------------------------------------------------------------------------ Cisco AnyConnect elevation of privileges via DLL side loading ------------------------------------------------------------------------ Yorick Koster, June 2015 ------------------------------------------------------------------------ Abstract ------------------------------------------------------------------------ Cisco AnyConnect Secure Mobility Client for Windows is affected by an vulnerability that allows local attackers to execute arbitrary DLL files with elevated privilege. By exploiting this vulnerability is is possible for the attacker to gain SYSTEM privileges. ------------------------------------------------------------------------ See also ------------------------------------------------------------------------ - CVE-2015-6305 - http://tools.cisco.com/security/center/viewAlert.x?alertId=41136 - https://code.google.com/p/google-security-research/issues/detail?id=460 ------------------------------------------------------------------------ Test version ------------------------------------------------------------------------ This issue was successfully verified on Cisco AnyConnect Secure Mobility Client for Windows version 3.1.08009. ------------------------------------------------------------------------ Fix ------------------------------------------------------------------------ There is currently no fix available. Updates are expected to be released on September 30, 2015. Cisco has released bug ID CSCuv01279 for registered users, which contains additional details and an up-to-date list of affected product versions. ------------------------------------------------------------------------ Details ------------------------------------------------------------------------ https://www.securify.nl/advisory/SFY20150601/cisco_anyconnect_elevation_of_privileges_via_dll_side_loading.html
