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Detection rules › Sigma

Sudo Privilege Escalation CVE-2019-14287

Status
test
Severity
high
Log source
product linux, category process_creation
Author
Florian Roth (Nextron Systems)
Source
github.com/SigmaHQ/sigma

Detects users trying to exploit sudo vulnerability reported in CVE-2019-14287

MITRE ATT&CK coverage

TacticTechniques
Privilege EscalationT1068 Exploitation for Privilege Escalation, T1548.003 Abuse Elevation Control Mechanism: Sudo and Sudo Caching

Event coverage

ProviderEvent
Sysmon-for-LinuxEvent ID 1

Rule body yaml

title: Sudo Privilege Escalation CVE-2019-14287
id: f74107df-b6c6-4e80-bf00-4170b658162b
status: test
description: Detects users trying to exploit sudo vulnerability reported in CVE-2019-14287
references:
    - https://www.openwall.com/lists/oss-security/2019/10/14/1
    - https://access.redhat.com/security/cve/cve-2019-14287
    - https://twitter.com/matthieugarin/status/1183970598210412546
author: Florian Roth (Nextron Systems)
date: 2019-10-15
modified: 2022-10-05
tags:
    - attack.privilege-escalation
    - attack.t1068
    - attack.t1548.003
    - cve.2019-14287
    - detection.emerging-threats
logsource:
    product: linux
    category: process_creation
detection:
    selection:
        CommandLine|contains: ' -u#'
    condition: selection
falsepositives:
    - Unlikely
level: high

Stages and Predicates

Stage 0: condition

selection

Stage 1: selection

selection:
    CommandLine|contains: ' -u#'

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
CommandLinematch
  • -u#