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Sel 2241 Rtac Module FirmwareOperating system · Selinc

CVE-2023-31155

MEDIUM · 5.4 CVSS v3.1 Published 2023-05-10
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
58/100
Remediation priority · Elevated
Remotely reachable

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the Schweitzer Engineering Laboratories Real-Time Automation Controller (SEL RTAC) Web Interface could allow a remote authenticated attacker to inject and execute arbitrary script code. See SEL Service Bulletin dated 2022-11-15 for more details.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

A stored Cross-Site Scripting (XSS) vulnerability exists in the SEL RTAC web interface where user-supplied input is not properly sanitized before being rendered in web pages. An authenticated attacker can inject malicious JavaScript code that executes in the context of other users' browsers when they access the affected web pages.

MitigationApply the vendor patch or firmware update from SEL Service Bulletin (2022-11-15). If immediate patching is not possible, implement network segmentation to restrict access to the RTAC web interface to authorized personnel only, and consider disabling the web interface if not operationally required.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Sel 2241 Rtac Module FirmwareOperating system
Affected:>= r132-v0, < r150-v2
Sel 3350 FirmwareOperating system
Affected:>= r148-v0, < r150-v2
Sel 3505 FirmwareOperating system
Affected:>= r132-v0, < r150-v2
Sel 3505 3 FirmwareOperating system
Affected:>= r132-v0, < r150-v2
Sel 3530 FirmwareOperating system
Affected:>= r132-v0, < r150-v2
Sel 3530 4 FirmwareOperating system
Affected:>= r132-v0, < r150-v2
Sel 3532 FirmwareOperating system
Affected:>= r132-v0, < r150-v2
Sel 3555 FirmwareOperating system
Affected:>= r134-v0, < r150-v2

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the SEL RTAC product model
    Access the device web interface or check the device label/documentation to determine the exact model number (e.g., SEL 2241, SEL 3350, SEL 3505, SEL 3530, SEL 3532, or SEL 3555)
    Affected if The model is one of the affected products listed in the CVE (2241, 3350, 3505, 3505 3, 3530, 3530 4, 3532, or 3555)
  2. Determine the installed firmware version
    Log into the device web interface and navigate to the firmware/version information page, or use the device CLI command to display firmware version (typically 'show version' or similar)
    Affected if The displayed firmware version is within the affected range for your model: r132-v0 through r149 (inclusive) for most models, or r148-v0 through r149 for SEL 3355, or r134-v0 through r149 for SEL 3555
  3. Confirm the web interface is enabled
    Check the device configuration via CLI or web interface to verify if the HTTP/HTTPS web interface service is currently enabled and running
    Affected if The web interface is enabled and accessible on the network; the vulnerability exists in the web interface functionality
  4. Verify the version falls below the fixed release
    Compare your installed firmware version string against the fixed version r150-v2 - if your version is less than r150-v2, you are in the affected range
    Affected if The installed firmware version is earlier than r150-v2 (for example, r140, r145, r149)

You are affected if you are running any of the listed SEL RTAC product models with firmware versions earlier than r150-v2 and the web interface is enabled.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the vendor patch or firmware update from SEL Service Bulletin (2022-11-15). If immediate patching is not possible, implement network segmentation to restrict access to the RTAC web interface to authorized personnel only, and consider disabling the web interface if not operationally required.

Recommended fix Moderate confidence

r150-v2 or later

  1. Obtain firmware version r150-v2 or later from SEL ( Schweitzer Engineering Laboratories ) official sources
  2. Review the SEL Service Bulletin dated 2022-11-15 for specific upgrade instructions
  3. Follow SEL standard firmware upgrade procedure for your specific SEL RTAC device model
  4. Verify the firmware version has been successfully applied after upgrade
  5. Confirm the web interface is functioning properly post-upgrade
Caveat Review SEL Service Bulletin for any configuration or compatibility notes before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Sel 2241 Rtac Module Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-31155 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data