Bug 1326598 (CVE-2016-3113)

Summary: CVE-2016-3113 ovirt-engine: Reflected XSS when submitting config file for VNC/SPICE Connection
Product: [Other] Security Response Reporter: Adam Mariš <amaris>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: alonbl, bmcclain, dblechte, eedri, juan.hernandez, lsurette, mgoldboi, michal.skrivanek, nobody, Rhev-m-bugs, srevivo, ykaul
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-08 02:50:39 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1326599, 1326600    
Bug Blocks: 1327166    

Description Adam Mariš 2016-04-13 08:03:27 UTC
An XSS vulnerability was found in ovirt-engine when submitting configuration file used to build up the VNC/SPICE-Connection. The file is automatically generated without any user input on the client side and uploaded to the server, which immediately reflects that upload. Legitimate HTTP Request looks aas following:

POST /ovirt-engine/services/attachment/console.vv

contenttype=application%2Fx-virt-viewer%3B+charset%3DUTF-8&content=[...configuration
file...]&encodingtype=plain

Web application accepts the POST-Parameter contenttype, that sets the Content-Type of the HTTP-Response of the reflected upload. When setting the contenttype to text/html, it allows to inject malicious JavaScript code to be reflected on the page. The attacker could send RPC-Requests via XHR with the privileges of the victim. If the victim is logged in, the attacker can inject a JavaScript code that sends a RPC-Request to start, stop or manipulate a specific VM.

Comment 1 Adam Mariš 2016-04-13 08:03:42 UTC
Acknowledgments:

Name: Dennis Felsch (Ruhr-University Bochum), Emanuel Durmaz (Ruhr-University Bochum)

Comment 2 Adam Mariš 2016-04-13 08:04:27 UTC
Created ovirt-engine-sdk-java tracking bugs for this issue:

Affects: fedora-all [bug 1326599]
Affects: epel-all [bug 1326600]