CVE-2019-16782— RubyGem Rack 信息泄露漏洞

Possible Information Leak / Session Hijack Vulnerability in Rack

There's a possible information leak / session hijack vulnerability in Rack (RubyGem rack). This vulnerability is patched in versions 1.6.12 and 2.0.8. Attackers may be able to find and hijack sessions by using timing attacks targeting the session id. Session ids are usually stored and indexed in a database that uses some kind of scheme for speeding up lookups of that session id. By carefully measuring the amount of time it takes to look up a session, an attacker may be able to find a valid session id and hijack the session. The session id itself may be generated randomly, but the way the session is indexed by the backing store does not use a secure comparison.

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

通过时间差异性导致的信息暴露

RubyGem Rack 信息泄露漏洞

RubyGem Rack是一款使用Ruby编程语言开发的Web服务器和Web应用程序之间的模块化接口。 RubyGem Rack 中存在安全漏洞。攻击者可通过对会话ID进行时序攻击利用该漏洞劫持会话。

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