CVE-2019-3681 Explained : Impact and Mitigation
Learn about CVE-2019-3681, a high-severity vulnerability in osc component of SUSE Linux Enterprise and openSUSE, allowing remote attackers to overwrite files. Find mitigation steps and patching details here.
A vulnerability in the osc component of SUSE Linux Enterprise Module for Development Tools 15, SUSE Linux Enterprise Software Development Kit 12-SP5, SUSE Linux Enterprise Software Development Kit 12-SP4; openSUSE Leap 15.1, openSUSE Factory enables remote attackers to overwrite arbitrary files in downloaded packages.
Understanding CVE-2019-3681
This CVE involves a vulnerability in the osc component of various SUSE and openSUSE products, allowing remote attackers to manipulate downloaded packages.
What is CVE-2019-3681?
CVE-2019-3681 is a vulnerability that affects osc versions in multiple SUSE and openSUSE products, enabling attackers to modify downloaded packages and overwrite files.
The Impact of CVE-2019-3681
The vulnerability has a CVSS base score of 7.5, indicating a high severity level. It can lead to remote attackers compromising the integrity, confidentiality, and availability of affected systems without requiring privileges.
Technical Details of CVE-2019-3681
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The osc component in SUSE and openSUSE products allows remote attackers to overwrite arbitrary files by manipulating downloaded packages.
Affected Systems and Versions
- SUSE Linux Enterprise Module for Development Tools 15: osc versions prior to 0.169.1-3.20.1
- SUSE Linux Enterprise Software Development Kit 12-SP5: osc versions prior to 0.162.1-15.9.1
- SUSE Linux Enterprise Software Development Kit 12-SP4: osc versions prior to 0.162.1-15.9.1
- openSUSE Leap 15.1: osc versions prior to 0.169.1-lp151.2.15.1
- openSUSE Factory: osc versions prior to 0.169.0
Exploitation Mechanism
The vulnerability allows remote attackers to modify downloaded packages, potentially leading to the overwrite of arbitrary files on the system.
Mitigation and Prevention
To address CVE-2019-3681, follow these mitigation strategies:
Immediate Steps to Take
- Update osc to the patched versions specified for each affected product.
- Monitor for any unauthorized file modifications.
Long-Term Security Practices
- Regularly update software components to the latest versions.
- Implement network security measures to detect and prevent unauthorized access.
Patching and Updates
- Apply the patches provided by SUSE and openSUSE to fix the vulnerability.