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Ssh-Keysign

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medium advisory

Potential Privilege Escalation via SUID/SGID Proxy Execution on Linux

Attackers may exploit SUID/SGID binaries like pkexec, su, or sudo on Linux systems to execute commands with elevated privileges, by identifying instances where a process runs with root privileges (user ID 0 or group ID 0) while the real user or group ID is non-root, allowing a low-privilege foothold to gain full system control.

su +17 privilege-escalation linux-security defense-evasion persistence system-exploitation
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