SAP: Session (Fixation) Attacks and Protections - Black Hat

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#3 Vulnerability Disclosure Timeline (2)+7+9+13+18+21• End Jan’10: solution still not available– Issue escalated internally– Several months required (all affected releases)• Mar’10: fixes for all cases expected +Sep’10– Issues found on legacy releases– Partial fixes for specific CUs under evaluation• Aug’10: meeting date for Nov’10 (disclosure)• Dec’10: vuln & fix releases (CUs & partners)• Mar’11: implementation time of 3 monthsCopyright © 2011 Taddong S.L. www.taddong.com66
SAP Disclosure Guidelines (1)• SAP disclosure guidelines details:– Published after this specific finding– “Since the integrity and security of businessoperations is crucial for businesses in allindustries, SAP as a provider of businesssoftware is absolutely committed tomaintaining the highest possible level ofsecurity within its products.”– What is the right balance between full securityand fast disclosure?Other researchers can find it:!= motivations (see case #1)Copyright © 2011 Taddong S.L. www.taddong.com67
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UPDATEDwww.taddong.comSAP: Session
Page 3 and 4:
Sessions in Web Applications• A w
Page 5 and 6:
OWASP Top 10 2010• The Top 10 Mos
Page 7 and 8:
WASC Threat Clasification v2.0• W
Page 9 and 10:
What Session Fixation Should Be?Obs
Page 11 and 12:
Session ID Exchange (1)• Multiple
Page 13 and 14:
Session ID ExchangeUsed vs. Accepte
Page 15 and 16: The Attacker is After the…http://
Page 17 and 18: Session Fixation Attackshttp://www.
Page 19 and 20: Attack Vectors (2)• Web traffic i
Page 21 and 22: Attack Vectors (4)• Cross-Site Sc
Page 23 and 24: Session Fixation ExploitationSummar
Page 25 and 26: Three Case Studies• From real-wor
Page 27 and 28: Case Study #1Joomla! Open-Source CM
Page 29 and 30: #1 Discovery and Exploitation• Ta
Page 31 and 32: #1 Vulnerability Disclosure Timelin
Page 33 and 34: Case Study #2Commercial Web Applica
Page 35 and 36: #2 Discovery and Exploitation (1)
Page 39 and 40: #2 Impact• Three possible scenari
Page 41 and 42: WebLogic HTTPS Enforcement (2)• H
Page 43 and 44: #2 Vulnerability Disclosure Timelin
Page 45 and 46: #2 Protections (2)HTTPS Secure Cook
Page 47 and 48: #2 Protections (4)WebLogic Session
Page 49 and 50: #2 Protections (6)Summary• Too ma
Page 51 and 52: #2 Protections (8)Industry standard
Page 53 and 54: #3 Summary• Session fixation in t
Page 57 and 58: #3 Discovery and Exploitation (4)Co
Page 61 and 62: #3 Impact (1)• Hijack any SAP use
Page 63 and 64: #3 Impact (2)• Direct impact of s
Page 65: #3 Vulnerability Disclosure Timelin
Page 69 and 70: #3 Protections (1)• Monthly Patch
Page 71 and 72: #3 Protections (3)• Use HTTPS-onl
Page 73 and 74: ConclusionsCopyright © 2011 Taddon
Page 75 and 76: Conclusions (1)• Session fixation
Page 77 and 78: Conclusions (3)• Impact on the we
Page 79 and 80: Questions? Copyright © 2011 Taddon
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SAP: Session (Fixation) Attacks and Protections - Black Hat

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