CVE-2020-4014 : Exploit Details and Defense Strategies
Learn about CVE-2020-4014 affecting Atlassian Fisheye and Crucible versions before 4.8.1, enabling remote attackers to manipulate user settings via an improper authorization vulnerability. Find mitigation steps and best practices for enhanced security.
CVE-2020-4014 was published on April 21, 2020, by Atlassian. It affects Crucible and Fisheye versions prior to 4.8.1, allowing remote attackers to manipulate user settings through an improper authorization vulnerability.
Understanding CVE-2020-4014
This CVE involves an improper authorization issue in Atlassian Fisheye and Crucible, impacting versions before 4.8.1.
What is CVE-2020-4014?
The vulnerability in /profile/deleteWatch.do in Atlassian Fisheye and Crucible before version 4.8.1 enables remote attackers to modify another user's repository watching settings due to improper authorization.
The Impact of CVE-2020-4014
The vulnerability poses a risk of unauthorized access and manipulation of user settings, potentially leading to data breaches and unauthorized actions within the affected systems.
Technical Details of CVE-2020-4014
This section provides more technical insights into the CVE.
Vulnerability Description
The /profile/deleteWatch.do resource in Atlassian Fisheye and Crucible before version 4.8.1 allows remote attackers to remove another user's watching settings for a repository via an improper authorization vulnerability.
Affected Systems and Versions
- Product: Crucible
- Vendor: Atlassian
- Versions Affected: Less than 4.8.1 (unspecified/custom)
- Product: Fisheye
- Vendor: Atlassian
- Versions Affected: Less than 4.8.1 (unspecified/custom)
Exploitation Mechanism
The vulnerability can be exploited remotely by attackers to manipulate user settings without proper authorization, potentially leading to unauthorized access and data breaches.
Mitigation and Prevention
To address CVE-2020-4014, follow these mitigation steps:
Immediate Steps to Take
- Upgrade affected systems to version 4.8.1 or higher.
- Monitor user settings and access for any unauthorized changes.
Long-Term Security Practices
- Regularly review and update access control policies.
- Conduct security training to raise awareness of proper authorization practices.
Patching and Updates
- Apply patches and updates provided by Atlassian promptly to fix the vulnerability and enhance system security.