PT-2024-2628 · Cisco · Cisco Ucs 6400 Series Fabric Interconnects+1

Published 2024-02-28 · Updated 2025-08-13 · CVE-2024-20344

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions Cisco UCS 6400 and 6500 Series Fabric Interconnects (affected versions not specified)

Description The issue is related to insufficient rate-limiting of TCP connections, which could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the Device Console UI of an affected device. This can be achieved by sending a high number of TCP packets to the Device Console UI, potentially causing the process to crash. A manual reload of the fabric interconnect is needed to restore complete functionality.

Recommendations For Cisco UCS 6400 and 6500 Series Fabric Interconnects in Intersight Managed Mode (IMM), consider implementing rate-limiting measures for TCP connections to the Device Console UI to prevent exploitation. As a temporary workaround, restrict access to the Device Console UI to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

BDU:2024-02695

CVE-2024-20344

Affected Products

Cisco Ucs 6400 Series Fabric Interconnects

Cisco Ucs 6500 Series Fabric Interconnects

References · 6

• https://osv.dev/vulnerability/CVE-2024-20344 · Vendor Advisory
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsfi-imm-syn-p6kZTDQC · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-20344 · Security Note
• https://bdu.fstec.ru/vul/2024-02695 · Security Note
• https://twitter.com/CVEnew/status/1762883650708783468 · Twitter Post
• https://t.me/cveNotify/132100 · Telegram Post