cnvd - cnvd-2021-09943

CNVD-2021-09943

Vulnerability from cnvd - Published: 2021-02-08

Title

Cisco Elastic Services Controller拒绝服务漏洞

Description

Cisco Elastic Services Controller (ESC)是一个虚拟网络功能管理器（VNFM），用于管理虚拟网络功能（VNF）的生命周期。 Cisco Elastic Services Controller 5.3.0.94及更早版本的系统资源管理存在拒绝服务漏洞。该漏洞源于对最大数量的TCP连接和SYN积压的内核参数配置不足。攻击者可通过发送大量TCP数据包利用该漏洞屏蔽运行状况监视器API使用的TCP侦听端口。

Severity

中

Patch Name

Cisco Elastic Services Controller拒绝服务漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新：https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esc-dos-4Gw6D527

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-1312

Impacted products

Name
Cisco Elastic Services Controller <=5.3.0.94

Show details on source website

JSON

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    "cve": {
      "cveNumber": "CVE-2021-1312",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1312"
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  "number": "CNVD-2021-09943",
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  "patchName": "Cisco Elastic Services Controller\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Elastic Services Controller \u003c=5.3.0.94"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-1312",
  "serverity": "\u4e2d",
  "submitTime": "2021-01-21",
  "title": "Cisco Elastic Services Controller\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2021-1312 (GCVE-0-2021-1312)

Vulnerability from cvelistv5 – Published: 2021-01-20 20:01 – Updated: 2024-11-12 20:20

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.

Severity ?

5.3 (Medium)


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

CWE

CWE-400

Assigner

cisco

References

URL

Tags

https://tools.cisco.com/security/center/content/C…

vendor-advisoryx_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco Elastic Services Controller	Affected: n/a

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2021-09943

CVE-2021-1312 (GCVE-0-2021-1312)

Tags

Sightings

Nomenclature