CVE-2017-5983 : Security Advisory and Response
Learn about CVE-2017-5983 affecting Atlassian JIRA Server. This vulnerability allows attackers to execute code, access files, or disrupt services. Find mitigation steps here.
The JIRA Workflow Designer Plugin in Atlassian JIRA Server version prior to 6.3.0 has a vulnerability in its XML parser and deserializer, allowing attackers to execute arbitrary code, access files, or disrupt services.
Understanding CVE-2017-5983
What is CVE-2017-5983?
The CVE-2017-5983 vulnerability is present in the JIRA Workflow Designer Plugin in Atlassian JIRA Server before version 6.3.0. It stems from an issue in the XML parser and deserializer, enabling malicious actors to execute code, read files, or cause service denial using a specially crafted serialized Java object.
The Impact of CVE-2017-5983
Exploiting this vulnerability can lead to severe consequences:
- Execution of unauthorized code
- Access to arbitrary files
- Service disruption
Technical Details of CVE-2017-5983
Vulnerability Description
The JIRA Workflow Designer Plugin in Atlassian JIRA Server before 6.3.0 improperly utilizes an XML parser and deserializer, allowing remote attackers to execute arbitrary code, read files, or cause denial of service through a crafted serialized Java object.
Affected Systems and Versions
- Affected Product: Not applicable
- Affected Vendor: Not applicable
- Affected Version: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by attackers through a specially crafted serialized Java object, enabling them to execute code, access files, or disrupt services.
Mitigation and Prevention
Immediate Steps to Take
- Upgrade Atlassian JIRA Server to version 6.3.0 or later to mitigate the vulnerability.
- Monitor for any unauthorized access or unusual activities on the system.
Long-Term Security Practices
- Regularly update and patch software to address known vulnerabilities.
- Implement network segmentation and access controls to limit the attack surface.
- Educate users and administrators about safe computing practices.
Patching and Updates
Ensure timely installation of security patches and updates provided by Atlassian to protect systems from potential exploits.