Bug 14521: SQL injection in local use system preferences

This patch fixes a SQL injection vulnerability in the local use
system preferences.

_TEST PLAN_

Before applying:

1) Go to Global System Preferences
2) Click on the "Local use" tab
3) Add a new preference with the value "') or '1' = '1' -- "
(be sure to include the space at the end after the comment --).
4) When the page refreshes, you should now see about 99 other system
preferences which shouldn't be showing up.

5) Apply the patch

6) Refresh the page
7) Note that you now only see a system preference for "') or '1' = '1' -- "
and the other actual local use system preferences.

Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@unc.edu.ar>
(cherry picked from commit a72262a950)
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
Signed-off-by: Liz Rea <wizzyrea@gmail.com>
This commit is contained in:
David Cook 2015-07-13 14:06:46 +10:00 committed by Liz Rea
parent 21d6252b1f
commit 9513b93c82
1 changed files with 4 additions and 2 deletions

View File

@ -70,14 +70,16 @@ sub StringSearch {
my $strsth = "Select variable,value,explanation,type,options from systempreferences where variable in (";
my $first = 1;
my @sql_bind;
for my $name ( get_local_prefs() ) {
$strsth .= ',' unless $first;
$strsth .= "'$name'";
$strsth .= "?";
push(@sql_bind,$name);
$first = 0;
}
$strsth .= ") order by variable";
$sth = $dbh->prepare($strsth);
$sth->execute();
$sth->execute(@sql_bind);
while ( my $data = $sth->fetchrow_hashref ) {
unless (defined $data->{value}) { $data->{value} = "";}