Hom kev tawm tsam dab tsi yog qhov tsis txaus?
Hom kev tawm tsam dab tsi yog qhov tsis txaus?

Video: Hom kev tawm tsam dab tsi yog qhov tsis txaus?

Video: Hom kev tawm tsam dab tsi yog qhov tsis txaus?
Video: Dab ntxwg nyoos yog leej twg ...zaj no zoo heev. 2024, Kaum ib hlis
Anonim

Dab tsi yog qhov txawv hom ntawm buffer overflow tawm tsam ? Stack overflow nres - Qhov no yog qhov feem ntau hom ntawm buffer overflow nres thiab koom nrog dej ntws a tsis pub ntawm hu pawg *. Heap overflow nres - Qhov no hom kev tawm tsam lub hom phiaj cov ntaub ntawv nyob rau hauv lub qhib nco pas hu ua heap *.

Hais txog qhov no, dab tsi yog qhov tsis txaus siab tawm tsam hauv kev ruaj ntseg network?

Hauv cov ntaub ntawv kev ruaj ntseg thiab programming, a tsis pub dhau , los yog tsis pub dhau , yog ib qho anomaly qhov program, thaum sau cov ntaub ntawv rau a tsis pub , overruns cov tsis pub ciam teb thiab overwrite qhov chaw nco nyob ib sab. Kev siv tus cwj pwm ntawm a tsis pub dhau yog ib tug paub zoo kev ruaj ntseg siv.

Ib yam li ntawd, yuav ua li cas tiv thaiv kev tawm tsam tsis txaus? Tiv thaiv Tsis Muaj Dej Txoj kev yooj yim tshaj los tiv thaiv cov kev tsis zoo no yog siv cov lus uas yooj yim ua tsis pub rau lawv. C tso cai rau cov kev tsis zoo no los ntawm kev nkag ncaj qha rau lub cim xeeb thiab tsis muaj kev ntaus ntawv zoo. Lus ntawd ua tsis qhia cov yam no feem ntau tiv thaiv kab mob. Java, Python, thiab.

Yog li ntawd, yuav ua li cas thiaj li tsis tuaj yeem tawm tsam?

A tsis pub dhau tshwm sim thaum ib qho kev pab cuam lossis cov txheej txheem sim sau cov ntaub ntawv ntxiv rau qhov thaiv ntev ntev ntawm lub cim xeeb, lossis tsis pub , dua li tsis pub yog faib los tuav. Kev siv a tsis pub dhau tso cai rau tus neeg tawm tsam los tswj lossis tsoo cov txheej txheem lossis hloov kho nws qhov hloov pauv sab hauv.

Yog vim li cas tsis yog overflow Ib qho yooj yim?

A buffer overflow vulnerability tshwm sim thaum koj muab ib qho kev pab cuam ntau cov ntaub ntawv. Cov ntaub ntawv ntau dhau ua rau qhov chaw nyob ze ntawm lub cim xeeb thiab tuaj yeem hloov pauv lwm cov ntaub ntawv. Yog li ntawd, qhov kev zov me nyuam yuav tshaj tawm qhov yuam kev lossis coj txawv txawv. Xws li yooj yim kuj hu ua tsis pub overrun.

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