Adversaries may attempt to get a listing of local system accounts. This information can help adversaries determine which local accounts exist on a system to aid in follow-on behavior.
Commands such as <code>net user</code> and <code>net localgroup</code> of the Net utility and <code>id</code> and <code>groups</code> on macOS and Linux can list local users and groups.(Citation: Mandiant APT1)(Citation: id man page)(Citation: groups man page) On Linux, local users can also be enumerated through the use of the <code>/etc/passwd</code> file. On macOS the <code>dscl . list /Users</code> command can be used to enumerate local accounts.
View in MITRE ATT&CK®| Capability ID | Capability Description | Mapping Type | ATT&CK ID | ATT&CK Name | Notes |
|---|---|---|---|---|---|
| CVE-2023-27532 | Veeam Backup & Replication Cloud Connect Missing Authentication for Critical Function Vulnerability | secondary_impact | T1087.001 | Local Account |
Comments
CVE-2023-27532 is a vulnerability in their backup & replication servers exposed online which allows unauthenticated users to request encrypted credentials. Public reporting has indicated that various ransomware groups have exploited vulnerability to gain access and crash the backup infrastructure hosts, extract stored encrypted credentials, and deploy additional tools.
References
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