Breaking SAP Portal - Proidea

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SSRF History: Basics • We send Packet A to Service A • Service A initiates Packet B to service B • Services can be on the same or different hosts • We can manipulate some fields of packet B within packet A • Various SSRF attacks depend on how many fields we can control on packet B Packet A Packet B
SSRF Attack Direct attack GET /vuln.jsp Corporate network Partial Remote SSRF: HTTP attacks on other services SSRF Attack Get /vuln.jst HTTP Server A B
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Invest in security to secure invest
Page 3 and 4:
Evgeny Neyolov
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SAP security Agenda SAP forensics W
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SAP security Espionage Stealing fin
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How easy? SAP Security Notes http:/
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What about unpublished threats? •
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What do we see? • A lot of resear
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Say hello to Portal • Point of we
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Okay, okay. SAP Portal is important
Page 19 and 20: Full logging is not always the best
Page 21 and 22: SAP Management Console • SAP MC -
Page 23 and 24: SAP Management Console true
Page 25 and 26: Prevention • The HTTP Provider se
Page 27 and 28: Declarative By WEB.XML Access contr
Page 29 and 30: web.xml CriticalAction com.sap.adm
Page 31 and 32: Verb Tampering Need Admin account i
Page 33 and 34: Investigation [Apr 3, 2013 1:23:59
Page 35 and 36: Invoker Servlet • Want to execute
Page 37 and 38: Prevention • Update to the latest
Page 39 and 40: Investigation
Page 41 and 42: EPCF EPCF provides a JavaScript API
Page 43 and 44: Investigation #Plain###192.168.192.
Page 45 and 46: Webdynpro JAVA http://help.sap.com/
Page 47 and 48: Investigation • Most actions have
Page 49 and 50: Directory traversal fix bypass
Page 51 and 52: ../ !252f..!252f Investigation
Page 53 and 54: Read file How we can read the file?
Page 55 and 56: XXE in Portal
Page 57 and 58: XXE Error based XXE
Page 59 and 60: $internal/version=Ni4zFF4wMSeasefor
Page 61 and 62: Prevention • Install SAP note 161
Page 63 and 64: Investigation • The only one way
Page 65 and 66: Malicious file upload: Attack http:
Page 67 and 68: Malicious file upload: Forensics [A
Page 69: Portal post exploitation • Lot of
Page 73 and 74: Portal post-exploitation
Page 75 and 76: • Flooding • Deleting • Chang
Page 77 and 78: Log deleting • Flooding is the su
Page 79 and 80: Log archiving • Archiving when al
Page 81 and 82: Securing SAP Portal • Patching
Page 83 and 84: Future work I'd like to thank SAP's
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Breaking SAP Portal - Proidea

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