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Potential Privilege Escalation via Enlightenment

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Potential Privilege Escalation via Enlightenment

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Identifies an attempt to exploit a local privilege escalation CVE-2022-37706 via a flaw in Linux window manager package Enlightenment. enlightenment_sys in Enlightenment before 0.25.4 allows local users to gain privileges because it is setuid root, and the system library function mishandles pathnames that begin with a /dev/.. substring.

Rule type: eql

Rule indices:

logs-endpoint.events.*

Severity: high

Risk score: 73

Runs every: 5m

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

Tags:

Domain: Endpoint
OS: Linux
Use Case: Threat Detection
Tactic: Privilege Escalation
Use Case: Vulnerability
Data Source: Elastic Defend

Version: 1

Rule authors:

Elastic

Rule license: Elastic License v2

Rule query

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sequence by host.id, process.parent.entity_id with maxspan=5s
  [process where host.os.type == "linux" and event.action == "exec" and event.type == "start" and
    process.name == "enlightenment_sys" and process.args in ("/bin/mount/", "-o","noexec","nosuid","nodev","uid=*") ]
  [process where host.os.type == "linux" and event.action == "uid_change" and event.type == "change" and user.id == "0"]

Framework: MITRE ATT&CK^TM

Tactic:
- Name: Privilege Escalation
- ID: TA0004
- Reference URL: https://attack.mitre.org/tactics/TA0004/
Technique:
- Name: Exploitation for Privilege Escalation
- ID: T1068
- Reference URL: https://attack.mitre.org/techniques/T1068/

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