cnvd - cnvd-2020-72733

cnvd-2020-72733

Vulnerability from cnvd

Title: Cisco IOS XE拒绝服务漏洞（CNVD-2020-72733）

Description:

Cisco IOS XE是美国Cisco公司为其网络设备开发的一套基于Linux内核的模块化操作系统。

Cisco IOS XE的IP服务级别协议（SLA）响应程序功能存在拒绝服务漏洞。该漏洞源于IP SLA响应程序可能占用另一个功能使用的端口。攻击者可通过将特定的IP SLA控制数据包发送到IP SLA响应程序利用该漏洞导致拒绝服务。

Severity: 中

Patch Name: Cisco IOS XE拒绝服务漏洞（CNVD-2020-72733）的补丁

Patch Description:

Cisco IOS XE是美国Cisco公司为其网络设备开发的一套基于Linux内核的模块化操作系统。

Cisco IOS XE的IP服务级别协议（SLA）响应程序功能存在拒绝服务漏洞。该漏洞源于IP SLA响应程序可能占用另一个功能使用的端口。攻击者可通过将特定的IP SLA控制数据包发送到IP SLA响应程序利用该漏洞导致拒绝服务。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

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-ipsla-jw2DJmSv

Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-3422

Impacted products

Name
Cisco IOS XE

Show details on source website

JSON

To clipboard

{
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    "cve": {
      "cveNumber": "CVE-2020-3422",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-3422"
    }
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  "openTime": "2020-12-19",
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  "products": {
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  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3422",
  "serverity": "\u4e2d",
  "submitTime": "2020-09-25",
  "title": "Cisco IOS XE\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2020-72733\uff09"
}

CVE-2020-3422 (GCVE-0-2020-3422)

Vulnerability from cvelistv5

Published

2020-09-24 18:01

Modified

2024-11-13 17:56

Severity ?

8.6 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-371

Summary

A vulnerability in the IP Service Level Agreement (SLA) responder feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the IP SLA responder to reuse an existing port, resulting in a denial of service (DoS) condition. The vulnerability exists because the IP SLA responder could consume a port that could be used by another feature. An attacker could exploit this vulnerability by sending specific IP SLA control packets to the IP SLA responder on an affected device. The control packets must include the port number that could be used by another configured feature. A successful exploit could allow the attacker to cause an in-use port to be consumed by the IP SLA responder, impacting the feature that was using the port and resulting in a DoS condition.

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipsla-jw2DJmSv	vendor-advisory, x_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IOS XE Software	Version: n/a

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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