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CVE-2023-31176

Insufficient entropy vulnerability could lead to authentication bypass

Published: Nov 30, 2023Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-331
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.9%
Top 44.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An Insufficient Entropy vulnerability in the Schweitzer Engineering Laboratories SEL-451 could allow an unauthenticated remote attacker to brute-force session tokens and bypass authentication.  See product Instruction Manual Appendix A dated 20230830 for more details.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-331

Affected Products

SEL-451Schweitzer Engineering LaboratoriesICS / OT / IoT
sel-451 firmwareselinc
SEL-451Schweitzer Engineering Laboratories, Inc.
Embedded
ICS / OT / IoT / plc-scada-hmi
schweitzer engineering laboratoriescommercialUSICS / OT / IoT
schweitzer engineering laboratories, inc.commercialUSICS / OT / IoT

Exploitability

Official Patch Available

References

https://selinc.com/support/security-notifications/external-reports/
selinc.com
https://www.nozominetworks.com/blog/
nozominetworks.com

Timeline

Published
Nov 30, 2023
Last Updated
Nov 21, 2024

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