CVE-2024-23301
Description
A vulnerability has been identified in Relax-and-Recover (ReaR), where the use of GRUB_RESCUE=y results in the creation of an initrd that is readable by anyone. This flaw could potentially enable local attackers to obtain access to system secrets that are typically restricted to root privileges.
Statement
A moderate security concern has been identified in Relax-and-Recover (ReaR), particularly when the non-default configuration GRUB_RESCUE=y is used within Red Hat Enterprise Linux (RHEL). This setting results in the creation of a world-readable initrd, potentially providing local attackers an avenue to access system secrets usually restricted to root privileges. It's worth noting that the default initrd created by ReaR does not contain secrets.
Mitigation
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.5 | 5.5 | N/A |
| Attack Vector | Local | Local | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | Low | Low | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | High | High | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | None | None | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Red Hat CVSS v3 Score Explanation
A moderate security concern has been identified in Relax-and-Recover (ReaR), particularly when the non-default configuration GRUB_RESCUE=y is used within Red Hat Enterprise Linux (RHEL). This setting results in the creation of a world-readable initrd, potentially providing local attackers an avenue to access system secrets usually restricted to root privileges. It's worth noting that the default initrd created by ReaR does not contain secrets.
Understanding the Weakness (CWE)
Confidentiality
Technical Impact: Read Application Data
Frequently Asked Questions
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