Web Application Suspicious Activity: Unauthorized Method

 1[metadata]
 2creation_date = "2020/02/18"
 3integration = ["apm"]
 4maturity = "production"
 5min_stack_comments = "New fields added: required_fields, related_integrations, setup"
 6min_stack_version = "8.3.0"
 7updated_date = "2023/06/22"
 8
 9[rule]
10author = ["Elastic"]
11description = """
12A request to a web application returned a 405 response, which indicates the web application declined to process the
13request because the HTTP method is not allowed for the resource.
14"""
15false_positives = [
16    """
17    Security scans and tests may result in these errors. Misconfigured or buggy applications may produce large numbers
18    of these errors. If the source is unexpected, the user unauthorized, or the request unusual, these may indicate
19    suspicious or malicious activity.
20    """,
21]
22index = ["apm-*-transaction*", "traces-apm*"]
23language = "kuery"
24license = "Elastic License v2"
25name = "Web Application Suspicious Activity: Unauthorized Method"
26references = ["https://en.wikipedia.org/wiki/HTTP_405"]
27risk_score = 47
28rule_id = "75ee75d8-c180-481c-ba88-ee50129a6aef"
29severity = "medium"
30tags = ["Data Source: APM"]
31timestamp_override = "event.ingested"
32type = "query"
33
34query = '''
35http.response.status_code:405
36'''