CVE-2020-26214
CRITICAL9.1EPSS 88.9%LDAP authentication bypass with empty password
描述
### 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](https://github.com/alerta/alerta/issues/1277) * Email us at [[email protected]](mailto:[email protected])
受影響套件(2)
- PyPI/alerta-server>= 8.0.0, < 8.1.0
- PyPI/alerta-serverfrom 0, < 2bfa31779a4c9df2fa68fa4d0c5c909698c5ef65 | from 0, < 7.5.7, >= 8.0.0, < 8.1.0
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
參考連結(10)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2020-26214
- PATCHhttps://github.com/alerta/alerta
- PATCHhttps://pypi.org/project/alerta-server/8.1.0/
- WEBhttps://github.com/alerta/alerta/commit/2bfa31779a4c9df2fa68fa4d0c5c909698c5ef65
- WEBhttps://github.com/alerta/alerta/issues/1277
- WEBhttps://github.com/alerta/alerta/pull/1345
- WEBhttps://github.com/alerta/alerta/security/advisories/GHSA-5hmm-x8q8-w5jh
- WEBhttps://github.com/pypa/advisory-database/tree/main/vulns/alerta-server/PYSEC-2020-159.yaml
- WEBhttps://pypi.org/project/alerta-server/8.1.0
- WEBhttps://tools.ietf.org/html/rfc4513#section-5.1.2