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I. Basic Information for CVE-2020-4042
Vulnerability Information

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Vulnerability Title
Authentication bypass in Bareos
Source: NVD (National Vulnerability Database)
Vulnerability Description
Bareos before version 19.2.8 and earlier allows a malicious client to communicate with the director without knowledge of the shared secret if the director allows client initiated connection and connects to the client itself. The malicious client can replay the Bareos director's cram-md5 challenge to the director itself leading to the director responding to the replayed challenge. The response obtained is then a valid reply to the directors original challenge. This is fixed in version 19.2.8.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
使用捕获-重放进行的认证绕过
Source: NVD (National Vulnerability Database)
Vulnerability Title
Bareos 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bareos是德国Bareos公司的一套开源的数据备份存储和恢复软件。 Bareos 19.2.8及之前版本中存在安全漏洞。攻击者可利用该漏洞绕过身份验证。
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
bareosbareos < 19.2.8 -
II. Public POCs for CVE-2020-4042
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III. Intelligence Information for CVE-2020-4042
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IV. Related Vulnerabilities
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