CVE Alert: CVE-2025-32463 – Sudo project – Sudo

Risk verdict

Why this matters

Most likely attack path

Who is most exposed

Detection ideas

• Monitor for sudo invocations with –chroot referencing user-writable paths or unexpected changes to /etc/nsswitch.conf in such directories.
• Look for sudden spikes in root-equivalent processes or shells spawned from non-root accounts.
• Validate installed sudo versions across hosts; flag any not at or beyond the patched 1.9.17p1 release.
• Inspect audit logs for anomalous chroot-based sudo usage or privilege escalations.
• Watch for modifications to privileged configuration files outside standard OS paths.

Mitigation and prioritisation

• Apply vendor patch to 1.9.17p1 or newer on all affected systems; verify patch success.
• Restrict or remove use of –chroot in sudo configurations; ensure /etc/nsswitch.conf cannot be sourced from user-writable directories.
• Implement strict access controls for directories used in chroot contexts; remove unnecessary sudo privileges via sudoers.
• Deploy тестing and change-management steps before broad rollout; plan a rapid patch window due to exploitation activity.
• Enhance monitoring and endpoint hardening (AppArmor/SELinux policies, root-claim isolation) to detect and contain post-exploit activity.