漏洞信息
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Vulnerability Title
Phalcon: Non-constant-time HMAC verification in `Encryption\Crypt::decrypt` (timing side-channel)
Vulnerability Description
Phalcon is a high-performance, full-stack PHP framework. Prior to 5.14.1, Phalcon\Encryption\Crypt::decrypt compares the attacker-supplied HMAC tag against the freshly computed HMAC using PHP/Zephir identity comparison, which lowers to a byte-wise comparison that returns early on the first differing byte. This observable timing discrepancy can allow an attacker to recover a valid tag byte-by-byte and attach it to a chosen IV and ciphertext so that decrypt() accepts tampered encrypted content as authentic. This issue is fixed in version 5.14.1.
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Vulnerability Type
通过时间差异性导致的信息暴露
Vulnerability Title
Phalcon 侧信道信息泄露漏洞
Vulnerability Description
Phalcon Phalcon是Phalcon公司开源的一个以 C 扩展形式交付的高性能、全栈 PHP 框架,能显著降低资源消耗。 Phalcon 5.14.1之前版本存在安全漏洞,该漏洞源于Phalcon\Encryption\Crypt::decrypt函数使用PHP/Zephir身份比较,导致可观察的时间差异,攻击者可以利用此漏洞逐个字节恢复有效标签,并将附加到选择的IV和密文,从而使decrypt()接受被篡改的加密内容。
CVSS Information
N/A
Vulnerability Type
N/A