attempted-admin; sid:10016325; rev:4;)

References

cve2026-24061
urlwww.opennet.ru/opennews/art.shtml?num=64649
urlrules.ptsecurity.com

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