Headline
CVE-2022-27183: Splunk XSS in Monitoring Console
The Monitoring Console app configured in Distributed mode allows for a Reflected XSS in a query parameter in Splunk Enterprise versions before 8.1.4. The Monitoring Console app is a bundled app included in Splunk Enterprise, not for download on SplunkBase, and not installed on Splunk Cloud Platform instances. Note that the Cloud Monitoring Console is not impacted.
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Description
On May 3rd, 2022, Splunk published a security advisory for a reflective Cross-Site Scripting (XSS) vulnerability stemming from the lack of input validation in the Distributed Monitoring Console app. This detection will alert on attempted exploitation in patched versions of Splunk as well as actual exploitation in unpatched version of Splunk.
Type: TTP
Product: Splunk Enterprise, Splunk Enterprise Security, Splunk Cloud
Last Updated: 2022-04-27
Author: Lou Stella, Splunk
ID: b11accac-6fa3-4103-8a1a-7210f1a67087
AnnotationsATT&CK
ID
Technique
Tactic
T1189
Drive-by Compromise
Initial Access
Kill Chain Phase
- Exploitation
NIST
- DE.CM
CIS20
- CIS 3
- CIS 5
- CIS 16
CVESearch
1
2
3
`splunkd_web` method="GET" uri_query="description=%3C*"
| table _time host status clientip user uri
| `splunk_xss_in_monitoring_console_filter`
Macros
The SPL above uses the following Macros:
- splunkd_web
Note that splunk_xss_in_monitoring_console_filter is a empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.
Required field
- method
- uri_query
- status
- clientip
- user
- uri
How To Implement
This detection does not require you to ingest any new data. The detection does require the ability to search the _internal index. This detection will find attempted exploitation of CVE-2022-27183.
Known False Positives
Use of the monitoring console where the less-than sign (<) is the first character in the description field.
Associated Analytic story
- Splunk Vulnerabilities
RBA
Risk Score
Impact
Confidence
Message
40.0
50
80
A potential XSS attempt has been detected from $user$
Reference
- https://www.splunk.com/en_us/product-security/announcements/svd-2022-0505.html
Test Dataset
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
- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1189/xss/splunk_web_access.log
source | version: 1
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