cnvd - cnvd-2020-16656

cnvd-2020-16656

Vulnerability from cnvd

Title: Cisco IOS XR Software中Cisco Discovery协议格式字符串漏洞

Description:

Cisco IOS XR Software是美国思科（Cisco）公司的IOS软件系列（包括IOS T、IOS S和IOS XR）中的一套完全模块化、分布式的网络操作系统。

Cisco IOS XR Software中Cisco Discovery协议存在格式字符串漏洞。该漏洞源于程序没有正确验证输入的字符串。攻击者可通过发送恶意的Cisco Discovery Protocol数据包利用该漏洞以管理权限执行任意代码。

Severity: 高

Patch Name: Cisco IOS XR Software中Cisco Discovery协议格式字符串漏洞的补丁

Patch Description:

Cisco IOS XR Software是美国思科（Cisco）公司的IOS软件系列（包括IOS T、IOS S和IOS XR）中的一套完全模块化、分布式的网络操作系统。

Cisco IOS XR Software中Cisco Discovery协议存在格式字符串漏洞。该漏洞源于程序没有正确验证输入的字符串。攻击者可通过发送恶意的Cisco Discovery Protocol数据包利用该漏洞以管理权限执行任意代码。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:

用户可参考如下供应商提供的安全公告获得补丁信息： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-iosxr-cdp-rce

Reference: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-iosxr-cdp-rce

Impacted products

Name
['Cisco ASR 9000 Series Aggregation Services Routers', 'Cisco IOS XRv 9000 Router', 'Cisco Carrier Routing System (CRS)', 'Cisco Network Convergence System (NCS) 6000 Series Routers', 'Cisco Network Convergence System (NCS) 5500 Series Routers', 'Cisco Network Convergence System (NCS) 5000 Series Routers', 'Cisco Network Convergence System (NCS) 1000 Series Routers', 'Cisco Network Convergence System (NCS) 560 Series Routers', 'Cisco Network Convergence System (NCS) 540 Series Routers']

Name

['Cisco ASR 9000 Series Aggregation Services Routers', 'Cisco IOS XRv 9000 Router', 'Cisco Carrier Routing System (CRS)', 'Cisco Network Convergence System (NCS) 6000 Series Routers', 'Cisco Network Convergence System (NCS) 5500 Series Routers', 'Cisco Network Convergence System (NCS) 5000 Series Routers', 'Cisco Network Convergence System (NCS) 1000 Series Routers', 'Cisco Network Convergence System (NCS) 560 Series Routers', 'Cisco Network Convergence System (NCS) 540 Series Routers']

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-3118"
    }
  },
  "description": "Cisco IOS XR Software\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684IOS\u8f6f\u4ef6\u7cfb\u5217\uff08\u5305\u62ecIOS T\u3001IOS S\u548cIOS XR\uff09\u4e2d\u7684\u4e00\u5957\u5b8c\u5168\u6a21\u5757\u5316\u3001\u5206\u5e03\u5f0f\u7684\u7f51\u7edc\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nCisco IOS XR Software\u4e2dCisco Discovery\u534f\u8bae\u5b58\u5728\u683c\u5f0f\u5b57\u7b26\u4e32\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u6ca1\u6709\u6b63\u786e\u9a8c\u8bc1\u8f93\u5165\u7684\u5b57\u7b26\u4e32\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u6076\u610f\u7684Cisco Discovery Protocol\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5\u7ba1\u7406\u6743\u9650\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u4f9b\u5e94\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-iosxr-cdp-rce",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-16656",
  "openTime": "2020-03-11",
  "patchDescription": "Cisco IOS XR Software\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684IOS\u8f6f\u4ef6\u7cfb\u5217\uff08\u5305\u62ecIOS T\u3001IOS S\u548cIOS XR\uff09\u4e2d\u7684\u4e00\u5957\u5b8c\u5168\u6a21\u5757\u5316\u3001\u5206\u5e03\u5f0f\u7684\u7f51\u7edc\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco IOS XR Software\u4e2dCisco Discovery\u534f\u8bae\u5b58\u5728\u683c\u5f0f\u5b57\u7b26\u4e32\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u6ca1\u6709\u6b63\u786e\u9a8c\u8bc1\u8f93\u5165\u7684\u5b57\u7b26\u4e32\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u6076\u610f\u7684Cisco Discovery Protocol\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5\u7ba1\u7406\u6743\u9650\u6267\u884c\u4efb\u610f\u4ee3\u7801\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 Software\u4e2dCisco Discovery\u534f\u8bae\u683c\u5f0f\u5b57\u7b26\u4e32\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Cisco ASR 9000 Series Aggregation Services Routers",
      "Cisco IOS XRv 9000 Router",
      "Cisco Carrier Routing System (CRS)",
      "Cisco Network Convergence System (NCS) 6000 Series Routers",
      "Cisco Network Convergence System (NCS) 5500 Series Routers",
      "Cisco Network Convergence System (NCS) 5000 Series Routers",
      "Cisco Network Convergence System (NCS) 1000 Series Routers",
      "Cisco Network Convergence System (NCS) 560 Series Routers",
      "Cisco Network Convergence System (NCS) 540 Series Routers"
    ]
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-iosxr-cdp-rce",
  "serverity": "\u9ad8",
  "submitTime": "2020-02-06",
  "title": "Cisco IOS XR Software\u4e2dCisco Discovery\u534f\u8bae\u683c\u5f0f\u5b57\u7b26\u4e32\u6f0f\u6d1e"
}

CVE-2020-3118 (GCVE-0-2020-3118)

Vulnerability from cvelistv5

Published

2020-02-05 17:40

Modified

2025-07-30 01:45

Severity ?

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

CWE

CWE-134

Summary

A vulnerability in the Cisco Discovery Protocol implementation for Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to execute arbitrary code or cause a reload on an affected device. The vulnerability is due to improper validation of string input from certain fields in Cisco Discovery Protocol messages. An attacker could exploit this vulnerability by sending a malicious Cisco Discovery Protocol packet to an affected device. A successful exploit could allow the attacker to cause a stack overflow, which could allow the attacker to execute arbitrary code with administrative privileges on an affected device. Cisco Discovery Protocol is a Layer 2 protocol. To exploit this vulnerability, an attacker must be in the same broadcast domain as the affected device (Layer 2 adjacent).

References

▼	URL	Tags
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-iosxr-cdp-rce	vendor-advisory, x_refsource_CISCO
	http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IOS XR Software	Version: unspecified < 6.6.3

Show details on NVD website

JSON

To clipboard

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        "references": [
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            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200205-iosxr-cdp-rce"
          },
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              "x_transferred"
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            "url": "http://packetstormsecurity.com/files/156203/Cisco-Discovery-Protocol-CDP-Remote-Device-Takeover.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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                "id": "CVE-2020-3118",
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    ],
    "cna": {
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          "versions": [
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      "metrics": [
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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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