Potential Buffer Overflow Attack Detected
editPotential Buffer Overflow Attack Detected
editDetects potential buffer overflow attacks by querying the "Segfault Detected" pre-built rule signal index, through a threshold rule, with a minimum number of 100 segfault alerts in a short timespan. A large amount of segfaults in a short time interval could indicate application exploitation attempts.
Rule type: threshold
Rule indices:
- .alerts-security.*
Severity: low
Risk score: 21
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References: None
Tags:
- Domain: Endpoint
- OS: Linux
- Use Case: Threat Detection
- Tactic: Privilege Escalation
- Tactic: Initial Access
- Use Case: Vulnerability
- Rule Type: Higher-Order Rule
Version: 3
Rule authors:
- Elastic
Rule license: Elastic License v2
Setup
editSetup
This rule leverages alert data from other prebuilt detection rules to function correctly.
Dependent Elastic Detection Rule Enablement
As a higher-order rule (based on other detections), this rule also requires the following prerequisite Elastic detection rule to be installed and enabled: - Segfault Detected (5c81fc9d-1eae-437f-ba07-268472967013)
Rule query
editkibana.alert.rule.rule_id:"5c81fc9d-1eae-437f-ba07-268472967013" and host.os.type:linux and event.kind:signal
Framework: MITRE ATT&CKTM
-
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/
-
Tactic:
- Name: Initial Access
- ID: TA0001
- Reference URL: https://attack.mitre.org/tactics/TA0001/
-
Technique:
- Name: Exploit Public-Facing Application
- ID: T1190
- Reference URL: https://attack.mitre.org/techniques/T1190/