Pentest Flashcards

1
Q

What is EternalBlue?

A

EternalBlue is a cyberattack exploit developed by the U.S. National Security Agency (NSA). It targets a vulnerability in Microsoft’s implementation of the Server Message Block (SMB) protocol.

EternalBlue exploits vulnerabilities in SMBv1-packets and leads to arbitrary code execution.

The EternalBlue exploit was leaked by the hacker group known as The Shadow Brokers in April 2017.

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2
Q

Which major ransomware attacks used the EternalBlue exploit?

A

The EternalBlue exploit was used in the WannaCry ransomware attack in May 2017 and the Petya (also known as NotPetya) cyberattack in June 2017.

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3
Q

Buffer Overflow - Canaries

A

Ennalta tiedetty joukko dataa, joka sijoitetaan stäkkiin bufferi ja kontrolli datan väliin. Sen eheyden perusteella tiedetään onko buffer overflow yritys käynnissä.

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4
Q

Buffer Overflow - ASLR

A

Address space layout randomization. ROP-hyökkäyksiä vastaan kehitetty tekniikka, jossa muistipaikkoja sekoitetaan niin, että niiden osoitetta ei voi tietää ennalta.

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5
Q

Buffer Overflow - DEP

A

Data execution prevention. Monitoroidaan ohjelman muistipaikkojen käyttöä. Jos poikkeaa normista, terminoidaan ohjelma.

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6
Q
A
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