CVE-2024-35235
Description
A flaw was found in the cupsd server. When starting the cupsd server with a Listen configuration item pointing to a symbolic link, the cupsd process can perform an arbitrary chmod of the provided argument, providing world-writable access to the target. Since cupsd is often running as root, this issue can result in the change of permission of any user or system files to be world writable.
Statement
The CVE-2024-35235 vulnerability is classified as moderate severity rather than important primarily due to its requirement for elevated privileges and specific preconditions for exploitation. The vulnerability necessitates the ability to edit the cupsd.conf file, which typically requires administrative access. Furthermore, successful exploitation hinges on creating a symbolic link in a writable directory and manipulating the Listen directive within cupsd.conf. While this can lead to arbitrary chmod operations and potentially compromise system files, the precondition of administrative access significantly reduces the likelihood of exploitation by unauthorized users, thereby mitigating the overall impact and severity of the issue.
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 | 4.4 | 6.7 | N/A |
| Attack Vector | Local | Local | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | High | High | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | High | High | N/A |
| Integrity Impact | None | High | N/A |
| Availability Impact | None | High | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
NVD: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Confidentiality,Integrity
Technical Impact: Read Application Data; Modify Application Data
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
