PT-2023-7442 · Schweitzer Engineering Laboratories · Sel-451

Andrea Palanca + 1 · Published 2023-11-30 · Updated 2023-12-06 · CVE-2023-31176

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Schweitzer Engineering Laboratories SEL-451 (affected versions not specified)

Description The issue is related to insufficient entropy in the microprogram of the protective relay phase sequence of the Schweitzer Engineering Laboratories SEL-451. This could allow an unauthenticated remote attacker to brute-force session tokens and bypass authentication. For more details, refer to the product Instruction Manual Appendix A dated 20230830.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-331

Related Identifiers

BDU:2023-08481

CVE-2023-31176

Affected Products

Sel-451

References · 8

• https://selinc.com/support/security-notifications/external-reports · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-31176 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-31176 · Security Note
• https://bdu.fstec.ru/vul/2023-08481 · Security Note
• https://twitter.com/CVEnew/status/1730296135913501130 · Twitter Post
• https://twitter.com/VulmonFeeds/status/1730314843398238394 · Twitter Post
• https://nozominetworks.com/blog · Note
• https://t.me/cvenotify/61732 · Telegram Post