Windows XP Service Pack 2 (??? 7): Protecting ????? overflows ?????? ??????

?????? ????????? ?????? ?????????
???? ???????: 889741 - ??? ???????? ???? ????? ????? ??? ???????.
??? ??? ??????? ??? ??????? ???? ???? ?? ????? ???????? ?? ??????? ?????? ??? ?? ????? ????? ????? ????? ?????? ??? ???????. ????? ????? ??? ????????? ??? ??? ????? ?????. ??? ????? ??? ?????????, ????? ???? ??? ????? ????? ???????? ?? ????? ??? ???? ?? ???? ??????. ??? ??? ?????? ??? ????, ?????? ???????? ??? ????? ?????? ???????? ??? ????? ?????.
????? ???? | ?? ????

?? ??? ??????

??????

??? ??????? ?? 7 ??? ?? ???? Windows XP Service Pack 2-???? ????? . ??? ??? ??????? ????? ??????? ?? overflows ?????? ?? Microsoft Windows XP Service Pack 2 (SP2).

???? ???????? ?????? ?? ???? Windows XP Service Pack 2-???? ????? , ???? ???????? Microsoft Knowledge Base ???????? ?? ?????? " References ".

????? ???? Windows XP Service Pack 2-???? ????? ???????? ???????:
Part 1:  Better security with Service Pack 2

Part 2:  Installing Service Pack 2

Part 3:  The new Security Center

Part 4:  Automatic Updates

Part 5:  Virus protection

Part 6:  Windows Firewall

Part 7:  Protecting against buffer overflows

Part 8:  Improvements in Internet Explorer and Outlook Express

Part 9:  Uninstalling Service Pack 2

??????? ????

????? 7: Protecting ????? overflows ?????? ??????

?????? ?????? overflows ?? ???? ??????? notorious ?????? ?? ???? ?? ????????. ??? ????? ??? ????? ????? ????????? ???? ?? ???? ??????? ??? ??? ????? ????? ?? ??? ???????.

???? ???? ??? ???? ??????? ?? ???????? ?? ????? ?????? ???????? ???? ????? ??? ?????? ?? ?????? ???? ?? ??????? ?????. ????? ??????? ????? ??? ?? ??? ?????? ???????? ?? ????? ?????. ???????? ?????? ?? ?????? ???? ????? ?????????. ??? ???? ??????? ?? ????? ??? ??????? ??? ?????? ??? ?? ?????? ?????? ????????? ????? ???????.
?? ??? ??????????? ??? ??????
Buffer overflow

??? ???? ?? ????? ??? ?????? ??????

???? ????? ??? ?? ????? ??? ?????? ???? ???? ?? ?????? ??? ????????? ??????.

??????? ???? ???? ?????? ????? (RAM) ???? ??? ???????? ?? ??? ???? ???????. ???? ????? ??????? ????? Windows XP SP2 ??? ???? ????? ?? ????? ?? ????? ?????? ???????? (RAM) ????????? ??????. ??? ?? ??? ????? ?????? ??? ????? ??????? ????? ??? ????????.

??? ??????? ?????? ????? ???????:
  • ???? ????????? ????????
    ??? ????? ??????? ???????? ??????? ?????? ???.
  • ???? ??????
    ??? ????? ???????? ??????? ??????? ???.
  • ???? (??? ?? ???? ??????)
    ??? ????? ??? ??? ??????? ??? ????? ????????. ???? ????? ?????? ??????? ??????? ?? ??? ????? ????????? ??????? ??? ?????? ?????, ????? ??????. ??? ???? ?????? ???????? ??? ????? ?????? ?? ????? ????? ??????.
    ?? ??? ??????????? ??? ??????
    Return address
    ???????? ???? ??? ??????? ?????? ?????? ????? ????? ??????, ??? ???? ??? ????? ????? ?????? ??? ??????. ??? ?????? ??????? ?? ???? ?????. ??? ???? ??? ?? ????? ?? ?????? ?????? ???? ???? ??? ?????, ???? ?????? ???? ??????. ??? ???? ??????? ??? ????? ????? ????? ???????? ?? ??????, ?? ???? ??????? ?????? ??????? ???? ??? ??????? ?? ??? ????????? ??????? ?? ???????. ????? ?? ???? ??????? ?????? ???? ????? ????? ??????? ??? ??????? ?????? ????. ???? ???????? ?? ???? ???? ????? ???? blindly ?????? ??????? ???????.
    ?? ??? ??????????? ??? ??????
    Variable X redirecting to harmful code

?? ???? ???? ?? Data Execution Prevention?

????? ????????? ???????? " (DEP) ?????? ????? ??????? ?????? ?? ??? ???? ?????? ????? ?????? ?????. ?????? DEP ?????? ???? ?????? ??? ??????? ?? ?? ????????? ?????? ?? ? ?????? ????? ??????? ?? " ??? ???? ???????. " ??? ???? ?????? ?????? ??? (???? ?? ??) ???? ??? ???????? ????? DEP ?????? ???????? ??????? ?????? ????? ?????.

??? ??? ????? Windows XP SP2? ??? ????? DEP ?? ??? ???? ?????? ?????? ?????? ???? ??? ????? ??????? ????? ???? ?????? ?? DEP. ?????? ????, ????? ????? DEP ?????? ???? ??? ?? ????? ????????? ??????? ????? ??????? ???????? ??????.

????? ????? DEP ?????? ????

  1. ???? ??? ???? ?? ??? ??? " ???? ?????? , ????? ?????? .
    ?? ??? ??????????? ??? ??????
    System icon (Control Panel)
  2. ???? ??? ????? ??????? ?????? ?????? ??? ?? ???? ??? ??????? ??? ?????? .
    ?? ??? ??????????? ??? ??????
    System Properties - Advanced tab
  3. ???? ??? ????? ??????? Data Execution Prevention ?? ??? ????? DEP ??????? ????? ??????? ???????? ???? ??? ???? ?????? ?????? , ????? ????? .
    ?? ??? ??????????? ??? ??????
    Performance Options - DEP tab - Turn on DEP for all programs...
  4. ??? ????? ????? ????????? ????? ??? ??????? ??? ???? ????? ???????. ????? ????????? ?????? ??? ????? ?????, ?? ?? ??? ????? ?????????.
????? ???????????
??? ??? ??? ??????? ?? ???? ?????, ????? ????? ??? ???????????. ?????? ????? ???? ??????? ???????:
  1. ?? ????? ??????? Data Execution Prevention ???? ??? ????? .
  2. ????? ?? ?? ??? ??? ???????? ???? ???? ???? ????? ????????, ???? ??? " ??? " ? ??? ?? ???? ??? ????? .
  3. ?? ???? ??? ????? ?????, ?????? ????? ?????????.

?????? Data Execution Prevention

???? ??? ??????? ?? ???? ????????? ?? ???? ??????? ???? ???? ?????? ?????? ?????????? ???????? ?? ?????? ??????? ?????? ??? ?????????. ???? ?? ???? ??? ???? ???? ??? ????? ??? ????????? ???? ????? ????? ??? ???? ?? ?????? ?????? ??. ?????? ??? ???? ??? ????????.

??? ??? ????????? ????? ????? ?? DEP, ????? ????? ??? ???????. ?????? ????? ??? ????? ????? Boot.ini ??? ???:
  1. ??? ????? ????? ???? ?????? ?????? . ???? ??? ???? ? ????? ??? ???? ?????? " ? ??? ?? ???? ????? ??????? ??? ?????? ?????? .
    ?? ??? ??????????? ??? ??????
    Folder Options icon (Control Panel)
  2. ???? ?? ??? ???? ??? ???? ???????? ???????? ??????.
    ?? ??? ??????????? ??? ??????
    Folder Options window - show hidden files...
  3. ?? ???? ????? ????????? ?? ????? ?????. ?????? ????? ???? ??????? F8 ??? ?????? ?????? ????? Self ?????? (POST).
  4. ?????? " ?????? ?????? ?????? ???? ????? ????? . ?? ???? ENTER.
  5. ????? ???? ??????? ???? ???? ??????, ??? ?? ???? ENTER.
  6. ???? ???? ?????????? ??? ?? ???? ??? ???? ??????? C:\ . ????? ?? ????? Boot.ini.
  7. ??? ??????? ?????? ?? ?????? ???? ????? ???? ???????? ?? ????? Boot.ini. ?????? ????? ???? ??? ?????? ?????? ??? ?????, ????? ??? ??? , ???? ??? ?????? ?????? ??? ????? ????? ?? ??? ?? ???? ??? ??? .
  8. ???? ??? ?????? ?????? ??? ????? Boot.ini, ??? ?? ???? ??? ????? .
    ?? ??? ??????????? ??? ??????
    C:\boot.ini - Properties in context menu
  9. ???? ???? ??????? ???, ??? ?? ???? ??? ????? .
    ?? ??? ??????????? ??? ??????
    Read-only checkbox deactivated
  10. ???? ??? ???? ? ????? ??? ????? , ??? notepad c:\boot.ini? ??? ?? ???? ??? ????? .
    ?? ??? ??????????? ??? ??????
    Run - notepad c:\boot.ini
  11. ????? NoExecute=xxxxx ??? NoExecute=AlwaysOff.
    ?? ??? ??????????? ??? ??????
    Boot.ini editor - NoExecute=OptIn
    ?? ??? ??????????? ??? ??????
    Boot.ini editor - NoExecute=AllwaysOff
  12. ???? ????? Boot.ini ?? ?????? ??? ??????? ???? ?? ?? ??? ????? ?????????.

?????

?????? ??? ???? ?? ?????????? ???? ??? ??? ?????? ?????? ???? ??????? ?? ????? ?????Microsoft:
875352 ??? ???? ????? ?????? ????? ????????? ???????? " (DEP) ?? Windows XP Service Pack 2 ? Windows XP Tablet PC Edition 2005, ? Windows Server 2003
?????? ??? ???? ?? ????????? ??? ?????? ???? ?? ??????? ???? ???? ?? ??? Windows XP Service Pack 2- ???? ??? ??????? ?????? ?????? ???? ???????? ?? ????? ?????Microsoft:
889735 Windows XP Service Pack 2 (??? 1)

889736 ????? Service Pack 2 (??? 2)

889737 ???? ?????? ??????? (??? 3)

889738 ????????? ????????? (??? 4)

889739 ??????? ?? ????????? (??? 5)

889740 ???? ????? Windows (??? 7)

889742 ??????? ?? Internet Explorer ? Outlook Express (??? 8)

889743 ????? ????? Service Pack 2 (??? 9)
??? ??????? ?? ????? ?? ??????. ??? ??????? ????? ?? ??????? ??? ??????? ????????? ?????? ??? ?? ????? ??? ???????. ????? ????????? ???? ??? ???????? ?? ??? ??????? ??? ??????? German-????? ?? ??? ??????. ?? ??? ?????? ????? ?? ??? ????????? ???? ??? ??????? ??? ???? ?? ??? ?????? ???? ???? ??? ?? ??? ???????. Microsoft ???? ??? ????????? ?????? ??? ???? ?? ????? ?? ????? ? ??? ???? ?? completeness ?? ??? ?? ???????.

???????

???? ???????: 889741 - ????? ??? ??????: 18/????/1428 - ??????: 1.4
????? ???
  • Microsoft Windows XP Service Pack 2, ????? ?????? ??:
    • Microsoft Windows XP Home Edition
    • Microsoft Windows XP Professional
????? ??????: 
kbhowto KB889741 KbMtar kbmt
????? ????
???: ??? ????? ??? ?????? ???????? ?????? ????? ???? ????? ?????????? ????? ?? ????????? ?????? ????. ???? ???? ?????????? ???? ?? ???????? ???????? ?????? ????????? ????? ????????? ???????? ????? ???????? ?????? ?? ?????? ??? ?? ???????? ???????? ?? ????? ??????? ?????? ??? ??????? ?????? ??. ?????? ?? ???? ??? ??????? ???????? ????? ?? ???? ????? ?????? ??? ????? ??? ????? ??????? ?? ????? ?? ?????? ??? ??? ??????? ??????? ?? ????? ????? ????? ????? ?????. ?? ????? ???? ?????????? ??????? ??? ????? ?? ??????? ?? ????? ?????? ?? ??? ????? ?? ????? ??????? ?? ???????? ?? ??? ???????. ???? ???? ?????????? ???????? ??? ????? ?????? ??????? ??????. ??? ?? ???? ??? ??????? ????? ?? ???????? ?? ??? ???????? ?????? ????? ????????? ??????? ???? ??? ???????
???? ??? ????? ??????? ?????? ??????????889741

????? ???????

 

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