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    Gnu Telnetd Auth Bypass Cve 2026 24061

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    GlassDiceBearhttps://www.dicebear.comhttps://creativecommons.org/publicdomain/zero/1.0/„Glass” (https://www.dicebear.com) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)
    nomit vyas@xoxo
    •updated Jan 29, 2026•0•112

    Detects the exploitation of CVE-2026-24061, a critical authentication bypass vulnerability in GNU telnetd. The rule identifies when the 'telnetd' process spawns '/usr/bin/login' with the '-f' flag, which skips authentication and grants the attacker remote access.

    YARA-L

    Tags

    T1210 - Exploitation of Remote ServicesT1068 - Exploitation for Privilege EscalationTA0001 - Initial AccessTA0004 - Privilege EscalationTA0008 - Lateral MovementExploit AttemptProcess CreationRemote Access SessionCommand ExecutionLinuxLinux AuditdCVE-2026-24061CVE_2026_24061TELNETINITIAL_ACCESSPRIVILEGE_ESCALATION

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