Jump to content

Search the Community

Showing results for tags 'pysa'.

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Informatii generale
    • Anunturi importante
    • Bine ai venit
    • Proiecte RST
  • Sectiunea tehnica
    • Exploituri
    • Challenges (CTF)
    • Bug Bounty
    • Programare
    • Securitate web
    • Reverse engineering & exploit development
    • Mobile security
    • Sisteme de operare si discutii hardware
    • Electronica
    • Wireless Pentesting
    • Black SEO & monetizare
  • Tutoriale
    • Tutoriale in romana
    • Tutoriale in engleza
    • Tutoriale video
  • Programe
    • Programe hacking
    • Programe securitate
    • Programe utile
    • Free stuff
  • Discutii generale
    • RST Market
    • Off-topic
    • Discutii incepatori
    • Stiri securitate
    • Linkuri
    • Cosul de gunoi
  • Club Test's Topics
  • Clubul saraciei absolute's Topics
  • Chernobyl Hackers's Topics
  • Programming & Fun's Jokes / Funny pictures (programming related!)
  • Programming & Fun's Programming
  • Programming & Fun's Programming challenges
  • Bani pă net's Topics
  • Cumparaturi online's Topics
  • Web Development's Forum
  • 3D Print's Topics

Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


Website URL


Yahoo


Jabber


Skype


Location


Interests


Occupation


Interests


Biography


Location

Found 1 result

  1. Facebook has announced the availability of Pysa (Python Static Analyzer), an open-source tool designed for the static analysis of Python code. The security-focused tool relies on Pyre, Facebook’s type checker for Python, and allows for the analysis of how data flows through code. It can be used to identify issues related to the protection of user data, as well as flaws such as XSS and SQL injection. In addition to making Pysa available in open source, Facebook released many of the definitions that it leverages when looking for security bugs, making it readily available for others to start analyzing their own Python code. The tool also leverages open source Python server frameworks, including Django and Tornado, and this makes it usable for code analysis right from the start. Furthermore, only few lines of code are needed to use Pysa for additional frameworks, Facebook says. Pysa allows users to define sources of origin for important data and places where that data should not reach, which are called sinks. The tool then identifies functions that return data from a source and those that reach a sink and, if it discovers a connection between a source and a sink, it reports the issue. The tool was designed in such a manner that it avoids false negatives, thus supposedly identifying as many security issues as possible. This, however, results in more false positives, and, to remove these as well, Facebook’s engineers added sanitizers and features into the tool. The social media platform admits that Pysa has its limitations “based on its choice to address security issues related to data flow, together with design decisions that trade off performance for precision and accuracy.” Furthermore, Pysa was designed only for the discovery of data flow–related security issues, meaning that it won’t identify security or privacy issues that cannot be modeled as flows of data. Although nearly half of the results returned in the timeframe were false positives, Facebook was able to tune Pysa up, and says that it eventually returned “100 percent valid issues.” Via securityweek.com
×
×
  • Create New...