Symantec pcAnywhere – Insecure File Permissions Privilege Escalation

• Exploit Database
• 107 阅读

• 作者： Edward Torkington
  日期： 2012-05-02
• 类别：

  • local
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/18823/
• 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61

  ======= Summary ======= Name: Symantec pcAnywhere insecure file permissions local privilege escalation Release Date: 30 April 2012 Reference: NGS00117 Discoverer: Edward Torkington <edward.torkington@ngssecure.com> Vendor: Symantec Vendor Reference: Systems Affected:   Symantec pcAnywhere 12.5.x IT Management Suite 7.0 pcAnywhere Solution 12.5.x IT Management Suite 7.1 pcAnywhere Solution 12.6.x   Risk: High Status: Fixed   ======== TimeLine ======== Discovered: 23 August 2011 Released: 14 September 2011 Approved: 14 September 2011 Reported: 23 August 2011 Fixed: 24 January 2012 Published: 30 April 2012   =========== Description ===========   Inadequate file permissions on application binaries could result on local privilege escalation   ================= Technical Details ================= A number of key files in the C:\Program Files\Symantec\pcAnywhere\ folder are writable by any user:   C:\Program Files\Symantec\pcAnywhere\WinAw32.exe Everyone:(OI)(CI)F NT AUTHORITY\SYSTEM:(OI)(CI)F   C:\Program Files\Symantec\pcAnywhere\awrem32.exe Everyone:(OI)(CI)F NT AUTHORITY\SYSTEM:(OI)(CI)F   C:\Program Files\Symantec\pcAnywhere\awhost32.exe Everyone:(OI)(CI)F NT AUTHORITY\SYSTEM:(OI)(CI)F   It is trivial to replace these .exe (including the main pcanywhere exe, winaw32.exe with a malicious binary). When launched by the admin, privilege escalation would be gained. The awhost32.exe is set as a service under some scenarios (SYSTEM) and allows a user to privilege escalate by overwriting this binary.   =============== Fix Information ===============   An updated version of the software has been released to address these vulnerabilities: http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security _advisory&pvid=security_advisory&year=2012&suid=20120124_00