Description

text/impl/DefaultTextCreator.java, text/impl/ChineseTextProducer.java, and text/impl/FiveLetterFirstNameTextCreator.java in kaptcha 2.3.2 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.

Remediation

References

https://github.com/penggle/kaptcha/issues/3

Related Vulnerabilities

CVE-2020-28491 Vulnerability in maven package com.fasterxml.jackson.dataformat:jackson-dataformat-cbor

CVE-2017-16058 Vulnerability in npm package gruntcli

CVE-2019-1003041 Vulnerability in maven package org.jenkins-ci.plugins:groovy

CVE-2019-10317 Vulnerability in maven package org.jvnet.hudson.plugins:sitemonitor

CVE-2017-12647 Vulnerability in maven package com.liferay:com.liferay.knowledge.base.service

Severity

Critical

Classification

CWE-330 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Tags

Third Party Advisory