CVE-2024-56433: Low severity Shadow shadow-utils vulnerability
shadow-utils (aka shadow) 4.4 through 4.17.0 establishes a default /etc/subuid behavior (e.g., uid 100000 through 165535 for the first user account) that can realistically conflict with the uids of users defined on locally administered networks, potentially leading to account takeover, e.g., by leveraging newuidmap for access to an NFS home directory (or same-host resources in the case of remote logins by these local network users). NOTE: it may also be argued that system administrators should not have assigned uids, within local networks, that are within the range that can occur in /etc/subuid.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2024-56433?
CVE-2024-56433 has been classified as a medium severity vulnerability due to the potential risk of account takeover.
How do I fix CVE-2024-56433?
To mitigate CVE-2024-56433, update shadow-utils to version 4.18.0 or later.
What versions of shadow-utils are affected by CVE-2024-56433?
CVE-2024-56433 affects shadow-utils versions 4.4 through 4.17.0.
What is the main issue associated with CVE-2024-56433?
CVE-2024-56433 creates a conflict with user IDs on locally administered networks that may lead to account takeover.
Is CVE-2024-56433 a local or remote vulnerability?
CVE-2024-56433 is considered a local vulnerability as it requires local access to exploit the UID conflicts.