GitHub Advisoryadvisory · Maven

GHSA-8q89-pwhh-7wfq Use of Insufficiently Random Values in penggle:kaptcha

CRITICAL Published 2018-10-23 Modified 2022-09-14 Official page ↗
Aliases
CVE-2018-18531
Ecosystem
Maven
Packages
com.github.penggle:kaptcha
Severity
Critical
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-330
Reviewed
2020-06-16

Affected packages

• Maven com.github.penggle:kaptcha: <= 2.3.2 (no fix yet)

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.

Related

Alias · CVE (1)

  • CVE-2018-18531 text/impl/DefaultTextCreator.java, text/impl/ChineseTextProducer.java, and text/impl/FiveLetterFirstNameTextCreator.java in kaptcha 2.3.2… vulnerability

Weakness · CWE (1)

  • CWE-330 Use of Insufficiently Random Values weakness

References