CVE-2021-21402 PoC — Unauthenticated Arbitrary File Access in Jellyfin

Source

https://github.com/jiaocoll/CVE-2021-21402-Jellyfin

Associated Vulnerability

Title: Unauthenticated Arbitrary File Access in Jellyfin (CVE-2021-21402)
Description:Jellyfin is a Free Software Media System. In Jellyfin before version 10.7.1, with certain endpoints, well crafted requests will allow arbitrary file read from a Jellyfin server's file system. This issue is more prevalent when Windows is used as the host OS. Servers that are exposed to the public Internet are potentially at risk. This is fixed in version 10.7.1. As a workaround, users may be able to restrict some access by enforcing strict security permissions on their filesystem, however, it is recommended to update as soon as possible.

Description

CVE-2021-21402-Jellyfin-任意文件读取

Readme

# CVE-2021-21402-Jellyfin-任意文件读取

**此POC仅用于学习交流，由此产生的一切后果本人不承担**

python POC.py targets.txt

File Snapshot

Remarks

1. It is advised to access via the original source first.

2. Local POC snapshots are reserved for subscribers — if the original source is unavailable, the local mirror is part of the paid plan.

View subscription plans →