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Cacti 0.8.6e and earlier does not perform proper input validation to protect against common attacks, which allows remote attackers to execute arbitrary commands or SQL by sending a legitimate value in a POST request or cookie, then specifying the attack string in the URL, which causes the get_request_var function to return the wrong value in the $_REQUEST variable, which is cleansed while the original malicious $_GET value remains unmodified, as demonstrated in (1) graph_image.php and (2) graph.php.

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Cacti 输入验证漏洞

Cacti是一款轮循数据库(RRD)工具，可帮助从数据库信息创建图形。 Cacti 0.8.6e及之前版本中存在实现上存在输入验证漏洞。 由于没有正确校验用户输入，远程攻击者可通过POST请求或cookie，将攻击代码放置于URL内，这将导致get_request_var函数从$_REQUEST返回错误的值，攻击者利用此漏洞可在服务器上执行任意命令或SQL操作。

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