Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
None
Privileges Required
Low
Attack Vector
Network
0

CVE-2023-20115

Disclosure Date: August 23, 2023
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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.

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.

There are workarounds that address this vulnerability.

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CVSS V3 Severity and Metrics
Base Score:
5.4 Medium
Impact Score:
2.5
Exploitability Score:
2.8
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

General Information

Vendors

  • cisco

Products

  • nx-os 10.1(1),
  • nx-os 10.1(2),
  • nx-os 10.1(2t),
  • nx-os 10.2(1),
  • nx-os 10.2(1q),
  • nx-os 10.2(2),
  • nx-os 10.2(3),
  • nx-os 10.2(3t),
  • nx-os 10.2(4),
  • nx-os 10.2(5),
  • nx-os 10.3(1),
  • nx-os 10.3(2),
  • nx-os 9.2(1),
  • nx-os 9.2(2),
  • nx-os 9.2(2t),
  • nx-os 9.2(2v),
  • nx-os 9.2(3),
  • nx-os 9.2(4),
  • nx-os 9.3(1),
  • nx-os 9.3(10),
  • nx-os 9.3(11),
  • nx-os 9.3(2),
  • nx-os 9.3(3),
  • nx-os 9.3(4),
  • nx-os 9.3(5),
  • nx-os 9.3(6),
  • nx-os 9.3(7),
  • nx-os 9.3(7a),
  • nx-os 9.3(8),
  • nx-os 9.3(9)

Additional Info

Technical Analysis