CVE-2025-20232 Overview
CVE-2025-20232 is a privilege escalation vulnerability in Splunk Enterprise and Splunk Cloud Platform. A low-privileged authenticated user without the admin or power roles can bypass Search Processing Language (SPL) safeguards for risky commands. The attacker triggers a saved search containing a risky command that executes with the permissions of a higher-privileged user. Exploitation targets the /app/search/search endpoint through its s parameter. The vulnerability requires user interaction because the victim must be tricked into initiating the request from their browser.
Critical Impact
Successful exploitation enables a low-privileged Splunk user to execute risky SPL commands under another user's context, exposing sensitive data indexed within Splunk.
Affected Products
- Splunk Enterprise versions below 9.3.3, 9.2.5, and 9.1.8
- Splunk Cloud Platform versions below 9.3.2408.103, 9.2.2406.108, 9.2.2403.113
- Splunk Cloud Platform versions below 9.1.2312.208 and 9.1.2308.212
Discovery Timeline
- 2025-03-26 - CVE-2025-20232 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-20232
Vulnerability Analysis
The vulnerability is classified under [CWE-200] Exposure of Sensitive Information to an Unauthorized Actor. Splunk enforces SPL safeguards to restrict risky commands to privileged roles such as admin or power. These safeguards are bypassed when a low-privileged user causes a saved search to run under another user's permissions.
The flaw resides in how the /app/search/search endpoint handles requests supplied through the s parameter. When a victim's browser submits the crafted request, the saved search executes with the victim's higher-privilege context. This allows the attacker to inherit access to data and commands their own role prohibits.
Exploitation requires social engineering. The attacker must phish the victim and trick them into initiating the request within an authenticated browser session. The authenticated attacker cannot invoke the vulnerability at will without victim interaction.
Root Cause
The root cause is missing enforcement of role-based restrictions on risky SPL commands when a saved search is executed through the affected endpoint. The safeguard logic does not verify that the effective user context matches the invoker's role permissions for the risky command being dispatched.
Attack Vector
The attack originates over the network with low privileges and requires user interaction. An attacker crafts a malicious link or embedded request targeting /app/search/search with a manipulated s parameter. When a higher-privileged, authenticated user visits the attacker-controlled page, their browser issues the request. Splunk executes the saved search with the victim's role, effectively bypassing the SPL command restrictions.
No verified public proof-of-concept exploit code is available. Refer to the Splunk Security Advisory SVD-2025-0304 for vendor-provided technical details.
Detection Methods for CVE-2025-20232
Indicators of Compromise
- Unexpected requests to the /app/search/search endpoint containing crafted s parameter values that reference saved searches with risky SPL commands.
- Audit log entries showing saved searches executed by users whose role should not permit the invoked command.
- HTTP referrers pointing to external or untrusted origins for authenticated Splunk Web sessions.
Detection Strategies
- Review the audit.log and search history for saved searches invoking risky commands such as collect, delete, outputlookup, or runshellscript initiated by non-privileged users.
- Correlate Splunk Web access logs with user role assignments to identify safeguard bypass patterns.
- Alert on cross-origin POST or GET requests targeting the search endpoint that originate outside of Splunk Web navigation.
Monitoring Recommendations
- Enable and forward Splunk internal _audit and _internal indexes to a centralized monitoring platform.
- Baseline normal saved-search execution patterns per user role and alert on deviations.
- Monitor for phishing indicators targeting Splunk administrators, including emails referencing search URLs.
How to Mitigate CVE-2025-20232
Immediate Actions Required
- Upgrade Splunk Enterprise to version 9.3.3, 9.2.5, 9.1.8, or later as documented in Splunk Security Advisory SVD-2025-0304.
- Confirm Splunk Cloud Platform instances are running 9.3.2408.103, 9.2.2406.108, 9.2.2403.113, 9.1.2312.208, 9.1.2308.212, or later.
- Audit saved searches for risky SPL commands and restrict ownership to accounts that require them.
Patch Information
Splunk released fixed versions for both Enterprise and Cloud Platform. Enterprise customers must upgrade to 9.3.3, 9.2.5, or 9.1.8. Splunk Cloud Platform is patched automatically by Splunk as part of the maintenance schedule. Review the Splunk Security Advisory SVD-2025-0304 for exact version details and upgrade guidance.
Workarounds
- Enforce browser session isolation for privileged Splunk users and require re-authentication for administrative sessions.
- Educate admin and power role holders on phishing risks and prohibit clicking search URLs from untrusted sources.
- Restrict access to Splunk Web from trusted networks using reverse proxy or firewall rules while upgrades are staged.
# Verify installed Splunk version prior to patch validation
$SPLUNK_HOME/bin/splunk version
# List saved searches that use risky commands for review
$SPLUNK_HOME/bin/splunk search '| rest /servicesNS/-/-/saved/searches | search search="*collect*" OR search="*delete*" OR search="*outputlookup*"'
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.