From 0f0ecf68b31303de7cb428554e27d433fe62180e Mon Sep 17 00:00:00 2001
From: Jeff King <peff@peff.net>
Date: Mon, 12 Nov 2012 16:34:28 -0500
Subject: [PATCH] gitweb: escape html in rss title
The title of an RSS feed is generated from many components,
including the filename provided as a query parameter, but we
failed to quote it. Besides showing the wrong output, this
is a vector for XSS attacks.
Signed-off-by: Jeff King <peff@peff.net>
---
gitweb/gitweb.perl | 1 +
t/t9502-gitweb-standalone-parse-output.sh | 15 +++++++++++++++
2 files changed, 16 insertions(+)
diff --git a/gitweb/gitweb.perl b/gitweb/gitweb.perl
index 10ed9e51a58..a51a8babeee 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);
diff --git a/t/t9502-gitweb-standalone-parse-output.sh b/t/t9502-gitweb-standalone-parse-output.sh
index 731e64c3adb..3a8e7d3f5aa 100755
--- a/t/t9502-gitweb-standalone-parse-output.sh
+++ b/t/t9502-gitweb-standalone-parse-output.sh
@@ -185,5 +185,20 @@ test_expect_success 'forks: project_index lists all projects (incl. forks)' '
test_cmp expected actual
'
+xss() {
+ echo >&2 "Checking $1..." &&
+ gitweb_run "$1" &&
+ if grep "$TAG" gitweb.body; then
+ echo >&2 "xss: $TAG should have been quoted in output"
+ return 1
+ fi
+ return 0
+}
+
+test_expect_success 'xss checks' '
+ TAG="<magic-xss-tag>" &&
+ xss "a=rss&p=$TAG" &&
+ xss "a=rss&p=foo.git&f=$TAG"
+'
test_done