ReDoS – Regular Expression Denial of Service - Whitepaper

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What’s inside

The regular expression denial of service (ReDoS) is a denial-of-service attack, that exploits the fact that most regular expression implementations may reach extreme situations that cause them to work very slowly (exponentially related to input size). An attacker can then cause a program using a regular expression to enter these extreme situations and then hang for a very long time. The ReDoS was first identified and defined by Checkmarx’s research lab team. Checkmarx’s SAST solution scans any software and identifies vulnerable areas in the code which can be subject to a ReDoS attack.

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Read this Whitepaper to learn

  • What is the attack style known as the regular expression denial of service (ReDoS)
  • The latest tips from research released by Checkmarx’s research team

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