Privilege Escalation via PID File Manipulation in MIMEDefang 2.80 and Earlier

CVE-2017-14102 · MEDIUM Severity

AV:L/AC:L/AU:N/C:P/I:P/A:P

MIMEDefang 2.80 and earlier creates a PID file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for PID file modification before a root script executes a "kill `cat /pathname`" command, as demonstrated by the init-script.in and mimedefang-init.in scripts.

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