CVE-2017-18104 : Exploit Details and Defense Strategies
Learn about CVE-2017-18104, a security flaw in Atlassian Jira Webhooks feature allowing remote attackers to access restricted issue change information. Find mitigation steps and preventive measures here.
CVE-2017-18104, published on July 24, 2018, addresses a vulnerability in the Webhooks feature of Atlassian Jira versions prior to 7.6.7 and from 7.7.0 to 7.11.0. This vulnerability could allow remote attackers to access issue change information that should have been restricted.
Understanding CVE-2017-18104
This CVE entry highlights a security flaw in Atlassian Jira that could lead to information exposure.
What is CVE-2017-18104?
The vulnerability in the Webhooks component of Atlassian Jira allows remote attackers to obtain issue change details that should have been excluded based on a specified JQL query.
The Impact of CVE-2017-18104
The vulnerability enables unauthorized access to sensitive issue information, potentially compromising the confidentiality of data within Jira instances.
Technical Details of CVE-2017-18104
This section delves into the specifics of the vulnerability.
Vulnerability Description
The Webhooks feature in Atlassian Jira versions prior to 7.6.7 and from 7.7.0 to 7.11.0 permits remote attackers to gather issue change data not intended for transmission.
Affected Systems and Versions
- Product: Jira
- Vendor: Atlassian
- Vulnerable Versions:
- Versions less than 7.6.7
- Version 7.7.0
- Versions less than 7.11.0
Exploitation Mechanism
Attackers can exploit this vulnerability by intercepting webhook events to access issue changes not included in the results of a specified JQL query.
Mitigation and Prevention
Protecting systems from CVE-2017-18104 involves immediate actions and long-term security practices.
Immediate Steps to Take
- Upgrade Jira to version 7.6.7 or above to mitigate the vulnerability.
- Monitor and restrict access to webhook events to prevent unauthorized information disclosure.
Long-Term Security Practices
- Regularly review and update JQL queries to ensure sensitive information is appropriately restricted.
- Conduct security training for users to raise awareness of potential data exposure risks.
Patching and Updates
- Apply security patches provided by Atlassian promptly to address vulnerabilities and enhance system security.