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GHSA-5hmm-x8q8-w5jh
No affected components available
Impact
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 binds (eg. default on Active Directory) are affected.
Patches
A fix has been implemented that returns HTTP 401 Unauthorized response for any authentication attempts where the password field is empty. See https://github.com/alerta/alerta/pull/1345
Workarounds
LDAP administrators can disallow unauthenticated bind requests by clients.
References
https://tools.ietf.org/html/rfc4513#section-5.1.2 https://pypi.org/project/alerta-server/8.1.0/
For more information
If you have any questions or comments about this advisory:
- Add a comment to the issue #1277
- Email us at admin@alerta.dev
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data.
Exploitation activity has been observed. Apply available patches or mitigations urgently.
The exploit probability is very high. The vulnerability is very likely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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