[DSECRG-11-038] SAP RSTXSCRP report - smb relay vulnerability SAP RSTXSCRP Report has path traversal vulnerability which can lead to SMB relay attack and full control on system. Application: SAP NetWeaver Versions Affected: SAP NetWeaver Vendor URL: http://www.SAP.com Bugs: Path traversal, SMBRelay Reported: 14.03.2011 Vendor response: 16.03.2011 Date of Public Advisory: 11.11.2011 CVSS: 2.1 CVE-number: Author: Dmitriy Chastuchin from DSecRG (research center of ERPScan) Description *********** SAP RSTXSCRP Report has path traversal vulnerability which can lead to SMB relay attack and full control on system. Details ******* Using transaction "sa38" and report "RSTXSCRP" attacker can insert malicious UNC path in "File Name" field and chose radio button "From/on application server" For successful SMB Relay attack realization attacker should enforce to initiate SMB session on attacker server via UNC path request. SMB client will try to access a remote SMB service on an attacker's machine. Example: ****** Working exploit is available in commercial scanner ERPScan Security Scanner for SAP (http://erpscan.com) References ********** http://erpscan.com/advisories/dsecrg-11-038-sap-rstxscrp-report-smb-relay-vulnerability/ http://www.sdn.sap.com/irj/sdn/index?rid=/webcontent/uuid/c05604f6-4eb3-2d10-eea7-ceb666083a6a https://service.sap.com/sap/support/notes/1583286 Fix Information ************* Solution to this issue is given in the SAP Security Note 1583286. About DSecRG ******* The main mission of DSecRG is to conduct researches of business critical systems such as ERP, CRM, SRM, BI, SCADA, banking software and others. The result of this work is then integrates in ERPScan Security Scanner. Being on the top edge of ERP and SAP security DSecRG research helps to improve a quality of ERPScan consulting services and protects you from the latest threads. Contact: research [at] dsecrg [dot] com http://www.dsecrg.com About ERPScan ******* ERPScan is an innovative company engaged in the research of ERP security and develops products for ERP system security assessment. Apart from this the company renders consulting services for secure configuration, development and implementation of ERP systems, and conducts comprehensive assessments and penetration testing of custom solutions. Our flagship products are "ERPScan Security Scanner for SAP" and service "ERPScan Online" which can help customers to perform automated security assessments and compliance checks for SAP solutions. Contact: info [at] erpscan [dot] com http://www.erpscan.com Polyakov Alexander CTO ERPScan Head of DSecRG ______________________ phone: +7 812 703 1547 +7 812 430 9130 e-mail: a.polyakov@erpscan.com www.erpscan.com www.dsecrg.com ----------------------------------- This message and any attachment are confidential and may be privileged or otherwise protected from disclosure. If you are not the intended recipient any use, distribution, copying or disclosure is strictly prohibited. If you have received this message in error, please notify the sender immediately either by telephone or by e-mail and delete this message and any attachment from your system. Correspondence via e-mail is for information purposes only. Digital Security neither makes nor accepts legally binding statements by e-mail unless otherwise agreed. -----------------------------------