CVE-2020-15012 : Vulnerability Insights and Analysis
Learn about CVE-2020-15012, a Directory Traversal issue in Sonatype Nexus Repository Manager 2.x before 2.14.19, allowing unauthorized access to disk content. Find mitigation steps and preventive measures here.
A Directory Traversal issue in Sonatype Nexus Repository Manager 2.x before 2.14.19 allows users to access content on disk by crafting a specific path.
Understanding CVE-2020-15012
This CVE involves a vulnerability in Sonatype Nexus Repository Manager 2.x that enables a user to traverse up the file system and gain access to disk content.
What is CVE-2020-15012?
This CVE identifies a Directory Traversal flaw in Sonatype Nexus Repository Manager 2.x versions prior to 2.14.19. By manipulating the path, a user can navigate beyond authorized directories.
The Impact of CVE-2020-15012
The vulnerability permits unauthorized access to sensitive files on the disk, potentially leading to data exposure or manipulation by malicious actors.
Technical Details of CVE-2020-15012
This section delves into the specifics of the vulnerability.
Vulnerability Description
The flaw in Sonatype Nexus Repository Manager 2.x allows users to request a crafted path, enabling them to move upwards in the file system and access content on the disk.
Affected Systems and Versions
- Affected Systems: Sonatype Nexus Repository Manager 2.x
- Vulnerable Versions: Before 2.14.19
Exploitation Mechanism
By manipulating the path in the request, an attacker can traverse directories and access files on the disk that the user running nxrm has permissions to access.
Mitigation and Prevention
Protecting systems from this vulnerability requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Sonatype Nexus Repository Manager to version 2.14.19 or newer to mitigate the Directory Traversal issue.
- Monitor and restrict user access to sensitive directories to prevent unauthorized traversal.
Long-Term Security Practices
- Implement proper input validation to prevent malicious path manipulation.
- Regularly audit and review file system permissions to limit unauthorized access.
Patching and Updates
- Apply security patches promptly to address known vulnerabilities and enhance system security.