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Red Hat Enterprise Linux: yggdrasil-worker-package-manager privilege escalation

A vulnerability in the yggdrasil-worker-package-manager component of Red Hat Enterprise Linux allows a remote attacker to achieve privilege escalation, enabling unauthorized file creation, overwriting, or deletion with root privileges.

Triage facts

Revision 1
Applicability
Red Hat Enterprise Linux
Evidence
Unknown
Severity
High
Action
Elevated
Sources
1 public source
Freshness
Revision 1Nov 9, 16:06 UTC
Source quality
A1Likely

A vulnerability has been identified in the yggdrasil-worker-package-manager component within Red Hat Enterprise Linux. This flaw permits a remote attacker to perform unauthorized file operations, including creation, overwriting, or deletion, while operating with root-level privileges.

Impact

The vulnerability results in unauthorized modification or deletion of files on the filesystem with the privileges of the root user, potentially leading to full system compromise or service disruption.

Recommendation

  • Identify all RHEL systems running the yggdrasil-worker-package-manager component.
  • Monitor for security advisories from Red Hat regarding this component and apply the provided patches or configuration mitigations as soon as they become available.
  • Implement file integrity monitoring (FIM) on critical system paths to detect unauthorized file creation or modification events by the yggdrasil worker process.

Immediate actions

Inventory RHEL systems running the yggdrasil-worker-package-manager package

IT Operations 24h

Threat Hunt

Monitor system logs and auditd for unexpected file creation or modification in protected system directories performed by the yggdrasil-worker-package-manager process.

T1068 medium medium confidence hunt now

Data: auditd logs, system integrity monitoring logs

Mitigations

Apply relevant security patches from Red Hat as soon as released for the yggdrasil package.

immediate IT Operations

yggdrasil-worker-package-manager privilege escalation