ID | Technique | Tactic |
---|---|---|
T1190 | Exploit Public-Facing Application | Initial Access |
Detection: MOVEit Certificate Store Access Failure
Description
This detection identifies potential exploitation attempts of the CVE-2024-5806 vulnerability in Progress MOVEit Transfer. It looks for log entries indicating failures to access the certificate store, which can occur when an attacker attempts to exploit the authentication bypass vulnerability. This behavior is a key indicator of attempts to impersonate valid users without proper credentials. While certificate store access failures can occur during normal operations, an unusual increase in such events, especially from unexpected sources, may indicate malicious activity.
Search
1`moveit_sftp_logs` "IpWorksKeyService: Caught exception of type IPWorksSSHException: The certificate store could not be opened"
2| stats count by source _raw
3| `security_content_ctime(firstTime)`
4| `security_content_ctime(lastTime)`
5| `moveit_certificate_store_access_failure_filter`
Data Source
Name | Platform | Sourcetype | Source | Supported App |
---|---|---|---|---|
N/A | N/A | N/A | N/A | N/A |
Macros Used
Name | Value |
---|---|
moveit_sftp_logs | sourcetype="sftp_server_logs" |
moveit_certificate_store_access_failure_filter | search * |
moveit_certificate_store_access_failure_filter
is an empty macro by default. It allows the user to filter out any results (false positives) without editing the SPL.
Annotations
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 Risk Event | False |
Implementation
The MOVEit logs must be collected in Splunk. Currently, there is no TA available for MOVEit. Modify the analytic as needed to match the log format of your environment.
Known False Positives
False positives may occur, therefore utilize the analytic as a jump off point to identifiy potential certificate store errors.
Associated Analytic Story
Risk Based Analytics (RBA)
Risk Message | Risk Score | Impact | Confidence |
---|---|---|---|
Potential exploitation of the CVE-2024-5806 vulnerability in Progress MOVEit Transfer, causing certificate store access failure on $source$. | 9 | 30 | 30 |
References
Detection Testing
Test Type | Status | Dataset | Source | Sourcetype |
---|---|---|---|---|
Validation | ✅ Passing | N/A | N/A | N/A |
Unit | ✅ Passing | Dataset | sftp_server_logs |
sftp_server_logs |
Integration | ✅ Passing | Dataset | sftp_server_logs |
sftp_server_logs |
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