VULNERABILITY INTELLIGENCE

CVE-2017-3765

CVSS score7 HIGH

EPSS probability0.27%

CISA KEVNot currently listed

Published2018-01-10

Last modified2026-06-17

CVSS vectorCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

In Enterprise Networking Operating System (ENOS) in Lenovo and IBM RackSwitch and BladeCenter products, an authentication bypass known as "HP Backdoor" was discovered during a Lenovo security audit in the serial console, Telnet, SSH, and Web interfaces. This bypass mechanism can be accessed when performing local authentication under specific circumstances. If exploited, admin-level access to the switch is granted.

Weakness classification

CWE-287: Improper Authentication

Primary references

psirt@lenovo.com — Third Party Advisory
psirt@lenovo.com — Mitigation, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mitigation, Patch, Vendor Advisory