# Rockwell FactoryTalk Viewpoint privilege escalation via MSI repair

Published: 2025-08-15 · Severity: routine · Sectors: manufacturing
Canonical: https://vorant.io/reports/db049e58-99e9-5a65-b4ae-e07cbb0141a9/rockwell-factorytalk-viewpoint-privilege-escalation-via-msi-repair

> Local privilege escalation in FactoryTalk Viewpoint via MSI repair operations allows SYSTEM access; patch to version 15.00+.

Rockwell Automation FactoryTalk Viewpoint versions 14.00 and prior contain a privilege escalation vulnerability (CVE-2025-7973) stemming from improper handling of MSI repair operations. An attacker with local access and low privileges can hijack the cscript.exe console window—which executes with SYSTEM privileges during repair—to spawn an elevated command prompt and achieve full privilege escalation.

The vulnerability has a CVSS v4 score of 8.5 and requires local access; it is not exploitable remotely. No active exploitation in the wild has been reported to CISA as of the advisory date. Defenders should prioritize upgrading to version 15.00 or later. For organizations unable to upgrade immediately, CISA recommends segmenting ICS networks from the internet and business networks, restricting local access, and enforcing VPN and firewall controls for remote access.

## Mentioned in this report

- Vulnerabilities: CVE-2025-7973

## Detection guidance (public sample)

### SYSTEM Command Shell Spawned from Conhost or Cscript Console

ATT&CK: T1548.002

A SYSTEM-level cmd.exe or PowerShell spawned by conhost.exe or cscript.exe, consistent with console window hijacking during an MSI repair (CVE-2025-7973 style). Auto-generated starting point — validate and tune in your environment before deploying. IOC matches can false-positive on shared infrastructure and decay as adversary infrastructure rotates.

```yaml
title: SYSTEM Command Shell Spawned from Conhost or Cscript Console
id: fd664a90-cac2-5c87-b627-60dde26ddbc1
status: experimental
description: Detects cmd.exe or PowerShell running as SYSTEM with conhost.exe or cscript.exe
  as parent. This is the outcome of hijacking a SYSTEM console window (for example
  one shown by cscript.exe during an MSI repair) to get an elevated shell. Conhost
  and cscript do not normally launch interactive shells.
references:
- https://www.cisa.gov/news-events/ics-advisories/icsa-25-226-23
tags:
- attack.privilege-escalation
- attack.t1548.002
- attack.t1134.001
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    ParentImage|endswith:
    - \conhost.exe
    - \cscript.exe
    Image|endswith:
    - \cmd.exe
    - \powershell.exe
    - \pwsh.exe
    User|contains:
    - AUTHORITY
    - SYSTEM
  condition: selection
falsepositives:
- Administrative logon or deployment scripts that launch cmd.exe from cscript.exe
  under SYSTEM
- Software installers whose VBScript custom actions call cmd.exe during install or
  repair
level: high
author: Vorant
```

### Browser or Help Process Spawned by Conhost as SYSTEM

ATT&CK: T1548.002

A browser or file-dialog capable process spawned by conhost.exe under SYSTEM, the usual intermediate step in hijacking a SYSTEM console window to reach a shell. Auto-generated starting point — validate and tune in your environment before deploying. IOC matches can false-positive on shared infrastructure and decay as adversary infrastructure rotates.

```yaml
title: Browser or Help Process Spawned by Conhost as SYSTEM
id: 59db5b7c-2d55-5c92-94a0-71dd4c42155b
status: experimental
description: Detects conhost.exe spawning a web browser, mshta or explorer as SYSTEM.
  This follows from interacting with a SYSTEM console window (title-bar properties
  or hyperlink) and is used to pivot to an elevated cmd.exe through an open or save
  dialog.
tags:
- attack.privilege-escalation
- attack.t1548.002
- attack.t1134.001
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    ParentImage|endswith: \conhost.exe
    Image|endswith:
    - \iexplore.exe
    - \msedge.exe
    - \chrome.exe
    - \firefox.exe
    - \mshta.exe
    - \explorer.exe
    User|contains:
    - AUTHORITY
    - SYSTEM
  condition: selection
falsepositives:
- Rare administrative troubleshooting performed in a SYSTEM session
level: high
author: Vorant
references:
- https://www.cisa.gov/news-events/ics-advisories/icsa-25-226-23
```

### Cscript Launched by Msiexec as SYSTEM

ATT&CK: T1548.002

cscript.exe spawned by msiexec.exe under SYSTEM, the console window that is hijacked during a vulnerable MSI repair. Low-fidelity hunting rule. Auto-generated starting point — validate and tune in your environment before deploying. IOC matches can false-positive on shared infrastructure and decay as adversary infrastructure rotates.

```yaml
title: Cscript Launched by Msiexec as SYSTEM
id: 450ecc65-c242-5ba5-803f-599ca21168aa
status: experimental
description: Detects msiexec.exe launching cscript.exe as SYSTEM, which occurs during
  MSI repair or install custom actions. The visible cscript console runs with SYSTEM
  privileges and can be hijacked by a low-privileged user. Use as a hunting or context
  rule and correlate with child shells from conhost.exe or cscript.exe.
tags:
- attack.privilege-escalation
- attack.t1548.002
logsource:
  category: process_creation
  product: windows
detection:
  selection:
    ParentImage|endswith: \msiexec.exe
    Image|endswith: \cscript.exe
    User|contains:
    - AUTHORITY
    - SYSTEM
  condition: selection
falsepositives:
- Legitimate MSI packages that run VBScript custom actions during install, repair
  or upgrade
level: low
author: Vorant
references:
- https://www.cisa.gov/news-events/ics-advisories/icsa-25-226-23
```

Behavioural rules are generated from public reporting — validate in your environment before deploying.

Source reporting: https://www.cisa.gov/news-events/ics-advisories/icsa-25-226-23

---

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