Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2017-3765

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
10/01/2018
Last modified:
06/02/2018

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.

Impact

Vector 3.x
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.00 HIGH
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.00
Severity 3.x
HIGH
Vector 2.0
AV:L/AC:H/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.20 MEDIUM
Vector: AV:L/AC:H/Au:N/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): High
Authentication (Au): None
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
6.20
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:lenovo:enterprise_network_operating_system:*:*:*:*:*:*:*:* 8.4.6.0 (excluding)
cpe:2.3:h:lenovo:flex_system_fabric_cn4093_10gb_converged_scalable_switch:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:flex_system_fabric_en4093r_10gb_scalable_switch:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:flex_system_fabric_si4093_10gb_system_interconnect_module:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:flex_system_si4091_system_interconnect_module:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:rackswitch_g7028:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:rackswitch_g7052:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:rackswitch_g8052:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:rackswitch_g8124e:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:rackswitch_g8264:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:rackswitch_g8264cs:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:rackswitch_g8272:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:rackswitch_g8296:-:*:*:*:*:*:*:*
cpe:2.3:h:lenovo:rackswitch_g8332:-:*:*:*:*:*:*:*
cpe:2.3:o:lenovo:enterprise_network_operating_system:*:*:*:*:*:*:*:* 8.4.6.0 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools