Vulnerability: Incomplete IV Usage in AES-CCM Mode Encryption in PHP

Vulnerability: Incomplete IV Usage in AES-CCM Mode Encryption in PHP

CVE-2020-7069 · MEDIUM Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

In PHP versions 7.2.x below 7.2.34, 7.3.x below 7.3.23 and 7.4.x below 7.4.11, when AES-CCM mode is used with openssl_encrypt() function with 12 bytes IV, only first 7 bytes of the IV is actually used. This can lead to both decreased security and incorrect encryption data.

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