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Mallory
Medium

DLL Search Order Hijacking in Rockwell Automation ISaGRAF Runtime

IdentifiersCVE-2020-25182CWE-427· Uncontrolled Search Path Element

Rockwell Automation ISaGRAF Runtime versions 4.x and 5.x are vulnerable to uncontrolled DLL search order loading on Microsoft Windows systems. The runtime searches for and loads DLLs without specifying a full path, allowing an attacker to place a malicious DLL in a directory that will be loaded by the application, resulting in arbitrary code execution.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

A local, unauthenticated attacker can execute arbitrary code in the context of the ISaGRAF Runtime process by exploiting the DLL search order vulnerability. This could lead to privilege escalation, persistence, or further compromise of the affected system.

Mitigation

If you can’t patch tonight, do this now.

Restrict write access to directories in the DLL search path to trusted users only. Use Windows features such as SafeDllSearchMode and application whitelisting to reduce the risk of DLL hijacking. Monitor for suspicious DLL files in application directories.

Remediation

Patch, then assume compromise.

Update to a patched version of ISaGRAF Runtime that addresses the DLL search order issue by specifying full paths when loading DLLs or by using secure loading functions. Consult Rockwell Automation advisories for specific patch information.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Rockwell AutomationAadvance Controllerapplication
Rockwell AutomationIsagraf Free Runtimeapplication
Rockwell AutomationIsagraf Runtimeapplication
Rockwell AutomationMicro810 Firmwareoperating_system
Rockwell AutomationMicro820 Firmwareoperating_system
Rockwell AutomationMicro830 Firmwareoperating_system
Rockwell AutomationMicro850 Firmwareoperating_system
Rockwell AutomationMicro870 Firmwareoperating_system
Schneider ElectricEasergy C5 Firmwareoperating_system
Schneider ElectricEasergy T300 Firmwareoperating_system
Schneider ElectricEpas Gtw Firmwareoperating_system
Schneider ElectricMicom C264 Firmwareoperating_system
Schneider ElectricPacis Gtw Firmwareoperating_system
Schneider ElectricSaitel Dp Firmwareoperating_system
Schneider ElectricSaitel Dr Firmwareoperating_system
Schneider ElectricScd2200 Firmwareoperating_system
XylemMultismart Firmwareoperating_system

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

1 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

No news coverage yet. Advisories and community discussion only.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity

Community discussion across Reddit, Mastodon, and other social sources.