MOVEit Certificate Store Access Failure

Status: production
Group by: _raw, channel
Author: Michael Haag, Splunk
Source: github.com/splunk/security_content

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.

Known false positives

False positives may occur, therefore utilize the analytic as a jump off point to identifiy potential certificate store errors.

MITRE ATT&CK coverage

Tactic	Techniques
Initial Access	`T1190` Exploit Public-Facing Application

Rule body

name: MOVEit Certificate Store Access Failure
id: d61292d5-46e4-49ea-b23b-8049ea70b525
version: 6
creation_date: '2024-07-24'
modification_date: '2026-05-13'
author: Michael Haag, Splunk
status: production
type: Hunting
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.
data_source: []
search: |-
    `moveit_sftp_logs` "IpWorksKeyService: Caught exception of type IPWorksSSHException: The certificate store could not be opened"
      | stats count
        BY source _raw
      | `security_content_ctime(firstTime)`
      | `security_content_ctime(lastTime)`
      | `moveit_certificate_store_access_failure_filter`
how_to_implement: 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.
references:
    - https://labs.watchtowr.com/auth-bypass-in-un-limited-scenarios-progress-moveit-transfer-cve-2024-5806/
analytic_story:
    - MOVEit Transfer Authentication Bypass
asset_type: Web Server
cve:
    - CVE-2024-5806
mitre_attack_id:
    - T1190
product:
    - Splunk Enterprise
    - Splunk Enterprise Security
    - Splunk Cloud
category: endpoint
security_domain: endpoint

Stages and Predicates

Stage 1: `search`

`moveit_sftp_logs` "IpWorksKeyService: Caught exception of type IPWorksSSHException: The certificate store could not be opened"

Stage 2: `stats`

| stats count
    BY source _raw

Stage 3: `search`

| `security_content_ctime(firstTime)`

Stage 4: `search`

| `security_content_ctime(lastTime)`

Stage 5: `search`

| `moveit_certificate_store_access_failure_filter`

Indicators

These rows show field, operator, and value matches.

Field	Kind	Values	Search
`sourcetype`	eq	`sftp_server_logs` corpus 2 (splunk 2)	`field:"sourcetype" kind:eq value:"sftp_server_logs"`

Search terms

These SPL tokens match against raw event text.

Stage	Term
1	`"IpWorksKeyService: Caught exception of type IPWorksSSHException: The certificate store could not be opened"`