Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2023-20115

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
23/08/2023
Last modified:
25/01/2024

Description

A vulnerability in the SFTP server implementation for Cisco Nexus 3000 Series Switches and 9000 Series Switches in standalone NX-OS mode could allow an authenticated, remote attacker to download or overwrite files from the underlying operating system of an affected device. <br /> <br /> This vulnerability is due to a logic error when verifying the user role when an SFTP connection is opened to an affected device. An attacker could exploit this vulnerability by connecting and authenticating via SFTP as a valid, non-administrator user. A successful exploit could allow the attacker to read or overwrite files from the underlying operating system with the privileges of the authenticated user.<br /> <br /> There are workarounds that address this vulnerability.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS v3.1 Severity and Metrics:

Base Score: 5.40 MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

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

Base Score 3.x
5.40
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:nx-os:9.2\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.2\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.2\(2t\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.2\(2v\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.2\(3\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.2\(4\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.3\(1\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.3\(2\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.3\(3\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.3\(4\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.3\(5\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.3\(6\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.3\(7\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.3\(7a\):*:*:*:*:*:*:*
cpe:2.3:o:cisco:nx-os:9.3\(8\):*:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools