Detection rules › Splunk

Cisco Secure Firewall - Oracle E-Business Suite Exploitation

Status
production
Severity
medium
Group by
dest, src
Author
Nasreddine Bencherchali, Splunk, Talos NTDR
Source
github.com/splunk/security_content

This analytic detects vulnerability exploitation and post-compromise activity associated with Oracle E-Business Suite web-application vulnerabilities, CVE-2025-61882 and CVE-2025-61884. SIDs 65413-65415 detect detect Java.Backdoor.Cl0p variant payload downloads and Java.Backdoor.Cl0p outbound command-and-control connection attempts. SIDs 65456, 65377 and 65378 detect attempts to exploit these vulnerabilities. Security teams should investigate any instances of these signatures, especially if they are found in conjunction with other suspicious network activity or on systems that should not be exposed to such threats.

MITRE ATT&CK coverage

TacticTechniques
Initial AccessT1190 Exploit Public-Facing Application

Rule body splunk

name: Cisco Secure Firewall - Oracle E-Business Suite Exploitation
id: 1c077b8a-95a3-4692-980d-c72fc50e9930
version: 7
creation_date: '2025-04-16'
modification_date: '2026-05-13'
author: Nasreddine Bencherchali, Splunk, Talos NTDR
status: production
type: TTP
description: |
    This analytic detects vulnerability exploitation and post-compromise activity associated with Oracle E-Business Suite web-application vulnerabilities, CVE-2025-61882 and CVE-2025-61884.
    SIDs 65413-65415 detect detect Java.Backdoor.Cl0p variant payload downloads and Java.Backdoor.Cl0p outbound
    command-and-control connection attempts.
    SIDs 65456, 65377 and 65378 detect attempts to exploit these vulnerabilities.
    Security teams should investigate any instances of these signatures, especially if they are found in conjunction with other suspicious network activity or on systems that should not be exposed to such threats.
data_source:
    - Cisco Secure Firewall Threat Defense Intrusion Event
search: |
    `cisco_secure_firewall`
    EventType=IntrusionEvent
    signature_id IN (65377, 65378, 65413, 65414, 65415, 65456)
    | fillnull
    | stats values(signature_id) as signature_id
            values(signature) as signature
            values(class_desc) as class_desc
            values(MitreAttackGroups) as MitreAttackGroups
            values(InlineResult) as InlineResult
            values(InlineResultReason) as InlineResultReason
            values(dest_port) as dest_port
            values(rule) as rule
            values(transport) as transport
            values(app) as app
            min(_time) as firstTime
            max(_time) as lastTime
      by src dest
    | `security_content_ctime(firstTime)`
    | `security_content_ctime(lastTime)`
    | `cisco_secure_firewall___oracle_e_business_suite_exploitation_filter`
how_to_implement: |
    This search requires Cisco Secure Firewall Threat Defense Logs, which
    includes the IntrusionEvent EventType. This search uses an input macro named `cisco_secure_firewall`.
    We strongly recommend that you specify your environment-specific configurations
    (index, source, sourcetype, etc.) for Cisco Secure Firewall Threat Defense logs. Replace the macro definition
    with configurations for your Splunk environment. The search also uses a post-filter
    macro designed to filter out known false positives.
    The logs are to be ingested using the Splunk Add-on for Cisco Security Cloud (https://splunkbase.splunk.com/app/7404).
    The intrusion access policy must also be configured.
known_false_positives: False positives should be unlikely.
references:
    - https://www.oracle.com/security-alerts/alert-cve-2025-61882.html
    - https://www.oracle.com/security-alerts/alert-cve-2025-61884.html
    - https://labs.watchtowr.com/well-well-well-its-another-day-oracle-e-business-suite-pre-auth-rce-chain-cve-2025-61882well-well-well-its-another-day-oracle-e-business-suite-pre-auth-rce-chain-cve-2025-61882/
    - https://cloud.google.com/blog/topics/threat-intelligence/oracle-ebusiness-suite-zero-day-exploitation
drilldown_searches:
    - name: View the detection results for - "$dest$" and "$src$"
      search: '%original_detection_search% | search  dest = "$dest$" and src = "$src$"'
      earliest_offset: $info_min_time$
      latest_offset: $info_max_time$
    - name: View risk events for the last 7 days for - "$dest$"
      search: '| from datamodel Risk.All_Risk | search normalized_risk_object IN ("$dest$") | stats count min(_time) as firstTime max(_time) as lastTime values(search_name) as "Search Name" values(risk_message) as "Risk Message" values(analyticstories) as "Analytic Stories" values(annotations._all) as "Annotations" values(annotations.mitre_attack.mitre_tactic) as "ATT&CK Tactics" by normalized_risk_object | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`'
      earliest_offset: 7d
      latest_offset: "0"
finding:
    title: Network activity associated with Oracle E-Business Suite exploitation detected from source IP $src$ to destination IP $dest$.
    entity:
        field: dest
        type: system
        score: 50
threat_objects:
    - field: signature
      type: signature
    - field: src
      type: ip_address
analytic_story:
    - Cisco Secure Firewall Threat Defense Analytics
    - Oracle E-Business Suite Exploitation
asset_type: Network
mitre_attack_id:
    - T1190
product:
    - Splunk Enterprise
    - Splunk Cloud
    - Splunk Enterprise Security
category: network
security_domain: network
tests:
    - name: True Positive Test
      attack_data:
        - data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/cisco_secure_firewall_threat_defense/oracle_e_business_suite/oracle_e_business_suite.log
          source: not_applicable
          sourcetype: cisco:sfw:estreamer
      test_type: unit

Stages and Predicates

Stage 1: search

`cisco_secure_firewall`
EventType=IntrusionEvent
signature_id IN (65377, 65378, 65413, 65414, 65415, 65456)

Stage 2: fillnull

| fillnull

Stage 3: stats

| stats values(signature_id) as signature_id
        values(signature) as signature
        values(class_desc) as class_desc
        values(MitreAttackGroups) as MitreAttackGroups
        values(InlineResult) as InlineResult
        values(InlineResultReason) as InlineResultReason
        values(dest_port) as dest_port
        values(rule) as rule
        values(transport) as transport
        values(app) as app
        min(_time) as firstTime
        max(_time) as lastTime
  by src dest

Stage 4: search

| `security_content_ctime(firstTime)`

Stage 5: search

| `security_content_ctime(lastTime)`

Stage 6: search

| `cisco_secure_firewall___oracle_e_business_suite_exploitation_filter`

Indicators

Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.

FieldKindValues
EventTypeeq
  • IntrusionEvent
signature_idin
  • 65377
  • 65378
  • 65413
  • 65414
  • 65415
  • 65456
sourcetypeeq
  • cisco:sfw:estreamer