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Lemur manages TLS certificate creation. Prior to 1.9.0, when LDAP TLS is enabled (LDAP_USE_TLS = True), Lemur's LDAP authentication module unconditionally disables TLS certificate verification at the global ldap module level. This allows a man-in-the-middle attacker positioned between Lemur and the LDAP server to intercept all authentication credentials. This vulnerability is fixed in 1.9.0.
Base Score
6.8| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| lemur(PyPI) | 0 | 1.9.0 | N/A |
| Base Score | 6.8 |
|---|---|
| Vector String | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N |
| Base Severity | Medium |
| Version | 3.1 |
| Attack Vector (AV) | ADJACENT_NETWORK |
