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authorFrédéric Buclin <LpSolit@gmail.com>2012-01-31 16:56:42 +0100
committerFrédéric Buclin <LpSolit@gmail.com>2012-01-31 16:56:42 +0100
commitd141a53e150c68b5a662a0ee625fc398ab164378 (patch)
tree61a720c40f9da5333c8b89b3ffaff8c62f7eaa67 /Bugzilla/WebService/Server
parent4e10a0b85df1228abc0b59ff7b4e830cb28ee093 (diff)
downloadbugzilla-d141a53e150c68b5a662a0ee625fc398ab164378.tar.gz
bugzilla-d141a53e150c68b5a662a0ee625fc398ab164378.tar.xz
Bug 718319: (CVE-2012-0440) [SECURITY] JSON-RPC permits to bypass token checks and can lead to CSRF (no victim's action required)
r=mkanat a=LpSolit
Diffstat (limited to 'Bugzilla/WebService/Server')
-rw-r--r--Bugzilla/WebService/Server/JSONRPC.pm14
1 files changed, 13 insertions, 1 deletions
diff --git a/Bugzilla/WebService/Server/JSONRPC.pm b/Bugzilla/WebService/Server/JSONRPC.pm
index 8d12b7178..804d7874e 100644
--- a/Bugzilla/WebService/Server/JSONRPC.pm
+++ b/Bugzilla/WebService/Server/JSONRPC.pm
@@ -351,7 +351,19 @@ sub _argument_type_check {
Bugzilla->input_params($params);
- if ($self->request->method ne 'POST') {
+ if ($self->request->method eq 'POST') {
+ # CSRF is possible via XMLHttpRequest when the Content-Type header
+ # is not application/json (for example: text/plain or
+ # application/x-www-form-urlencoded).
+ # application/json is the single official MIME type, per RFC 4627.
+ my $content_type = $self->cgi->content_type;
+ # The charset can be appended to the content type, so we use a regexp.
+ if ($content_type !~ m{^application/json(-rpc)?(;.*)?$}i) {
+ ThrowUserError('json_rpc_illegal_content_type',
+ { content_type => $content_type });
+ }
+ }
+ else {
# When being called using GET, we don't allow calling
# methods that can change data. This protects us against cross-site
# request forgeries.