CVE-2023-3972

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).

• CWE-379
• CWE-668
• CWE-379

• https://access.redhat.com/errata/RHSA-2023:6264Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6282Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6283Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6284Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6795Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6796Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6798Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6811Vendor Advisory
• https://access.redhat.com/security/cve/CVE-2023-3972Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2227027Issue Tracking, Vendor Advisory
• https://github.com/RedHatInsights/insights-core/pull/3878Patch
• https://access.redhat.com/errata/RHSA-2023:6264Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6282Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6283Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6284Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6795Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6796Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6798Vendor Advisory
• https://access.redhat.com/errata/RHSA-2023:6811Vendor Advisory
• https://access.redhat.com/security/cve/CVE-2023-3972Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2227027Issue Tracking, Vendor Advisory
• https://github.com/RedHatInsights/insights-core/pull/3878Patch

Published

Nov 1, 2023

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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