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HIGH severity

ZendFramework1 Potential Insufficient Entropy VulnerabilityGHSA-8xhv-gqm4-3w99

HIGH

GHSA-8xhv-gqm4-3w99 is a high-severity (CVSS 7.5) vulnerability in zendframework/zendframework1. A fix is available for zendframework/zendframework1 — see the affected versions and patch details below.

Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Dec 4, 2024 · OSV.dev, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🐘zendframework/zendframework1

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

We discovered several methods used to generate random numbers in ZF1 that potentially used insufficient entropy. These random number generators are used in the following method calls:

Zend_Ldap_Attribute::createPassword
Zend_Form_Element_Hash::_generateHash
Zend_Gdata_HttpClient::filterHttpRequest
Zend_Filter_Encrypt_Mcrypt::_srand
Zend_OpenId::randomBytes

In each case, the methods were using rand() or mt_rand(), neither of which can generate cryptographically secure values. This could potentially lead to information disclosure should an attacker be able to brute force the random number generation.

Moreover, we discovered a potential security issue in the usage of the openssl_random_pseudo_bytes() function in Zend_Crypt_Math::randBytes, reported in PHP BUG #70014, and the security implications reported in a discussion on the random_compat library.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistzendframework/zendframework1≥ 1.12.0&&< 1.12.181.12.18composer require zendframework/zendframework1:^1.12.18

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for zendframework/zendframework1, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update zendframework/zendframework1 to 1.12.18 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-8xhv-gqm4-3w99 is resolved across your whole dependency graph.

  3. Workarounds

    Assume what was exposed is already known: rotate any credential, token or key that the affected component could return, restrict the endpoint to callers that genuinely need it, and strip sensitive fields from responses and error output at the boundary rather than relying on the client not to read them.

Frequently Asked Questions

We discovered several methods used to generate random numbers in ZF1 that potentially used insufficient entropy. These random number generators are used in the following method calls: ``` Zend_Ldap_Attribute::createPassword Zend_Form_Element_Hash::_generateHash Zend_Gdata_HttpClient::filterHttpRequest Zend_Filter_Encrypt_Mcrypt::_srand Zend_OpenId::randomBytes ``` In each case, the methods were using rand() or mt_rand(), neither of which can generate cryptographically secure values. This could potentially lead to information disclosure should an attacker be able to brute force the random numbe
O3 Security · Impact-Aware SCA

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