CVE-2024-27927 Information

Description

RSSHub is an open source RSS feed generator. Prior to version 1.0.0-master.a429472 RSSHub allows remote attackers to use the server as a proxy to send HTTP GET requests to arbitrary targets and retrieve information in the internal network or conduct Denial-of-Service (DoS) attacks. The attacker can send malicious requests to a RSSHub server to make the server send HTTP GET requests to arbitrary destinations and see partial responses. This may lead to leak the server IP address which could be hidden behind a CDN; retrieving information in the internal network e.g. which addresses/ports are accessible the titles and meta descriptions of HTML pages; and denial of service amplification. The attacker could request the server to download some large files or chain several SSRF requests in a single attacker request.

Reference

https://github.com/DIYgod/RSSHub/security/advisories/GHSA-3p3p-cgj7-vgw3 https://github.com/DIYgod/RSSHub/commit/a42947231104a9ec3436fc52cedb31740c9a7069 https://github.com/DIYgod/RSSHub/blob/172f6cfd2b69ea6affdbdedf61e6dde1671f3796/lib/routes/m4/index.js#L10-L14 https://github.com/DIYgod/RSSHub/blob/172f6cfd2b69ea6affdbdedf61e6dde1671f3796/lib/routes/zjol/paper.js#L7-L13 https://github.com/DIYgod/RSSHub/blob/5928c5db2472e101c2f5c3bafed77a2f72edd40a/lib/routes/mastodon/acct.js#L4-L7 https://github.com/DIYgod/RSSHub/blob/5928c5db2472e101c2f5c3bafed77a2f72edd40a/lib/routes/mastodon/utils.js#L85-L105