CVE-2023-20185 - CVE House
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Status published High CVE-2023-20185

A vulnerability in the Cisco ACI Multi-Site CloudSec encryption feature...

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

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Affected Vendor

Affected Software

Cisco NX-OS System Software in ACI Mode
Vulnerable Versions:
14.0(1h), 14.0(2c), 14.0(3d), 14.0(3c), 14.1(1i), 14.1(1j), 14.1(1k), 14.1(1l), 14.1(2g), 14.1(2m), 14.1(2o), 14.1(2s), 14.1(2u), 14.1(2w), 14.1(2x), 14.2(1i), 14.2(1j), 14.2(1l), 14.2(2e), 14.2(2f), 14.2(2g), 14.2(3j), 14.2(3l), 14.2(3n), 14.2(3q), 14.2(4i), 14.2(4k), 14.2(4o), 14.2(4p), 14.2(5k), 14.2(5l), 14.2(5n), 14.2(6d), 14.2(6g), 14.2(6h), 14.2(6l), 14.2(7f), 14.2(7l), 14.2(6o), 14.2(7q), 14.2(7r), 14.2(7s), 14.2(7t), 14.2(7u), 14.2(7v), 14.2(7w), 15.0(1k), 15.0(1l), 15.0(2e), 15.0(2h), 15.1(1h), 15.1(2e), 15.1(3e), 15.1(4c), 15.2(1g), 15.2(2e), 15.2(2f), 15.2(2g), 15.2(2h), 15.2(3e), 15.2(3f), 15.2(3g), 15.2(4d), 15.2(4e), 15.2(5c), 15.2(5d), 15.2(5e), 15.2(4f), 15.2(6e), 15.2(6g), 15.2(7f), 15.2(7g), 15.2(8d), 15.2(8e), 15.2(8f), 15.2(8g), 15.2(8h), 16.0(1g), 16.0(1j), 16.0(2h), 16.0(2j), 16.0(3d), 16.0(3e), 15.3(1d)

Timeline

Official Publish: July 12th, 2023
Last Modified: August 2nd, 2024
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses (CWE)

CWE-330

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.