CVE-2018-12477 : Vulnerability Insights and Analysis

Open Build Service has a vulnerability known as "Improper Neutralization of CRLF Sequences" that can be exploited by remote attackers. By tricking the obs-service-refresh_patches, they can cause the deletion of directories. This vulnerability affects versions of openSUSE Open Build Service that are older than d6244245dda5367767efc989446fe4b5e4609cce.

Understanding CVE-2018-12477

Open Build Service vulnerability allowing remote attackers to delete directories by manipulating obs-service-refresh_patches.

What is CVE-2018-12477?

CVE-2018-12477 is a vulnerability in Open Build Service that enables remote attackers to delete directories by exploiting obs-service-refresh_patches.

The Impact of CVE-2018-12477

CVSS Base Score: 3.5 (Low)
Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: Required
Integrity Impact: Low
This vulnerability does not have an availability impact or affect confidentiality.

Technical Details of CVE-2018-12477

Open Build Service vulnerability details.

Vulnerability Description

The vulnerability is categorized as CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection').

Affected Systems and Versions

Product: Open Build Service
Vendor: openSUSE
Affected Version: Unspecified, versions older than d6244245dda5367767efc989446fe4b5e4609cce

Exploitation Mechanism

Remote attackers can exploit obs-service-refresh_patches to delete directories.

Mitigation and Prevention

Steps to mitigate and prevent CVE-2018-12477.

Immediate Steps to Take

Update Open Build Service to a version newer than d6244245dda5367767efc989446fe4b5e4609cce.
Monitor and restrict access to obs-service-refresh_patches.

Long-Term Security Practices

Regularly update and patch Open Build Service to address security vulnerabilities.
Conduct security training to educate users on safe practices.

Patching and Updates

Apply patches and updates provided by openSUSE to fix the vulnerability.