Invensys Wonderware Win-XML Exporter Improper Input Validation Vulnerability
Low RiskICS-CERT ICSA-13-067-02Dec 10, 2013
Summary
Invensys Wonderware Win-XML Exporter contains an improper input validation vulnerability (CWE-20) in versions 1522.148.0.0 and earlier. The vulnerability could allow an attacker to send malformed input to the application, potentially causing unexpected behavior or system compromise. No vendor patch is available for this product.
What this means
What could happen
An attacker could send crafted input to the Win-XML Exporter application, potentially causing it to crash, behave unexpectedly, or execute unintended code. This could disrupt data export operations or compromise the integrity of exported process data.
Who's at risk
Water utilities and municipal electric operations that use Invensys Wonderware Win-XML Exporter for data export and reporting. This affects any facility relying on this exporter for historical data collection, HMI integration, or SCADA data archival functions.
How it could be exploited
An attacker with network access to the Win-XML Exporter service would send malformed or specially crafted input data to the application. The application fails to properly validate this input before processing it, allowing the attacker to trigger unexpected behavior or potentially gain control over the application's execution.
Prerequisites
- Network access to the Win-XML Exporter service port
- No authentication required (input validation flaw exploitable without credentials)
no patch availableremotely exploitablelegacy unsupported product
Exploitability
Low exploit probability (EPSS 0.5%)
Affected products (1)
ProductAffected VersionsFix Status
Win-XML Exporter: <=1522.148.0.0≤ 1522.148.0.0No fix (EOL)
Remediation & Mitigation
0/4
Do now
0/2HARDENINGImplement network segmentation to restrict access to Win-XML Exporter from untrusted sources. Only allow connections from authorized engineering workstations and data collectors.
WORKAROUNDDeploy a firewall rule or access control list to limit network connectivity to the Win-XML Exporter service port to trusted systems only.
Schedule — requires maintenance window
0/1Patching may require device reboot — plan for process interruption
HARDENINGMonitor Win-XML Exporter for unexpected crashes, errors, or unusual activity that may indicate exploitation attempts.
Mitigations - no patch available
0/1Win-XML Exporter: <=1522.148.0.0 has reached End of Life. The vendor will not release a patch. Apply the following compensating controls:
HARDENINGPlan for upgrade or replacement of Win-XML Exporter with a newer, supported product version as no patch is available for this legacy product.
CVEs (1)
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