Sudo Privilege Escalation CVE-2019-14287

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

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

Known false positives

Unlikely

MITRE ATT&CK coverage

Tactic	Techniques
Privilege Escalation	`T1068` Exploitation for Privilege Escalation `T1548.003` Abuse Elevation Control Mechanism: Sudo and Sudo Caching

Telemetry coverage

Platform	Record / event type
Linux	Event ID 1: Process Create

Rule body

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

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`CommandLine`	match	`-u#`	`field:"CommandLine" kind:match value:" -u#"`

Sudo Privilege Escalation CVE-2019-14287

Known false positives

MITRE ATT&CK coverage

Telemetry coverage

Rule body

Stages and Predicates

Stage 0: condition

Stage 1: selection

Indicators

Stage 0: `condition`

Stage 1: `selection`