Detection: Cisco Secure Firewall - Oracle E-Business Suite Exploitation

Updated Date: 2025-04-26 ID: 1c077b8a-95a3-4692-980d-c72fc50e9930 Author: Nasreddine Bencherchali, Splunk, Talos NTDR Type: TTP Product: Splunk Enterprise Security

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.

Search

 1`cisco_secure_firewall`
 2EventType=IntrusionEvent
 3signature_id IN (65377, 65378, 65413, 65414, 65415, 65456)
 4
 5| fillnull
 6
 7| stats values(signature_id) as signature_id 
 8        values(signature) as signature 
 9        values(class_desc) as class_desc 
10        values(MitreAttackGroups) as MitreAttackGroups 
11        values(InlineResult) as InlineResult 
12        values(InlineResultReason) as InlineResultReason 
13        values(dest_port) as dest_port 
14        values(rule) as rule 
15        values(transport) as transport 
16        values(app) as app 
17        min(_time) as firstTime 
18        max(_time) as lastTime 
19  by src_ip dest_ip
20
21| `security_content_ctime(firstTime)`
22
23| `security_content_ctime(lastTime)`
24
25| `cisco_secure_firewall___oracle_e_business_suite_exploitation_filter`

Data Source

Name	Platform	Sourcetype	Source
Cisco Secure Firewall Threat Defense Intrusion Event	N/A	`'cisco:sfw:estreamer'`	`'not_applicable'`

Macros Used

Name	Value
cisco_secure_firewall	`sourcetype="cisco:sfw:estreamer"`
cisco_secure_firewall___oracle_e_business_suite_exploitation_filter	`search *`

cisco_secure_firewall___oracle_e_business_suite_exploitation_filter is an empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.

Annotations

- MITRE ATT&CK

+ Kill Chain Phases

+ NIST

+ CIS

- Threat Actors

ID	Technique	Tactic
T1190	Exploit Public-Facing Application	Initial Access

Delivery

DE.CM

CIS 13

Default Configuration

This detection is configured by default in Splunk Enterprise Security to run with the following settings:

Setting	Value
Disabled	true
Cron Schedule	`0 * * * *`
Earliest Time	`-70m@m`
Latest Time	`-10m@m`
Schedule Window	`auto`
Creates Notable	Yes
Rule Title	`%name%`
Rule Description	`%description%`
Notable Event Fields	user, dest
Creates Risk Event	True

This configuration file applies to all detections of type TTP. These detections will use Risk Based Alerting and generate Notable Events.

Implementation

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.

Associated Analytic Story

Risk Based Analytics (RBA)

Risk Message:

Network activity associated with Oracle E-Business Suite exploitation detected from source IP $src_ip$ to destination IP $dest_ip$.

Risk Object	Risk Object Type	Risk Score	Threat Objects
dest_ip	system	25	src_ip, signature

References

Detection Testing

Test Type	Status	Dataset	Source	Sourcetype
Validation	✅ Passing	N/A	N/A	N/A
Unit	✅ Passing	Dataset	`not_applicable`	`cisco:sfw:estreamer`
Integration	✅ Passing	Dataset	`not_applicable`	`cisco:sfw:estreamer`

Replay any dataset to Splunk Enterprise by using our replay.py tool or the UI. Alternatively you can replay a dataset into a Splunk Attack Range

Source: GitHub | Version: 1