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Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLThxODktcHdoaC03d2Zx
Use of Insufficiently Random Values in penggle:kaptcha
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.
Permalink: https://github.com/advisories/GHSA-8q89-pwhh-7wfqJSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLThxODktcHdoaC03d2Zx
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Critical
Classification: General
Published: over 5 years ago
Updated: over 1 year ago
CVSS Score: 9.8
CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Identifiers: GHSA-8q89-pwhh-7wfq, CVE-2018-18531
References:
- https://nvd.nist.gov/vuln/detail/CVE-2018-18531
- https://github.com/penggle/kaptcha/issues/3
- https://github.com/advisories/GHSA-8q89-pwhh-7wfq
Blast Radius: 36.4
Affected Packages
maven:com.github.penggle:kaptcha
Dependent packages: 98Dependent repositories: 5,216
Downloads:
Affected Version Ranges: <= 2.3.2
No known fixed version
All affected versions: 2.3.2