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I. Basic Information for CVE-2023-37266
Vulnerability Information
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Vulnerability Title
Weak json web token (JWT) secrets in CasaOS
Source: NVD (National Vulnerability Database)
Vulnerability Description
CasaOS is an open-source Personal Cloud system. Unauthenticated attackers can craft arbitrary JWTs and access features that usually require authentication and execute arbitrary commands as `root` on CasaOS instances. This problem was addressed by improving the validation of JWTs in commit `705bf1f`. 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
CasaOS 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CasaOS是一个简单、易用、优雅的开源家庭云系统。 CasaOS 0.4.4之前版本存在授权问题漏洞。攻击者利用该漏洞可以制作任意JWT和访问通常需要身份验证的功能，并以root身份执行任意命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
IceWhaleTechCasaOS < 0.4.4 -
II. Public POCs for CVE-2023-37266
#POC DescriptionSource LinkShenlong Link
1CasaOS is an open-source Personal Cloud system. Unauthenticated attackers can craft arbitrary JWTs and access features that usually require authentication and execute arbitrary commands as `root` on CasaOS instances. This problem was addressed by improving the validation of JWTs in commit `705bf1f`. 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. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-37266.yamlPOC Details
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III. Intelligence Information for CVE-2023-37266
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IV. Related Vulnerabilities
Same product: CasaOS
Same vendor: IceWhaleTech
Same weakness: CWE-287
V. Comments for CVE-2023-37266

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