PT-2017-17202 · Cisco · Cisco Ucs C-Series Rack Servers

Published 2017-05-22 · Updated 2017-07-08 · CVE-2017-6633

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Cisco UCS C-Series Rack Servers version 3.0(0.234)

Description A vulnerability in the TCP throttling process could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The issue is due to insufficient rate-limiting protection. An attacker could exploit this by sending a high rate of TCP SYN packets to a specific TCP listening port, causing it to stop accepting new connections.

Recommendations For Cisco UCS C-Series Rack Servers version 3.0(0.234), consider implementing rate-limiting measures on TCP SYN packets to prevent excessive connection requests until a fix is available. As a temporary workaround, restrict access to specific TCP listening ports to minimize the risk of exploitation.

Fix

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2017-6633

Affected Products

Cisco Ucs C-Series Rack Servers

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2017-6633 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170517-ucsc · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-6633 · Vendor Advisory
• http://securitytracker.com/id/1038513 · Note
• http://securityfocus.com/bid/98525 · Note