CVE-2023-3972
What it is
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).
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-379
- Record status
- Modified
Affected
- Redhat insights-client < 3.2.2
- Redhat Enterprise Linux 7.0
- Redhat Enterprise Linux 8.0
- Redhat Enterprise Linux 9.0
- Redhat Enterprise Linux Aus 8.6
- Redhat Enterprise Linux Desktop 7.0
- Redhat Enterprise Linux Eus 8.6
- Redhat Enterprise Linux Eus 8.8
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-3972.md and follow it. Check whether this project is affected by CVE-2023-3972. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://access.redhat.com/errata/RHSA-2023:6264
- https://access.redhat.com/errata/RHSA-2023:6282
- https://access.redhat.com/errata/RHSA-2023:6283
- https://access.redhat.com/errata/RHSA-2023:6284
- https://access.redhat.com/errata/RHSA-2023:6795
- https://access.redhat.com/errata/RHSA-2023:6796
- https://access.redhat.com/errata/RHSA-2023:6798
- https://access.redhat.com/errata/RHSA-2023:6811
- https://access.redhat.com/security/cve/CVE-2023-3972
- https://bugzilla.redhat.com/show_bug.cgi?id=2227027
References
- https://access.redhat.com/errata/RHSA-2023:6264
- https://access.redhat.com/errata/RHSA-2023:6282
- https://access.redhat.com/errata/RHSA-2023:6283
- https://access.redhat.com/errata/RHSA-2023:6284
- https://access.redhat.com/errata/RHSA-2023:6795
- https://access.redhat.com/errata/RHSA-2023:6796
- https://access.redhat.com/errata/RHSA-2023:6798
- https://access.redhat.com/errata/RHSA-2023:6811
- https://access.redhat.com/security/cve/CVE-2023-3972
- https://bugzilla.redhat.com/show_bug.cgi?id=2227027
- https://github.com/RedHatInsights/insights-core/pull/3878
- https://access.redhat.com/errata/RHSA-2023:6264
- https://access.redhat.com/errata/RHSA-2023:6282
- https://access.redhat.com/errata/RHSA-2023:6283
- https://access.redhat.com/errata/RHSA-2023:6284
- https://access.redhat.com/errata/RHSA-2023:6795
- https://access.redhat.com/errata/RHSA-2023:6796
- https://access.redhat.com/errata/RHSA-2023:6798
- https://access.redhat.com/errata/RHSA-2023:6811
- https://access.redhat.com/security/cve/CVE-2023-3972
- https://bugzilla.redhat.com/show_bug.cgi?id=2227027
- https://github.com/RedHatInsights/insights-core/pull/3878