Pulse Connect Secure Bugs Let Remote Users Deny Service, Obtain Potentially Sensitive Information, and Conduct Cross-Site Scripting Attacks
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SecurityTracker Alert ID: 1035932 |
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SecurityTracker URL: http://securitytracker.com/id/1035932
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CVE Reference:
CVE-2016-4786, CVE-2016-4787, CVE-2016-4788, CVE-2016-4789, CVE-2016-4790, CVE-2016-4791, CVE-2016-4792
(Links to External Site)
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Date: May 20 2016
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Impact:
Denial of service via network, Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): prior to versions 7.4R13.4, 8.0r11, 8.1R3, 8.2R1
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Description:
Multiple vulnerabilities were reported in Pulse Connect Secure. A remote user can consume excessive resources on the target system. A remote authenticated user can conduct server-side request forgery attacks. A remote user can obtain potentially sensitive information on the target system. A remote user can conduct cross-site scripting attacks.
A remote user can consume excessive CPU resources on the target system [CVE-2016-4786].
A remote user can view the contents from certain files on the target system [CVE-2016-4787]. When this occurs, temporary files are created and not deleted. A remote user can exploit this flaw repeatedly to consume excessive disk space.
A remote user can view the contents of a specific file on the target system [CVE-2016-4788].
The interface does not properly filter HTML code from user-supplied input before displaying the input [CVE-2016-4789, CVE-2016-4790]. A remote user can cause arbitrary scripting code to be executed by the target administrative user's browser. The code will originate from the Pulse Connect Secure interface and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
A remote authenticated user can view potentially sensitive information on the target system [CVE-2016-4791]. This flaw can also be exploited by a remote authenticated user to conduct server-side request forgery attacks to access other systems and services.
A remote user can view sign in pages [CVE-2016-4792].
Travis Emmert from the Salesforce.com Product Security Team, Anton Rager from the Salesforce.com Product Security Team, Arnold Holzel, and Jake Reynolds from Depth Security reported these vulnerabilities.
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Impact:
A remote user can consume excessive resources on the target system.
A remote user can obtain potentially sensitive information on the target system.
A remote user can access the target user's cookies (including authentication cookies), if any, associated with the Pulse Connect Secure interface, access data recently submitted by the target user via web form to the interface, or take actions on the interface acting as the target user.
A remote authenticated user can conduct server-side request forgery attacks to access other hosts.
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Solution:
The vendor has issued a fix (7.4R13.4, 8.0r11, 8.1R3, 8.2R1).
The vendor's advisories are available at:
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40206
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40207
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40208
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40209
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40210
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40211
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40212
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Vendor URL: kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40206 (Links to External Site)
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Cause:
Access control error, Input validation error, Resource error
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Message History:
None.
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Source Message Contents
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[Original Message Not Available for Viewing]
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