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I. Basic Information for CVE-2020-26214
Vulnerability Information

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Vulnerability Title
LDAP authentication bypass in Alerta
Source: NVD (National Vulnerability Database)
Vulnerability Description
In Alerta before version 8.1.0, users may be able to bypass LDAP authentication if they provide an empty password when Alerta server is configure to use LDAP as the authorization provider. Only deployments where LDAP servers are configured to allow unauthenticated authentication mechanism for anonymous authorization are affected. A fix has been implemented in version 8.1.0 that returns HTTP 401 Unauthorized response for any authentication attempts where the password field is empty. As a workaround LDAP administrators can disallow unauthenticated bind requests by clients.
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:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
认证机制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Alerta 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Alerta是个人开发者的一个 Python 编写的监控系统。 Alerta 8.1.0 之前版本存在授权问题漏洞,该漏洞源于用户在将Alerta服务器配置为使用LDAP作为授权提供程序时提供一个空密码,那么他们就可以绕过LDAP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
alertaalerta < 8.1.0 -
II. Public POCs for CVE-2020-26214
#POC DescriptionSource LinkShenlong Link
1Alerta prior to version 8.1.0 is prone to authentication bypass when using LDAP as an authorization provider and the LDAP server accepts Unauthenticated Bind requests.https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-26214.yamlPOC Details
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III. Intelligence Information for CVE-2020-26214
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