Patchfirst
T1033Discovery

System Owner/User Discovery

Adversaries may attempt to identify the primary user, currently logged in user, set of users that commonly uses a system, or whether a user is actively using the system. They may do this, for example, by retrieving account usernames or by using OS Credential Dumping. The information may be collected in a number of different ways using other Discovery techniques, because user and username details…

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CVEs2
In 2
Reports0

Detections

30 Sigma rules tagged T1033

Sigma rules © SigmaHQ, Detection Rule License 1.1; linked, not reproduced.

CVEs linked to System Owner/User Discovery

2 CVEs, by priority. Each link shows its badge.
  1. CVE-2023-22518Atlassian Confluence Data Center and Server Improper Authorization Vulnerability
    Atlassian · Confluence Data Center and ServerKEVRansomwarePublic exploitCritical · 9.8T1190Exploit Public-Facing ApplicationT1033System Owner/User Discovery+1 more
    MITRE CTID mapping of the KEV entry · primary impact
    >99.9%Top 0.01%
    79.9priority
  2. CVE-2024-4577PHP-CGI OS Command Injection Vulnerability
    PHP Group · PHPKEVRansomwarePublic exploitCritical · 9.8T1190Exploit Public-Facing ApplicationT1059Command and Scripting Interpreter+10 more
    MITRE CTID mapping of the KEV entry · follow-on activity
    >99.9%Top 0.02%
    79.9priority
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