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Re: [BUG] gitweb: XSS vulnerability of RSS feed

From
Andreas Schwab <schwab@linux-m68k.org>
Date
Nov 12, 2012, 23:09 UTC
Message-ID
<m2ip9apgfi.fsf@igel.home>
In-Reply-To
<CAM9Z-n=6xsC7yiKJ+NU-CxNPxEXWmJzvXLUocgZgWPQnuK6G4Q@mail.gmail.com>
Drew Northup <n1xim.email@gmail.com> writes:
> Something like this may be useful to defuse the "file" parameter, but
> I presume a more definitive fix is in order...

A proper fix will have to add esc_html to the feed generation, something like this (untested):

diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 10ed9e5..a51a8ba 100755
--- a/gitweb/gitweb.perl
+++ b/gitweb/gitweb.perl
@@ -8055,6 +8055,7 @@ sub git_feed {
 		$feed_type = 'history';
 	}
 	$title .= " $feed_type";
+	$title = esc_html($title);
 	my $descr = git_get_project_description($project);
 	if (defined $descr) {
 		$descr = esc_html($descr);


Andreas.
-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
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Previous: Jakub NarębskiNext: Pyeron, Jason J CTR (US)
Message 14 of 15 in “[BUG] gitweb: XSS vulnerability of RSS feed”
  1. glpk xypronNov 11, 2012
  2. Drew NorthupNov 12, 2012
  3. Jeff KingNov 12, 2012
  4. Jeff KingNov 12, 2012
  5. Junio C HamanoNov 12, 2012
  6. Jakub NarębskiNov 12, 2012
  7. Jeff KingNov 12, 2012
  8. Drew NorthupNov 13, 2012
  9. Jakub NarębskiNov 13, 2012
  10. KevinNov 13, 2012
  11. Jakub NarębskiNov 13, 2012
  12. Jeff KingNov 13, 2012
  13. Jakub NarębskiNov 13, 2012
  14. Andreas SchwabNov 12, 2012
  15. Pyeron, Jason J CTR (US)Nov 13, 2012

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