SB2019050605 - Multiple vulnerabilities in Atlassian Jira
Published: May 6, 2019 Updated: September 25, 2019
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Cross-site scripting (CVE-ID: CVE-2018-20824)
The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via the cyclePeriod parameter to WallboardServlet resource. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Example:
http://[host]/plugins/servlet/Wallboard/?dashboardId=10102&dashboardId=10103&cyclePeriod=(function(){alert(document.cookie);return%2030000;})()&transitionFx=fadeZoom&random=false 2) Cross-site scripting (CVE-ID: CVE-2018-20827)
The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists in the activity stream gadget due to insufficient sanitization of user-supplied data in the "country" parameter. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Remediation
Install update from vendor's website.