PsiTransfer file integrity violation vulnerability

PsiTransfer is an open source, self-hosted file sharing solution. Prior to version 2.2.0, the absence of restrictions on the endpoint, which is designed for uploading files, allows an attacker who received the id of a file distribution to change the files that are in this distribution. The vulnerability allows an attacker to influence those users who come to the file distribution after them and slip the victim files with a malicious or phishing signature. Version 2.2.0 contains a patch for this issue. CVE-2024-31454 allows users to violate the integrity of a file that is uploaded by another user. In this case, additional files are not loaded into the file bucket. Violation of integrity at the level of individual files. While the vulnerability with the number CVE-2024-31453 allows users to violate the integrity of a file bucket without violating the integrity of files uploaded by other users. Thus, vulnerabilities are reproduced differently, require different security recommendations and affect different objects of the application’s business logic.

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

危险类型文件的不加限制上传

PsiTransfer 安全漏洞

PsiTransfer是Christoph Wiechert个人开发者的一个简单的开源自托管文件共享解决方案。 PsiTransfer 2.2.0 之前版本存在安全漏洞，该漏洞源于端点没有限制，接收到文件分发 ID 的攻击者可以更改在此发行中的文件，攻击者利用该漏洞可以使用恶意或网络钓鱼签名来窃取受害者文件。

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