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I. Basic Information for CVE-2021-32744
Vulnerability Information

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Vulnerability Title
Unauthenticated attacker could gain access to currently open files
Source: NVD (National Vulnerability Database)
Vulnerability Description
Collabora Online is a collaborative online office suite. In versions prior to 4.2.17-1 and version 6.4.9-5, unauthenticated attackers are able to gain access to files which are currently opened by other users in the Collabora Online editor. For successful exploitation the attacker is required to guess the file identifier - the predictability of this file identifier is dependent on external file-storage implementations (this is a potential "IDOR" - Insecure Direct Object Reference - vulnerability). Versions 4.2.17-1 and 6.4.9-5 contain patches for this issue. There is no known workaround except updating the Collabora Online application to one of the patched releases.
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
通过用户控制密钥绕过授权机制
Source: NVD (National Vulnerability Database)
Vulnerability Title
Collabora Online 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Collabora Online是 Collabora 的一个应用软件。一个强大的基于 LibreOffice 的在线办公室,支持所有主要的文档、电子表格和演示文件格式。 Collabora Online 4.2.17-1到6.4.9-5版本存在安全漏洞,未经身份验证的攻击者能够访问其他用户当前在 Collabora Online 编辑器中打开的文件。
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
CollaboraOnlineonline < 4.2.17-1 -
II. Public POCs for CVE-2021-32744
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III. Intelligence Information for CVE-2021-32744
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IV. Related Vulnerabilities
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