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2lambda123 / nasa-fprime

Apache License 2.0
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Limit readline() #9

Closed pixeebot[bot] closed 6 months ago

pixeebot[bot] commented 6 months ago

This codemod hardens all readline() calls from file objects returned from an open() call, StringIO and BytesIO against denial of service attacks. A stream influenced by an attacker could keep providing bytes until the system runs out of memory, causing a crash.

Fixing it is straightforward by providing adding a size argument to any readline() calls. The changes from this codemod look like this:

  file = open('some_file.txt')
- file.readline()
+ file.readline(5_000_000)
More reading * [https://cwe.mitre.org/data/definitions/400.html](https://cwe.mitre.org/data/definitions/400.html)

I have additional improvements ready for this repo! If you want to see them, leave the comment:

@pixeebot next

... and I will open a new PR right away!

🧚🤖Powered by Pixeebot (codemod ID: pixee:python/limit-readline)

cr-gpt[bot] commented 6 months ago

Seems you are using me but didn't get OPENAI_API_KEY seted in Variables/Secrets for this repo. you could follow readme for more information

secure-code-warrior-for-github[bot] commented 6 months ago

Micro-Learning Topic: Denial of service (Detected by phrase)

Matched on "denial of service"

The Denial of Service (DoS) attack is focused on making a resource (site, application, server) unavailable for the purpose it was designed. There are many ways to make a service unavailable for legitimate users by manipulating network packets, programming, logical, or resources handling vulnerabilities, among others. Source: https://www.owasp.org/index.php/Denial_of_Service

Try a challenge in Secure Code Warrior

code-companion-ai[bot] commented 6 months ago

Processing PR updates...

codesyncapp[bot] commented 6 months ago

Check out the playback for this Pull Request here.

git-greetings[bot] commented 6 months ago

Thanks @pixeebot[bot] for opening this PR!

For COLLABORATOR only :

performance-testing-bot[bot] commented 6 months ago

Unable to locate .performanceTestingBot config file

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git-greetings[bot] commented 6 months ago
PR Details of @pixeebot[bot] in nasa-fprime : OPEN CLOSED TOTAL
4 4 8