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Sel 2241 Rtac Module FirmwareOperating system · Selinc

CVE-2023-31158

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 in the SEL RTAC Web Interface allows authenticated remote attackers to inject malicious JavaScript code that executes in the browsers of other users viewing the web interface.

MitigationApply the vendor patch from SEL Service Bulletin (2022-11-15). Until patched, implement input validation and output encoding on all user-supplied data rendered in the web interface, and consider restricting web interface access to trusted networks.

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 your SEL device model
    Locate the SEL device label or access the web interface to confirm the model number (e.g., SEL-2241, SEL-3350, SEL-3505, SEL-3530, SEL-3532, SEL-3555)
    Affected if The model is one of the affected products listed in the CVE
  2. Check the installed firmware version
    Access the web interface and navigate to the firmware/version information page, or use the SEL acselerator or terminal command to retrieve the firmware version (typically displayed as rXXX-vX)
    Affected if The firmware version falls within the affected range: r132-v0 to r149-vX (or r134-v0 for SEL-3555, r148-v0 for SEL-3350), and is below r150-v2
  3. Confirm web interface is enabled
    Verify that the RTAC Web Interface service is running and accessible by attempting to reach the web interface URL (typically https://device-ip)
    Affected if The web interface is accessible and the device is on an affected firmware version
  4. Verify authentication settings
    Check if authentication is required for web interface access by examining the web interface security settings or authentication configuration
    Affected if The web interface permits authenticated user access (since the CVE requires an authenticated attacker to inject the XSS payload)

You are affected if your SEL device model matches one of the listed products AND your firmware version is greater than or equal to the lower bound (r132-v0, r134-v0, or r148-v0 depending on model) but less than r150-v2, and the web interface is enabled and accessible.

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 from SEL Service Bulletin (2022-11-15). Until patched, implement input validation and output encoding on all user-supplied data rendered in the web interface, and consider restricting web interface access to trusted networks.

Recommended fix High confidence

r150-v2 or later

  1. Verify the current firmware version of the SEL RTAC device by accessing the web interface or using the device's management interface
  2. Download the SEL firmware version r150-v2 or later from the official SEL (Schweitzer Engineering Laboratories) website or support portal
  3. Follow SEL's standard firmware upgrade procedures for the specific SEL RTAC model (SEL 2241, SEL 3350, SEL 3505, SEL 3505 3, SEL 3530, SEL 3530 4, SEL 3532, or SEL 3555)
  4. After upgrading, verify the firmware version has been successfully updated to r150-v2 or later
  5. Test the web interface to confirm normal functionality after the upgrade

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
  • Consultation2.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
16.0 hours of engineering $2,800
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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-2023-31158 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