What is CVE-2024-56433?

CVE-2024-56433 is a low-severity vulnerability in Shadow-Maint Shadow-Utils, classified under Initialization of a Resource with an Insecure Default. CVSS score: 3.6/10. Published 2024-12-26.

How severe is CVE-2024-56433?

Low severity. CVSS v3 base score is 3.6 out of 10.

Is CVE-2024-56433 known to be exploited?

10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Shadow-Maint Shadow-Utils

CVE-2024-56433

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.

EPSS: 0.004 (36.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.6 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Shadow-maint Shadow-utils — versions 4.4

Weakness classification (CWE)

CWE-1188 — Initialization of a Resource with an Insecure Default

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-56433?: CVE-2024-56433 is a low-severity vulnerability in Shadow-Maint Shadow-Utils, classified under Initialization of a Resource with an Insecure Default. CVSS score: 3.6/10. Published 2024-12-26.
How severe is CVE-2024-56433?: Low severity. CVSS v3 base score is 3.6 out of 10.
Is CVE-2024-56433 known to be exploited?: 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.