mirror of
https://github.com/splunk/security_content
synced 2026-06-08 17:32:49 +00:00
Bhavin Patel
68 lines
2.4 KiB
YAML
68 lines
2.4 KiB
YAML
name: Web Spring4Shell HTTP Request Class Module
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id: fcdfd69d-0ca3-4476-920e-9b633cb4593e
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version: 1
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date: '2022-04-06'
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author: Michael Haag, Splunk
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status: production
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type: TTP
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description: The following analytic identifies the payload related to Spring4Shell,
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CVE-2022-22965. This analytic uses Splunk Stream HTTP to view the http request body,
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form data. STRT reviewed all the current proof of concept code and determined the
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commonality with the payloads being passed used the same fields "class.module.classLoader.resources.context.parent.pipeline.first".
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data_source: []
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search: '`stream_http` http_method IN ("POST") | stats values(form_data) as http_request_body
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min(_time) as firstTime max(_time) as lastTime count by src dest http_method http_user_agent
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uri_path url bytes_in bytes_out | search http_request_body IN ("*class.module.classLoader.resources.context.parent.pipeline.first.fileDateFormat=_*",
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"*class.module.classLoader.resources.context.parent.pipeline.first.pattern*","*suffix=.jsp*")
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| `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `web_spring4shell_http_request_class_module_filter`'
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how_to_implement: To successfully implement this search, you need to be ingesting
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logs with the stream HTTP logs or network logs that catch network traffic. Make
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sure that the http-request-body, payload, or request field is enabled.
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known_false_positives: False positives may occur and filtering may be required. Restrict
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analytic to asset type.
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references:
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- https://github.com/DDuarte/springshell-rce-poc/blob/master/poc.py
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tags:
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analytic_story:
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- Spring4Shell CVE-2022-22965
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asset_type: Web Server
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confidence: 80
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cve:
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- CVE-2022-22965
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impact: 90
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message: A http body request related to Spring4Shell has been sent to $dest$ by
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$src$.
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mitre_attack_id:
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- T1190
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- T1133
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observable:
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- name: dest
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type: Hostname
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role:
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- Victim
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- name: src
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type: IP Address
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role:
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- Attacker
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product:
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- Splunk Enterprise
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- Splunk Enterprise Security
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- Splunk Cloud
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required_fields:
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- _time
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- http_request_body
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- http_method
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- http_user_agent
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- uri_path
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- url
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- bytes_in
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- bytes_out
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risk_score: 72
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security_domain: network
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tests:
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- name: True Positive Test
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attack_data:
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- data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1190/spring4shell/http_request_body_streams.log
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source: stream:http
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sourcetype: stream:http
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