製品・ソフトウェアに関する情報
Cisco Elastic Services Controller におけるリソースの枯渇に関する脆弱性
Title Cisco Elastic Services Controller におけるリソースの枯渇に関する脆弱性
Summary

Cisco Elastic Services Controller (ESC) には、リソースの枯渇に関する脆弱性が存在します。

Possible impacts サービス運用妨害 (DoS) 状態にされる可能性があります。
Solution

ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。

Publication Date Jan. 20, 2021, midnight
Registration Date Oct. 11, 2021, 3:02 p.m.
Last Update Oct. 11, 2021, 3:02 p.m.
CVSS3.0 : 重要
Score 7.5
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS2.0 : 警告
Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Affected System
シスコシステムズ
Cisco Elastic Services Controller 
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
Change Log
No Changed Details Date of change
1 [2021年10月11日]
  掲載
Oct. 11, 2021, 3:02 p.m.

NVD Vulnerability Information
CVE-2021-1312
Summary

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.

Publication Date Jan. 21, 2021, 5:15 a.m.
Registration Date Jan. 26, 2021, 10:40 a.m.
Last Update Nov. 21, 2024, 2:44 p.m.
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:cisco:elastic_services_controller:*:*:*:*:*:*:*:* 5.3.0.94
Related information, measures and tools
Common Vulnerabilities List