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Insecure Randomness Affecting com.github.penggle:kaptcha Open this link in a new tab package, versions [0,]

0.0
medium

  • Attack Complexity

    High

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  • snyk-id

    SNYK-JAVA-COMGITHUBPENGGLE-72734

  • published

    25 Dec 2018

  • disclosed

    19 Oct 2018

  • credit

    FanjunMeng

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Introduced: 19 Oct 2018

CVE-2018-18531 Open this link in a new tab
CWE-310 Open this link in a new tab

How to fix?

There is no fixed version for com.github.penggle:kaptcha.

Overview

com.github.penggle:kaptcha is a default output produces a google captcha.

Affected versions of this package are vulnerable to Insecure Randomness. text/impl/DefaultTextCreator.java, text/impl/ChineseTextProducer.java, and text/impl/FiveLetterFirstNameTextCreator.java in kaptcha use the Random (rather than SecureRandom) function for generating CAPTCHA values, which makes it easier for remote attackers to bypass intended access restrictions via a brute-force approach.