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.
Advisories
Source ID Title
EUVD EUVD EUVD-2018-0553 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.
Github GHSA Github GHSA GHSA-8q89-pwhh-7wfq Use of Insufficiently Random Values in penggle:kaptcha
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-09-17T04:10:30.464Z

Reserved: 2018-10-19T00:00:00Z

Link: CVE-2018-18531

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-10-19T20:29:00.570

Modified: 2024-11-21T03:56:06.487

Link: CVE-2018-18531

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.