The GENERATE_SEED macro in PHP 4.x before 4.4.8 and 5.x before 5.2.5, when running on 64-bit systems, performs a multiplication that generates a portion of zero bits during conversion due to insufficient precision, which produces 24 bits of entropy and simplifies brute force attacks against protection mechanisms that use the rand and mt_rand functions.

Threat-Mapped Scoring

Score: 1.8

Priority: P4 - Informational (Low)

• S9 – Sabotage of System/App

EPSS

Score: 0.04738
Percentile: 0.88957

CVSS Scoring

Mapped CWE(s)

• CWE-331 : Insufficient Entropy

All CAPEC(s)

CAPEC(s) with Mapped TTPs

Mapped ATT&CK TTPs

Affected Products

• cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
• cpe:2.3:o:fedoraproject:fedora:8:*:*:*:*:*:*:*
• cpe:2.3:o:fedoraproject:fedora:9:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:7.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:*
• cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*

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