admin security hacking hacking for dummies access to other peoples systems made simple外語英文電子書

admin security hacking hacking for dummies access to other peoples systems made simple外語英文電子書

ID：7993540

大小：1.26 MB

頁數(shù)：74頁

時(shí)間：2018-03-03

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1、HackingforDummies(Accesstootherpeoplessystemsmadesimple–&someextradatabaselore).IntroductionTheauthorisnotresponsibleforanyabuseofthisinformation.Itisintendedforeducationaluseonly.Youmaybequiteshockedathowvulnerableyouare!AsanafterthoughtIaddedasectionondatabaseaccessdu

2、etoanumberofrequests.ThemajorityofsuccessfulattacksoncomputersystemsviatheInternetcanbetracedtoexploitationofsecurityflawsinsoftwareandoperatingsystems.Thesefewsoftwarevulnerabilitiesaccountforthemajorityofsuccessfulattacks,simplybecauseattackersareopportunistic–takingt

3、heeasiestandmostconvenientroute.Theyexploitthebest-knownflawswiththemosteffectiveandwidelyavailableattacktools.Mostsoftware,includingoperatingsystemsandapplications,comeswithinstallationscriptsorinstallationprograms.Thegoaloftheseinstallationprogramsistogetthesystemsins

4、talledasquicklyaspossible,withthemostusefulfunctionsenabled,withtheleastamountofworkbeingperformedbytheadministrator.Toaccomplishthisgoal,thescriptstypicallyinstallmorecomponentsthanmostusersneed.Thevendorphilosophyisthatitisbettertoenablefunctionsthatarenotneeded,thant

5、omaketheuserinstalladditionalfunctionswhentheyareneeded.Thisapproach,althoughconvenientfortheuser,createsmanyofthemostdangeroussecurityvulnerabilitiesbecauseusersdonotactivelymaintainandpatchsoftwarecomponentstheydon’tuse.Furthermore,manyusersfailtorealizewhatisactually

6、installed,leavingdangeroussamplesonasystemsimplybecauseusersdonotknowtheyarethere.Thoseunpatchedservicesprovidepathsforattackerstotakeovercomputers.Foroperatingsystems,defaultinstallationsnearlyalwaysincludeextraneousservicesandcorrespondingopenports.Attackersbreakintos

7、ystemsviatheseports.Inmostcasesthefewerportsyouhaveopen,thefeweravenuesanattackercanusetocompromiseyournetwork.Forapplications,defaultinstallationsusuallyincludeunneededsampleprogramsorscripts.Oneofthemostseriousvulnerabilitieswithwebserversissamplescripts;attackersuset

8、hesescriptstocompromisethesystemorgaininformationaboutit.Inmostcases,thesystemadministratorwhosesystemiscompro

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