Description
Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf from a user-controlled directory is used with the --chroot option.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Sudo project / Sudo1.9.14 – 1.9.17p1
Exploits & proofs of concept
- nucleiSudo - Local Privilege Escalation via chrootby SeungAh-Hong
References
- VENDOR_ADVISORYhttps://www.sudo.ws/security/advisories/
- MISChttps://www.sudo.ws/releases/changelog/
- MISChttps://www.stratascale.com/vulnerability-alert-CVE-2025-32463-sudo-chroot
- MAILING_LISThttps://www.openwall.com/lists/oss-security/2025/06/30/3
- VENDOR_ADVISORYhttps://access.redhat.com/security/cve/cve-2025-32463
- VENDOR_ADVISORYhttps://ubuntu.com/security/notices/USN-7604-1
- VENDOR_ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2025-32463
- MISChttps://explore.alas.aws.amazon.com/CVE-2025-32463.html
- MISChttps://bugs.gentoo.org/show_bug.cgi?id=CVE-2025-32463
- MISChttps://www.suse.com/support/update/announcement/2025/suse-su-202502177-1/
- MISChttps://www.suse.com/security/cve/CVE-2025-32463.html
- MISChttps://www.secpod.com/blog/sudo-lpe-vulnerabilities-resolved-what-you-need-to-know-about-cve-2025-32462-and-cve-2025-32463/
- VENDOR_ADVISORYhttps://www.sudo.ws/security/advisories/chroot_bug/
- MISChttps://www.vicarius.io/vsociety/posts/cve-2025-32463-detect-sudo-vulnerability
- MISChttps://www.vicarius.io/vsociety/posts/cve-2025-32463-mitigate-sudo-vulnerability