CVE-2023-3972

HIGH
MEDIUM Priority: 0.02 BB Relevance: 41/100
Published: 2023-11-01 Modified: 2026-11-07 First seen: 2026-11-07 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

Description

A vulnerability was found in insights-client. This security issue occurs because of insecure file operations or unsafe handling of temporary files and directories that lead to local privilege escalation. Before the insights-client has been registered on the system by root, an unprivileged local user or attacker could create the /var/tmp/insights-client directory (owning the directory with read, write, and execute permissions) on the system. After the insights-client is registered by root, an attacker could then control the directory content that insights are using by putting malicious scripts into it and executing arbitrary code as root (trivially bypassing SELinux protections because insights processes are allowed to disable SELinux system-wide).

References & Advisories (11)

https://access.redhat.com/errata/RHSA-2023:6264
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2023:6282
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2023:6283
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2023:6284
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2023:6795
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2023:6796
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2023:6798
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2023:6811
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2227027
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

41 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.27%
Raw Score 0.002710
Percentile 19.7%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00271
2026-11-12
0.00271
2026-11-10
0.00271
2026-11-09
0.00271
2026-11-08
0.00271
2026-11-07
0.00271
2026-11-06
0.00271

Intelligence Sources

mitre ref →
nvd ref →