Bug 1255168 (CVE-2015-5215) - CVE-2015-5215 ipsilon: XSS in multiple pages
Summary: CVE-2015-5215 ipsilon: XSS in multiple pages
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2015-5215
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1255176 1255775
Blocks: 1255174
TreeView+ depends on / blocked
 
Reported: 2015-08-19 20:22 UTC by Kurt Seifried
Modified: 2023-05-12 21:56 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2021-10-21 00:46:55 UTC
Embargoed:

Attachments (Terms of Use)

Description Kurt Seifried 2015-08-19 20:22:05 UTC 
Michael Scherer of Red Hat reports:

ipsilon does not escape HTML when processing templates.
Comment 1 Simo Sorce 2015-08-19 20:35:11 UTC 
Can you please be a little biut more specific ?
As far as I know jinja2 escapes by default and I am not aware that we are using manual escaping anywhere.
Comment 2 Kurt Seifried 2015-08-19 20:35:55 UTC 
Created ipsilon tracking bugs for this issue:

Affects: fedora-all [bug 1255176]
Comment 4 Simo Sorce 2015-08-19 20:43:31 UTC 
Uhm re-reading jinja2 documentation 3 times I finally see they say the escaping is not enabled automatically now :-(
Comment 6 Ilya Etingof 2015-08-24 08:36:01 UTC 
Acknowledgement:

This issue was discovered by Michael Scherer of Red Hat.
Comment 7 Ján Rusnačko 2015-08-24 08:44:41 UTC 
Analysis:

It was found that Ipsilon used default configuration of Jinja templating engine, which did not html escape template variables. This could be exploited to perform XSS attack if a value from untrusted input was used in the template that is rendered to the user`s browser.
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