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).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.2 Telecommunications Update Service | — | — |
| Red Hat | Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Telecommunications Update Service | — | — |
| Red Hat | Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 9.0 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | insights-client | 3.2.2-1.el9_2 | RHSA-2023:6282 |
| RHEL 8 | insights-client | 3.2.2-1.el8_8 | RHSA-2023:6283 |
| RHEL 7 | insights-client | 3.1.9-1.el7_9 | RHSA-2023:6795 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.0 EUS | insights-client | 3.2.2-1.el9_0 | RHSA-2023:6796 |
| RHEL 8.6 EUS | insights-client | 3.2.2-1.el8_6 | RHSA-2023:6284 |
| RHEL 8.4 TUS | insights-client | 3.2.3-1.el8_4 | RHSA-2023:6798 |
| RHEL 8.4 E4S | insights-client | 3.2.3-1.el8_4 | RHSA-2023:6798 |
| RHEL 8.4 AUS | insights-client | 3.2.3-1.el8_4 | RHSA-2023:6798 |
| RHEL 8.2 TUS | insights-client | 3.2.3-1.el8_2 | RHSA-2023:6264 |
| RHEL 8.2 E4S | insights-client | 3.2.3-1.el8_2 | RHSA-2023:6264 |
| RHEL 8.2 AUS | insights-client | 3.2.3-1.el8_2 | RHSA-2023:6264 |
| RHEL 8.1 E4S | insights-client | 3.2.3-1.el8_1 | RHSA-2023:6811 |
Advisories 9
- RHSA-2023:6795 Red Hat Security Advisory: insights-client security update Red Hat Security Advisories (RHSA) · Apr 7, 2026
- RHSA-2023:6798 Red Hat Security Advisory: insights-client security update Red Hat Security Advisories (RHSA) · Apr 7, 2026
- RHSA-2023:6811 Red Hat Security Advisory: insights-client security update Red Hat Security Advisories (RHSA) · Apr 7, 2026
- RHSA-2023:6796 Red Hat Security Advisory: insights-client security update Red Hat Security Advisories (RHSA) · Apr 7, 2026
- RHSA-2023:6284 Red Hat Security Advisory: insights-client security update Red Hat Security Advisories (RHSA) · Apr 7, 2026
- RHSA-2023:6282 Red Hat Security Advisory: insights-client security update Red Hat Security Advisories (RHSA) · Apr 7, 2026
- RHSA-2023:6283 Red Hat Security Advisory: insights-client security update Red Hat Security Advisories (RHSA) · Apr 7, 2026
- RHSA-2023:6264 Red Hat Security Advisory: insights-client security update Red Hat Security Advisories (RHSA) · Apr 7, 2026
- WID-SEC-2023-2815 Red Hat Enterprise Linux: Schwachstelle ermöglicht Privilegieneskalation BSI CERT-Bund (WID) · Nov 8, 2023
References
- RHSA-2023:6264 vendor-advisory
- RHSA-2023:6282 vendor-advisory
- RHSA-2023:6283 vendor-advisory
- RHSA-2023:6284 vendor-advisory
- RHSA-2023:6795 vendor-advisory
- RHSA-2023:6796 vendor-advisory
- RHSA-2023:6798 vendor-advisory
- RHSA-2023:6811 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2023-3972 vdb-entry
- RHBZ#2227027 issue-tracking
- https://github.com/RedHatInsights/insights-core/pull/3878