CVE-2021-1312: Cisco Elastic Services Controller Denial of Service Vulnerability

First published: Wed Jan 20 2021(Updated: )

A vulnerability in the system resource management of Cisco Elastic Services Controller (ESC) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) to the health monitor API on an affected device. The vulnerability is due to inadequate provisioning of kernel parameters for the maximum number of TCP connections and SYN backlog. An attacker could exploit this vulnerability by sending a flood of crafted TCP packets to an affected device. A successful exploit could allow the attacker to block TCP listening ports that are used by the health monitor API. This vulnerability only affects customers who use the health monitor API.

Credit: ykramarz@cisco.com

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

• collector/nvd-index
• agent/type
• agent/softwarecombine
• agent/weakness
• agent/author
• agent/title
• agent/references
• agent/severity
• agent/description
• agent/tags
• agent/first-publish-date
• agent/event
• collector/mitre-cve
• source/MITRE
• agent/last-modified-date
• agent/source
• vendor/cisco
• canonical/cisco elastic services controller
• version/cisco elastic services controller/5.3.0.94