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 >
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