Description
The GitLab 'internal' API is exposed unauthenticated on GitLab. This allows the username for each SSH Key ID number to be retrieved. Users who do not have an SSH Key cannot be enumerated in this fashion. LDAP users, e.g. Active Directory users will also be returned. This issue was fixed in GitLab v7.5.0 and is present from GitLab v5.0.0.
Module options
To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':
msf > use auxiliary/scanner/http/gitlab/user_enummsf undefined(user_enum) > show actions ...actions...msf undefined(user_enum) > set ACTION < action-name >msf undefined(user_enum) > show options ...show and set options...msf undefined(user_enum) > runPrioritise with Active Threat Intelligence
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