Openwall GNU/*/Linux - a small security-enhanced Linux distro for servers
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Mon, 27 May 2013 08:30:55 -0400 (EDT)
From: Jan Lieskovsky <jlieskov@...hat.com>
To: "Jason A. Donenfeld" <Jason@...c4.com>
Cc: cgit@...ts.zx2c4.com, oss-security@...ts.openwall.com
Subject: Re: CVE Request: cgit directory traversal

Thank you for the report, Jason.

> Hi Kurt,
> 
> As mentioned in early messages to oss-sec, I've inherited
> maintainership of the cgit codebase and am gradually auditing it.
> Today I found a nasty directory traversal:
> 
> http://somehost/?url=/somerepo/about/../../../../etc/passwd
> 
> This should be pretty straightforward to categorize.
> 
> Exploitation looks like:
> http://data.zx2c4.com/cgit-directory-traversal.png
> 
> I've committed a fix for it here:
> http://git.zx2c4.com/cgit/commit/?h=wip&id=babf94e04e74123eb658a823213c062663cdadd6

That patch doesn't seem to be applicable to cgit-0.9.1 version yet (there
doesn't seem to be cgit_parse_readme() routine yet).

Can you provide a patch that would apply against v0.9.1 version too? Or
would this be just problem of master branch code?

Thank you && Regards, Jan.
--
Jan iankko Lieskovsky / Red Hat Security Response Team

> 
> And this fix will be in the master branch and a new release will be made
> soon.
> 
> Cgit by default is not vulnerable to this, and the vulnerability only
> exists when a user has configured cgit to use a readme file from a
> filesystem filepath instead of from the git repo itself. Until a
> release is made, administrators are urged to disable reading the
> readme file from a filepath, if currently enabled.
> 
> Thanks,
> Jason
> 

Powered by blists - more mailing lists

Your e-mail address:

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.