Vulnerability Information
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Vulnerability Title
Parse Server: LiveQuery subscription with invalid regular expression crashes server
Vulnerability Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.19 and 8.6.43, a remote attacker can crash the Parse Server by subscribing to a LiveQuery with an invalid regular expression pattern. The server process terminates when the invalid pattern reaches the regex engine during subscription matching, causing denial of service for all connected clients. The fix in 9.6.0-alpha.19 and 8.6.43 validates regular expression patterns at subscription time, rejecting invalid patterns before they are stored. Additionally, a defense-in-depth try-catch prevents any subscription matching error from crashing the server process. As a workaround, disable LiveQuery if it is not needed.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
未捕获的异常
Vulnerability Title
Parse Server 安全漏洞
Vulnerability Description
Parse Server是Parse Platform开源的一个开源后端，可以部署到任何可以运行 Node.js 的基础设施。 Parse Server 9.6.0-alpha.19之前版本和8.6.43之前版本存在安全漏洞，该漏洞源于无效正则表达式模式可导致服务器崩溃，可能导致拒绝服务。
CVSS Information
N/A
Vulnerability Type
N/A