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Vulnerability DatabaseGHSA-q8fc-v85f-78pw
GHSA-q8fc-v85f-78pw:
PHP vulnerability analysis and mitigation
Overview
The vulnerability (GHSA-q8fc-v85f-78pw) affects the stormpath/sdk PHP package and involves the use of an insecure random number generator (RNG) in UUID generation. The issue was discovered in versions <= 1.19.0, with no patched versions available. The vulnerability was disclosed and published to the GitHub Advisory Database on May 29, 2024 (GitHub Advisory).
Technical details
The vulnerability stems from the usage of mtrand() function for generating UUID version 4 within the codebase, specifically in the UUID.php file. The implementation uses mtrand() for generating various components of the UUID, including timehi, clockseqhi, timelow, timemid, clockseqlow, and node values. Additionally, there is an insecure RNG fallback in ApiKeyEncryptionOptions.php that uses md5(uniqid()) when opensslrandompseudobytes is not available. The vulnerability has been assigned a CVSS v3.1 score of 5.3 (Moderate severity) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N (GitHub Advisory).
Impact
The use of a weak random number generator could potentially lead to predictable UUID generation, affecting the integrity of the system's unique identifiers. The vulnerability primarily impacts the integrity of the system with a low severity rating, while confidentiality and availability remain unaffected (GitHub Advisory).
Mitigation and workarounds
No official patch has been released for this vulnerability. Security researchers have recommended using the randomcompat library as an alternative, which provides a polyfill for PHP 7's randombytes and random_int functions, offering more secure random number generation (Stormpath Issue).
Community reactions
The issue was initially reported and discussed in GitHub issue #132 of the stormpath-sdk-php repository. The discussion involved security researchers and project maintainers debating the importance of using cryptographically secure random number generators for UUID generation, with some emphasizing the significance of using proper CSPRNGs for security-critical applications (Stormpath Issue).
Additional resources
Source: This report was generated using AI
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