CVEvulnerability

CVE-2023-20185

7.4 HIGH Published 2023-07-12 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-07-12
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.4 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS 3.1 ([email protected])
7.4 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Weaknesses
CWE-326, CWE-330

Description

A vulnerability in the Cisco ACI Multi-Site CloudSec encryption feature of Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an unauthenticated, remote attacker to read or modify intersite encrypted traffic. This vulnerability is due to an issue with the implementation of the ciphers that are used by the CloudSec encryption feature on affected switches. An attacker with an on-path position between the ACI sites could exploit this vulnerability by intercepting intersite encrypted traffic and using cryptanalytic techniques to break the encryption. A successful exploit could allow the attacker to read or modify the traffic that is transmitted between the sites. Cisco has not released and will not release software updates that address this vulnerability.

Affected configurations

• cisco nx-os 14.0\(1h\) • cisco nx-os 14.0\(2c\) • cisco nx-os 14.0\(3c\) • cisco nx-os 14.0\(3d\) • cisco nx-os 14.1\(1i\) • cisco nx-os 14.1\(1j\) • cisco nx-os 14.1\(1k\) • cisco nx-os 14.1\(1l\) • cisco nx-os 14.1\(2g\) • cisco nx-os 14.1\(2m\) • cisco nx-os 14.1\(2o\) • cisco nx-os 14.1\(2s\) • cisco nx-os 14.1\(2u\) • cisco nx-os 14.1\(2w\) • cisco nx-os 14.1\(2x\) • cisco nx-os 14.2\(1i\) • cisco nx-os 14.2\(1j\) • cisco nx-os 14.2\(1l\) • cisco nx-os 14.2\(2e\) • cisco nx-os 14.2\(2f\) • cisco nx-os 14.2\(2g\) • cisco nx-os 14.2\(3j\) • cisco nx-os 14.2\(3l\) • cisco nx-os 14.2\(3n\) • cisco nx-os 14.2\(3q\) • cisco nx-os 14.2\(4i\) • cisco nx-os 14.2\(4k\) • cisco nx-os 14.2\(4o\) • cisco nx-os 14.2\(4p\) • cisco nx-os 14.2\(5k\) • cisco nx-os 14.2\(5l\) • cisco nx-os 14.2\(5n\) • cisco nx-os 14.2\(6d\) • cisco nx-os 14.2\(6g\) • cisco nx-os 14.2\(6h\) • cisco nx-os 14.2\(6l\) • cisco nx-os 14.2\(6o\) • cisco nx-os 14.2\(7f\) • cisco nx-os 14.2\(7l\) • cisco nx-os 14.2\(7q\) • cisco nx-os 14.2\(7r\) • cisco nx-os 14.2\(7s\) • cisco nx-os 14.2\(7t\) • cisco nx-os 14.2\(7u\) • cisco nx-os 14.2\(7v\) • cisco nx-os 14.2\(7w\) • cisco nx-os 15.0\(1k\) • cisco nx-os 15.0\(1l\) • cisco nx-os 15.0\(2e\) • cisco nx-os 15.0\(2h\) • cisco nx-os 15.1\(1h\) • cisco nx-os 15.1\(2e\) • cisco nx-os 15.1\(3e\) • cisco nx-os 15.1\(4c\) • cisco nx-os 15.2\(1g\) • cisco nx-os 15.2\(2e\) • cisco nx-os 15.2\(2f\) • cisco nx-os 15.2\(2g\) • cisco nx-os 15.2\(2h\) • cisco nx-os 15.2\(3e\) … and 16 more

Related

Weakness · CWE (2)

  • CWE-326 Inadequate Encryption Strength weakness
  • CWE-330 Use of Insufficiently Random Values weakness

References