Web Application Suspicious Activity: Unauthorized Method

 1[metadata]
 2creation_date = "2020/02/18"
 3integration = ["apm"]
 4maturity = "production"
 5updated_date = "2024/05/21"
 6
 7[rule]
 8author = ["Elastic"]
 9description = """
10A request to a web application returned a 405 response, which indicates the web application declined to process the
11request because the HTTP method is not allowed for the resource.
12"""
13false_positives = [
14    """
15    Security scans and tests may result in these errors. Misconfigured or buggy applications may produce large numbers
16    of these errors. If the source is unexpected, the user unauthorized, or the request unusual, these may indicate
17    suspicious or malicious activity.
18    """,
19]
20index = ["apm-*-transaction*", "traces-apm*"]
21language = "kuery"
22license = "Elastic License v2"
23name = "Web Application Suspicious Activity: Unauthorized Method"
24references = ["https://en.wikipedia.org/wiki/HTTP_405"]
25risk_score = 47
26rule_id = "75ee75d8-c180-481c-ba88-ee50129a6aef"
27severity = "medium"
28tags = ["Data Source: APM"]
29timestamp_override = "event.ingested"
30type = "query"
31
32query = '''
33http.response.status_code:405
34'''