Race Condition Vulnerabilities in Web Applications

As per the OWASP testing guide, “A race condition is a flaw that produces an unexpected result when the timing of actions impact other actions. An example may be seen on a multithreaded application where actions are being performed on the same data. Race conditions, by their very nature, are difficult to test for.”

1. What is a race condition vulnerability?
2. What is race condition in Web application?
3. What is race condition explain with example in OS?
4. Which one of the following attacks is an example of a race condition exploitation?
5. How can we prevent the race condition?
6. What is a race condition in programming?
7. What is race condition medium?
8. What is race condition in PHP?
9. Does Sonarqube check for race conditions?

What is a race condition vulnerability?

What Is a Race Condition Vulnerability? A race condition attack happens when a computing system that's designed to handle tasks in a specific sequence is forced to perform two or more operations simultaneously. ... Other names used to refer to this vulnerability include Time of Check/Time of Use or TOC/TOU attacks.

What is race condition in Web application?

What is a race condition? A race condition occurs when multiple threads simultaneously access the same shared code, variables, files, etc. without locking or synchronization, resulting in inconsistency of the output. ... A race condition can occur if proper synchronization techniques are not applied.

What is race condition explain with example in OS?

A race condition occurs when a software program depends on the timing of one or more processes to function correctly. ... If a program relies on threads that run in an unpredictable sequence, a race condition may occur. A simple example is a logic gate that handles boolean values.

Which one of the following attacks is an example of a race condition exploitation?

Meltdown: A race condition vulnerability

The famous Meltdown attack is an example of exploitation of a race condition vulnerability. In this case, the vulnerability is caused by parallel processing of fetching data from memory and checking if a user has authorization to access that memory.

How can we prevent the race condition?

Race conditions can be avoided by proper thread synchronization in critical sections. Thread synchronization can be achieved using a synchronized block of Java code. Thread synchronization can also be achieved using other synchronization constructs like locks or atomic variables like java.

What is a race condition in programming?

A race condition arises in software when a computer program, to operate properly, depends on the sequence or timing of the program's processes or threads. Critical race conditions cause invalid execution and software bugs. Critical race conditions often happen when the processes or threads depend on some shared state.

What is race condition medium?

A race condition occurs when multiple threads simultaneously access the same shared code/resource without locking or synchronization . This may result in inconsistency of the output.

What is race condition in PHP?

Race conditions in software are when two concurrent threads of execution access a shared resource in a way that unintentionally produces different results depending on the time at which the code is executed. For example, a multi-threaded program may spawn 2 threads that have access to the same location in memory.

Does Sonarqube check for race conditions?

Security Analysis: Detect security problems. Concurrency errors: Dynamic Uses runtime error detection to expose defects such as race conditions, exceptions, resource and memory leaks, and security attack vulnerabilities.