cnvd - cnvd-2020-07220

cnvd-2020-07220

Vulnerability from cnvd

Title: Cisco IOS XR IS–IS拒绝服务漏洞

Description:

Cisco IOS XR是一个完全模块化完全分布式的网络互联操作系统。

Cisco IOS XR 6.6.3、7.0.2、7.1.1、7.2.1之前版本的中间系统到中间系统(IS–IS)路由协议功能存在拒绝服务漏洞。该漏洞源于IS-IS进程对特定对象标识符(OID)的简单网络管理协议(SNMP)请求的处理不当。远程认证攻击者可通过发送特制SNMP请求利用该漏洞IS-IS进程拒绝服务。

Severity: 中

Patch Name: Cisco IOS XR IS–IS拒绝服务漏洞的补丁

Patch Description:

Cisco IOS XR是一个完全模块化完全分布式的网络互联操作系统。

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-20200122-ios-xr-dos

Reference: https://nvd.nist.gov/vuln/detail/CVE-2019-16027

Impacted products

Name
['Cisco IOS XR <6.6.3', 'Cisco IOS XR <7.0.2', 'Cisco IOS XR <7.1.1', 'Cisco IOS XR <7.2.1']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-16027",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-16027"
    }
  },
  "description": "Cisco IOS XR\u662f\u4e00\u4e2a\u5b8c\u5168\u6a21\u5757\u5316\u5b8c\u5168\u5206\u5e03\u5f0f\u7684\u7f51\u7edc\u4e92\u8054\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nCisco IOS XR 6.6.3\u30017.0.2\u30017.1.1\u30017.2.1\u4e4b\u524d\u7248\u672c\u7684\u4e2d\u95f4\u7cfb\u7edf\u5230\u4e2d\u95f4\u7cfb\u7edf(IS\u2013IS)\u8def\u7531\u534f\u8bae\u529f\u80fd\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eIS-IS\u8fdb\u7a0b\u5bf9\u7279\u5b9a\u5bf9\u8c61\u6807\u8bc6\u7b26(OID)\u7684\u7b80\u5355\u7f51\u7edc\u7ba1\u7406\u534f\u8bae(SNMP)\u8bf7\u6c42\u7684\u5904\u7406\u4e0d\u5f53\u3002\u8fdc\u7a0b\u8ba4\u8bc1\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u7279\u5236SNMP\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1eIS-IS\u8fdb\u7a0b\u62d2\u7edd\u670d\u52a1\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200122-ios-xr-dos",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-07220",
  "openTime": "2020-02-14",
  "patchDescription": "Cisco IOS XR\u662f\u4e00\u4e2a\u5b8c\u5168\u6a21\u5757\u5316\u5b8c\u5168\u5206\u5e03\u5f0f\u7684\u7f51\u7edc\u4e92\u8054\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco IOS XR 6.6.3\u30017.0.2\u30017.1.1\u30017.2.1\u4e4b\u524d\u7248\u672c\u7684\u4e2d\u95f4\u7cfb\u7edf\u5230\u4e2d\u95f4\u7cfb\u7edf(IS\u2013IS)\u8def\u7531\u534f\u8bae\u529f\u80fd\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eIS-IS\u8fdb\u7a0b\u5bf9\u7279\u5b9a\u5bf9\u8c61\u6807\u8bc6\u7b26(OID)\u7684\u7b80\u5355\u7f51\u7edc\u7ba1\u7406\u534f\u8bae(SNMP)\u8bf7\u6c42\u7684\u5904\u7406\u4e0d\u5f53\u3002\u8fdc\u7a0b\u8ba4\u8bc1\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u7279\u5236SNMP\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1eIS-IS\u8fdb\u7a0b\u62d2\u7edd\u670d\u52a1\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Cisco IOS XR IS\u2013IS\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Cisco IOS XR \u003c6.6.3",
      "Cisco IOS XR \u003c7.0.2",
      "Cisco IOS XR \u003c7.1.1",
      "Cisco IOS XR \u003c7.2.1"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-16027",
  "serverity": "\u4e2d",
  "submitTime": "2020-01-23",
  "title": "Cisco IOS XR IS\u2013IS\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2019-16027 (GCVE-0-2019-16027)

Vulnerability from cvelistv5

Published

2020-01-26 04:31

Modified

2024-11-15 17:46

Severity ?

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

CWE

CWE-20

Summary

A vulnerability in the implementation of the Intermediate System–to–Intermediate System (IS–IS) routing protocol functionality in Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition in the IS–IS process. The vulnerability is due to improper handling of a Simple Network Management Protocol (SNMP) request for specific Object Identifiers (OIDs) by the IS–IS process. An attacker could exploit this vulnerability by sending a crafted SNMP request to the affected device. A successful exploit could allow the attacker to cause a DoS condition in the IS–IS process.

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200122-ios-xr-dos	vendor-advisory, x_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IOS XR Software	Version: unspecified < 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 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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