Graylog Allows Session Takeover via Insufficient HTML Sanitization

Graylog is a free and open log management platform. Prior to versions 6.0.14, 6.1.10, and 6.2.0, it is possible to obtain user session cookies by submitting an HTML form as part of an Event Definition Remediation Step field. For this attack to succeed, the attacker needs a user account with permissions to create event definitions, while the user must have permissions to view alerts. Additionally, an active Input must be present on the Graylog server that is capable of receiving form data (e.g. a HTTP input, TCP raw or syslog etc). Versions 6.0.14, 6.1.10, and 6.2.0 fix the issue. No known workarounds are available, as long as the relatively rare prerequisites are met.

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

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

Graylog 跨站脚本漏洞

Graylog是美国Graylog公司的一套集中式日志管理解决方案。该产品支持捕获、存储和实时分析日志等。 Graylog 6.2.0之前版本存在跨站脚本漏洞，该漏洞源于事件定义修复步骤字段中可提交HTML表单获取用户会话cookie。

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