Edgewall Software
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Opened 15 years ago

Closed 15 years ago

Last modified 15 years ago

#1220 closed defect (fixed)

Security Hole in Fine Grain Permission

Reported by: Richard Li Owned by: Christopher Lenz
Priority: normal Milestone: 0.8.1
Component: version control/changeset view Version: 0.8
Severity: major Keywords: authz
Cc: Branch:
Release Notes:
API Changes:

Description (last modified by Christopher Lenz)

I discovered a security in fine grain permission. When browsing a Changeset with changes not authorized to access, the html based of the diff output is dropped, but one thing missing….

The availability to download the diff in other formats:

Unified Diff

breaks the protection to gain access to the unauthorized information.

Attachments (0)

Change History (7)

comment:1 by Mark Rowe <edgewall.com@…>, 15 years ago

Severity: normalmajor

comment:2 by Christopher Lenz, 15 years ago

Component: generalchangeset view
Description: modified (diff)

Are you saying that the unified diff actually contains the changes to files protected by authz? Looking at the code, I can't see how that is possible, but maybe I'm missing something.

Also, what version of Trac are you using? SVN trunk?

comment:3 by Richard Li, 15 years ago

Oh, yes, this is the case. I am using Trac 0.8 release and replaced the buggy authzperm.py with the newest one in the trunk.

comment:4 by Christopher Lenz, 15 years ago

Owner: changed from Jonas Borgström to Christopher Lenz
Status: newassigned
Version: devel0.8

This problem has been fixed in trunk some time ago, so it only applies to the 0.8-stable branch.

comment:5 by Christopher Lenz, 15 years ago

Keywords: authz added
Resolution: fixed
Status: assignedclosed

Fixed in [1269]. You'll also need [1270] if you're using Python 2.1.

comment:6 by Richard Li, 15 years ago

Finally, I get the sources from 0.8-stable branch and merge the authzperm.py from [1184] back to replace the one in [967]. It is working alright in this way.

Will you update the authzperm.py in 0.8-stable to [1184] before releasing 0.8.1?

comment:7 by Christopher Lenz, 15 years ago

Done in [1274]. Thanks for the reminder.

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