CVE-2019-8451 Explained : Impact and Mitigation
Learn about CVE-2019-8451 affecting Jira versions prior to 8.4.0. Understand the SSRF vulnerability, its impact, affected systems, exploitation, and mitigation steps.
Jira before version 8.4.0 is affected by a Server Side Request Forgery (SSRF) vulnerability that allows remote attackers to access internal network resources.
Understanding CVE-2019-8451
What is CVE-2019-8451?
The vulnerability in Jira's /plugins/servlet/gadgets/makeRequest resource prior to version 8.4.0 enables SSRF, granting unauthorized access to internal network content.
The Impact of CVE-2019-8451
The SSRF flaw poses a significant security risk as it allows attackers to retrieve sensitive information from internal resources, potentially leading to unauthorized access and data breaches.
Technical Details of CVE-2019-8451
Vulnerability Description
The vulnerability arises from a logic error in the JiraWhitelist class, allowing attackers to exploit the /plugins/servlet/gadgets/makeRequest resource.
Affected Systems and Versions
- Product: Jira
- Vendor: Atlassian
- Versions Affected: < 8.4.0
Exploitation Mechanism
Attackers can manipulate the SSRF vulnerability to send crafted requests through the /plugins/servlet/gadgets/makeRequest resource, tricking the server into accessing internal network resources.
Mitigation and Prevention
Immediate Steps to Take
- Update Jira to version 8.4.0 or later to mitigate the SSRF vulnerability.
- Implement network segmentation to restrict access to sensitive resources.
Long-Term Security Practices
- Regularly monitor and audit network traffic for suspicious activities.
- Educate users on the risks of clicking on untrusted links or accessing unknown resources.
Patching and Updates
Apply security patches and updates provided by Atlassian to address vulnerabilities and enhance system security.