Multiple SSL VPN products same-origin security bypass

sslvpn-sameorigin-security-bypass (54523) The risk level is classified as MediumMedium Risk

Description:

Multiple vendor clientless SSL VPN implementations could allow a remote attacker to bypass security restrictions, caused by an error during content presentation. By persuading a victim to visit a specially-crafted Web page that modifies the document.cookie element, a remote attacker could exploit this vulnerability to bypass domain-based content restrictions and same-origin policy to obtain VPN session tokens and read or modify arbitrary content.

*CVSS:

Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: None
 
Temporal Score: 3.5
  Exploitability: Unproven
  Remediation Level: Unavailable
  Report Confidence: Uncorroborated

Consequences:

Bypass Security

Remedy:

No remedy available as of September 1, 2014.

References:

  • CTX123610: Vulnerability in Clientless SSL VPN Products Could Result in Policy Bypass.
  • Juniper KB15799: Juniper Networks recommendations for mitigating VU#261869.
  • Nortel Security Advisory 2009009920, Rev 1: Nortel Enterprise Response to VU#261869: Clientless SSL VPN Security Issue.
  • Stonesoft Corporation Security Advisory: StoneGate SSL VPN Breaks Browser Domain-Based Security Model .
  • US-CERT Vulnerability Note VU#261869: Clientless SSL VPN products break web browser domain-based security models.
  • BID-37152: Multiple Vendor Clientless SSL VPN Products Same Origin Policy Bypass Vulnerability
  • CVE-2009-2631: Multiple clientless SSL VPN products that run in web browsers, including Stonesoft StoneGate; Cisco ASA; SonicWALL E-Class SSL VPN and SonicWALL SSL VPN; SafeNet SecureWire Access Gateway; Juniper Networks Secure Access; Nortel CallPilot; Citrix Access Gateway; and other products, when running in configurations that do not restrict access to the same domain as the VPN, retrieve the content of remote URLs from one domain and rewrite them so they originate from the VPN's domain, which violates the same origin policy and allows remote attackers to conduct cross-site scripting attacks, read cookies that originated from other domains, access the Web VPN session to gain access to internal resources, perform key logging, and conduct other attacks. NOTE: it could be argued that this is a fundamen
  • OSVDB ID: 61190: SonicWALL Clientless SSL VPN URL Rewriting Cross Domain Same Origin Policy Bypass
  • OSVDB ID: 61191: Cisco ASA Clientless SSL VPN URL Rewriting Cross Domain Same Origin Policy Bypass
  • OSVDB ID: 61192: Citrix Clientless SSL VPN URL Rewriting Cross Domain Same Origin Policy Bypass
  • OSVDB ID: 61193: Juniper Clientless SSL VPN URL Rewriting Cross Domain Same Origin Policy Bypass
  • OSVDB ID: 61194: Nortel Clientless SSL VPN URL Rewriting Cross Domain Same Origin Policy Bypass
  • OSVDB ID: 61195: Stonegate Clientless SSL VPN URL Rewriting Cross Domain Same Origin Policy Bypass
  • SA37696: Citrix Access Gateway Web VPN Same Origin Policy Bypass
  • SA37786: Juniper Networks Secure Access Web VPN Same Origin Policy Bypass
  • SA37788: Stonesoft StoneGate SSL VPN Same Origin Policy Bypass
  • SA37789: Nortel CallPilot Web VPN Same Origin Policy Bypass
  • SECTRACK ID: 1023255: Cisco ASA Clientless SSL VPN Feature Lets Remote Users Bypass Web Browser Same-Origin Policy Restrictions
  • US-CERT VU#261869: Clientless SSL VPN products break web browser domain-based security models

Platforms Affected:

  • Cisco Adaptive Security Appliance 7.1
  • Cisco Adaptive Security Appliance 7.2
  • Cisco Adaptive Security Appliance 8.0
  • Cisco Adaptive Security Appliance 8.0(4)
  • Cisco Adaptive Security Appliance 8.0.2.11
  • Cisco Adaptive Security Appliance 8.1
  • Cisco Adaptive Security Appliance 8.1(2)14
  • Cisco Adaptive Security Appliance 8.1(2)19
  • Cisco Adaptive Security Appliance 8.1.2
  • Cisco Adaptive Security Appliance 8.2.1
  • Citrix NetScaler Access Gateway 8.1 Enterprise
  • Juniper Networks Secure Access
  • Juniper SA700 SSL-VPN
  • Nortel CallPilot 1002rp
  • Nortel CallPilot 1005r
  • Nortel CallPilot 201i
  • Nortel CallPilot 202i
  • Nortel CallPilot 600r
  • Nortel CallPilot 703t
  • SonicWALL SonicWALL SSL-R 4.0.0.18
  • SonicWALL SonicWALL SSL-R3 4.0.0.18
  • SonicWALL SonicWALL SSL-R6 4.0.0.18
  • SonicWALL SonicWALL SSL-RX 4.0.0.18
  • SonicWALL SonicWALL SSL-VPN 1.3.0.3
  • SonicWALL SonicWALL SSL-VPN 2.5
  • SonicWALL SonicWALL SSL-VPN 200 2.1
  • SonicWALL SonicWALL SSL-VPN 200 3.0.0.8
  • SonicWALL SonicWALL SSL-VPN 200 3.0.0.9
  • SonicWALL SonicWALL SSL-VPN 2000 3.5.0.4
  • SonicWALL SonicWALL SSL-VPN 2000 3.5.0.5
  • SonicWALL SonicWALL SSL-VPN 4000 3.5.0.4
  • SonicWALL SonicWALL SSL-VPN 4000 3.5.0.5
  • StoneGate SSL VPN 1.0

Reported:

Dec 03, 2009

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