Authenticated service lockout via invalid network input
Published Nov 30, 2023 · Updated Aug 2, 2024
Improper input validation in SEL-451 firmware allows remote authenticated users to interrupt relay services through network input. The vendor identifies the affected locus only as input processing and has not disclosed the field, request, or validation operation that locks out services. Exploitation requires authenticated network access and user interaction; the reported consequence is a service lockout, with no confidentiality or integrity impact.
Summary
What happened
Improper input validation in SEL-451 firmware allows remote authenticated users to interrupt relay services through network input. The vendor identifies the affected locus only as input processing and has not disclosed the field, request, or validation operation that locks out services. Exploitation requires authenticated network access and user interaction; the reported consequence is a service lockout, with no confidentiality or integrity impact.
The record
- CVE
- CVE-2023-34390
- Published
- Nov 30, 2023
- Updated
- Aug 2, 2024
- Vendor
- Schweitzer Engineering Laboratories
- Product
- SEL-451 Protection, Automation, and Bay Control System
- Classifications
- CWE-20, CAPEC-469, CAPEC-25, T0814
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 30, 2023CVE publishedPublication date reported by the CVE source.
- Aug 2, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=R315-V0 <R315-V4
- Affected versionversion=R316-V0 <R316-V4
- Affected versionversion=R317-V0 <R317-V4
- Affected versionversion=R318-V0 <R318-V5
- Affected versionversion=R320-V0 <R320-V3
- Affected versionversion=R321-V0 <R321-V3
- Affected versionversion=R322-V0 <R322-V3
- Affected versionversion=R323-V0 <R323-V5
- Affected versionversion=R324-V0 <R324-V4
- Affected versionversion=R325-V0 <R325-V3
- Affected versionversion=R326-V0 <R326-V1
- Affected versionversion=R327-V0 <R327-V1
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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