CVE-2021-41310 : What You Need to Know
Learn about CVE-2021-41310, a Cross-Site Scripting (XSS) vulnerability in Atlassian Jira Server and Data Center versions, enabling remote code injection. Find mitigation steps and preventive measures here.
Atlassian Jira Server and Data Center versions are vulnerable to a Cross-Site Scripting (XSS) flaw, allowing remote attackers to inject malicious code through the Associated Projects feature.
Understanding CVE-2021-41310
This CVE identifies a Stored Cross-Site Scripting (SXSS) vulnerability in Atlassian Jira Server and Data Center versions that could lead to arbitrary code injection.
What is CVE-2021-41310?
The vulnerability in Atlassian Jira Server and Data Center versions allows anonymous remote attackers to execute arbitrary HTML or JavaScript through a Cross-Site Scripting (XSS) issue in the Associated Projects feature.
The Impact of CVE-2021-41310
The vulnerability can be exploited by attackers to inject malicious code, potentially leading to data theft, unauthorized actions, and overall security risks within affected systems.
Technical Details of CVE-2021-41310
This section covers specific technical details regarding the CVE.
Vulnerability Description
Atlassian Jira Server and Data Center versions are susceptible to stored Cross-Site Scripting (SXSS) attacks via the Associated Projects feature, enabling attackers to execute malicious scripts remotely.
Affected Systems and Versions
- Atlassian Jira Server versions before 8.5.19, between 8.6.0 and 8.13.11, and between 8.14.0 and 8.19.1
- Atlassian Jira Data Center versions matching the affected Jira Server versions
Exploitation Mechanism
The vulnerability arises due to improper handling of user-controlled data in the Associated Projects feature, leading to the execution of arbitrary code by attackers.
Mitigation and Prevention
Protect your systems from CVE-2021-41310 by following these mitigation steps:
Immediate Steps to Take
- Update Atlassian Jira Server and Data Center to the latest patched versions.
- Implement strict input validation to sanitize user-provided content.
- Monitor and filter user inputs for suspicious characters and scripts.
Long-Term Security Practices
- Regularly educate users on secure coding practices and the risks of XSS vulnerabilities.
- Conduct security assessments and audits to identify and address potential vulnerabilities.
Patching and Updates
- Apply security patches and updates provided by Atlassian promptly to address the vulnerability and enhance system security.