GHSA-2fhr-8r8r-qp56

Suggest an improvement
Source
https://github.com/advisories/GHSA-2fhr-8r8r-qp56
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/06/GHSA-2fhr-8r8r-qp56/GHSA-2fhr-8r8r-qp56.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-2fhr-8r8r-qp56
Published
2024-06-07T20:37:45Z
Modified
2024-06-07T20:46:12.402216Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
ZendFramework Information Disclosure and Insufficient Entropy vulnerability
Details

In Zend Framework, Zend_Captcha_Word (v1) and Zend\Captcha\Word (v2) generate a "word" for a CAPTCHA challenge by selecting a sequence of random letters from a character set. Prior to this advisory, the selection was performed using PHP's internal array_rand() function. This function does not generate sufficient entropy due to its usage of rand() instead of more cryptographically secure methods such as openssl_pseudo_random_bytes(). This could potentially lead to information disclosure should an attacker be able to brute force the random number generation.

References

Affected packages

Packagist / zendframework/zendframework

Package

Name
zendframework/zendframework
Purl
pkg:composer/zendframework/zendframework

Affected ranges

Type
ECOSYSTEM
Events
Introduced
2.0.0
Fixed
2.4.9

Affected versions

2.*

2.0.0
2.0.1
2.0.2
2.0.3
2.0.4
2.0.5
2.0.6
2.0.7
2.0.8
2.1.0
2.1.1
2.1.2
2.1.3
2.1.4
2.1.5
2.1.6
2.2.0rc1
2.2.0rc2
2.2.0rc3
2.2.0
2.2.1
2.2.2
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.2.8
2.2.9
2.2.10
2.3.0
2.3.1
2.3.2
2.3.3
2.3.4
2.3.5
2.3.6
2.3.7
2.3.8
2.3.9
2.4.0rc1
2.4.0rc2
2.4.0rc3
2.4.0rc4
2.4.0rc5
2.4.0rc6
2.4.0rc7
2.4.0
2.4.1
2.4.2
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8