CVE-2020-26214
CRITICAL NUCLEIAlerta < 7.5.7 and 8.0.0-8.1.0 - Authentication Bypass via Empty LDAP Password
Title source: llmExploitation Summary
CVE-2020-26214 has a Nuclei detection template available — see the Nuclei card below for the Shodan/FOFA recon queries.
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.
Nuclei Templates (1)
Alerta < 8.1.0 - Authentication Bypass
CRITICALby CasperGN,daffainfo
References (6)
Core 6
Core References
Third Party Advisory x_refsource_confirm
https://github.com/alerta/alerta/security/advisories/GHSA-5hmm-x8q8-w5jh
Third Party Advisory x_refsource_misc
https://github.com/alerta/alerta/issues/1277
Third Party Advisory x_refsource_misc
https://github.com/alerta/alerta/pull/1345
Patch, Third Party Advisory x_refsource_misc
https://github.com/alerta/alerta/commit/2bfa31779a4c9df2fa68fa4d0c5c909698c5ef65
Third Party Advisory x_refsource_misc
https://pypi.org/project/alerta-server/8.1.0/
Third Party Advisory x_refsource_misc
https://tools.ietf.org/html/rfc4513#section-5.1.2
Scores
CVSS v3
9.1
EPSS
0.6593
EPSS Percentile
99.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Details
CWE
CWE-287
Status
published
Products (2)
alerta_project/alerta
< 7.5.7
pypi/alerta-server
8.0.0 - 8.1.0PyPI
Published
Nov 06, 2020
Tracked Since
Feb 18, 2026