CVE-2024-29004: SolarWinds Platform XSS Vulnerability

CVE-2024-29004 Overview

CVE-2024-29004 is a stored cross-site scripting (XSS) vulnerability affecting the SolarWinds Platform web console. This security flaw allows malicious script injection that persists within the application, potentially enabling attackers to execute arbitrary JavaScript code in the context of other users' browser sessions. While exploitation requires both high-privileged access and user interaction, successful attacks could lead to session hijacking, data theft, or further compromise of the monitoring infrastructure.

Critical Impact

Stored XSS in the SolarWinds Platform web console could allow attackers with high privileges to inject persistent malicious scripts, potentially compromising other users accessing the affected console pages.

Affected Products

• SolarWinds Platform (versions prior to 2024.2)
• SolarWinds Orion Platform web console components

Discovery Timeline

• 2024-06-04 - CVE-2024-29004 published to NVD
• 2025-02-26 - Last updated in NVD database

Technical Details for CVE-2024-29004

Vulnerability Analysis

This stored cross-site scripting vulnerability exists within the SolarWinds Platform web console interface. Unlike reflected XSS attacks that require victims to click malicious links, stored XSS payloads are permanently saved in the application's database and automatically execute when users view the compromised content. The attack requires adjacent network access and high-privilege authentication, limiting the attack surface but not eliminating risk in enterprise environments where multiple administrators share console access.

The vulnerability's exploitation model involves a privileged attacker injecting malicious JavaScript into a persistent storage location within the web console. When other users subsequently access the affected page, the malicious script executes in their browser context, potentially allowing the attacker to steal session tokens, perform actions on behalf of victims, or exfiltrate sensitive monitoring data.

Root Cause

The vulnerability stems from insufficient input sanitization and output encoding within the SolarWinds Platform web console (CWE-79). User-supplied input is stored in the application without proper validation and later rendered in web pages without adequate escaping, allowing HTML and JavaScript content to be interpreted by browsers rather than displayed as plain text.

Attack Vector

The attack requires adjacent network access and a high-privileged user account on the SolarWinds Platform. The attacker must have sufficient permissions to inject content into a stored location within the web console. Additionally, successful exploitation requires user interaction—another user must view the page containing the malicious payload for the script to execute.

Attack chain:

1. Attacker authenticates to the SolarWinds Platform with high-privilege credentials
2. Attacker identifies an input field that stores content without proper sanitization
3. Malicious JavaScript payload is injected and stored in the application
4. When other users access the affected page, the stored script executes in their browser context
5. The attacker can then steal session cookies, capture keystrokes, or perform actions as the victim user

Detection Methods for CVE-2024-29004

Indicators of Compromise

• Unexpected JavaScript or HTML content in SolarWinds Platform database fields or configuration entries
• Unusual script execution patterns in browser developer tools when accessing the web console
• Alert generation from web application firewalls detecting XSS payloads in traffic to the SolarWinds Platform
• Reports from users experiencing unexpected behavior or redirects within the web console

Detection Strategies

• Implement Content Security Policy (CSP) headers and monitor for policy violations indicating script injection attempts
• Deploy web application firewall rules to detect and block common XSS payload patterns in requests to the SolarWinds Platform
• Enable detailed logging on the SolarWinds Platform and review for suspicious input patterns from high-privileged accounts
• Utilize browser-based XSS auditing and ensure modern security headers are enforced

Monitoring Recommendations

• Regularly audit SolarWinds Platform user accounts with elevated privileges for unauthorized access or suspicious activity
• Monitor network traffic to and from the SolarWinds Platform for anomalous patterns that may indicate data exfiltration
• Implement session monitoring to detect potential session hijacking resulting from XSS exploitation
• Review SolarWinds Platform audit logs for unusual content modifications by privileged users

How to Mitigate CVE-2024-29004

Immediate Actions Required

• Upgrade the SolarWinds Platform to version 2024.2 or later, which contains the security fix for this vulnerability
• Review and restrict high-privilege account access to minimize the potential attack surface
• Implement network segmentation to limit adjacent network access to the SolarWinds Platform web console
• Enable all available security logging and monitor for suspicious activity

Patch Information

SolarWinds has addressed this vulnerability in SolarWinds Platform version 2024.2. Organizations should upgrade to this version or later to remediate the stored XSS vulnerability. For detailed upgrade instructions and release notes, refer to the SolarWinds 2024-2 Release Notes. Additional security information is available in the SolarWinds Security Advisory for CVE-2024-29004.

Workarounds

• Restrict access to the SolarWinds Platform web console to trusted network segments only
• Implement strict role-based access control to minimize the number of high-privileged accounts
• Deploy a web application firewall with XSS detection rules in front of the SolarWinds Platform
• Enable Content Security Policy headers at the network or proxy level to reduce XSS impact

# Example: Restrict SolarWinds Platform access via firewall rules
# Only allow trusted administrative subnets to access the web console
iptables -A INPUT -p tcp --dport 443 -s 10.0.1.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP