Vulnerability-Lookup

CNVD-2017-34218

Vulnerability from cnvd - Published: 2017-11-16

Title

Cisco IOS and IOS XE Software拒绝服务漏洞（CNVD-2017-34218）

Description

Cisco IOS和IOS XE都是美国思科（Cisco）公司为其网络设备开发的操作系统。 Cisco IOS Software/Cisco IOS XE Software在IKEv2模块中存在安全漏洞，未经身份验证的远程攻击者造成CPU耗尽、追踪消息、受影响设备重载，导致拒绝服务。

Severity

高

Patch Name

Cisco IOS and IOS XE Software拒绝服务漏洞（CNVD-2017-34218）的补丁

Patch Description

Cisco IOS和IOS XE都是美国思科（Cisco）公司为其网络设备开发的操作系统。 Cisco IOS Software/Cisco IOS XE Software在IKEv2模块中存在安全漏洞，未经身份验证的远程攻击者造成CPU耗尽、追踪消息、受影响设备重载，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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-ike

Reference

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-ike http://www.securityfocus.com/bid/101037

Impacted products

Name
['Cisco IOS ≥15，≤15.6', 'Cisco IOS XE ≥3.5，≤16.5']

Show details on source website

JSON

To clipboard

{
  "bids": {
    "bid": {
      "bidNumber": "101037"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-12237"
    }
  },
  "description": "Cisco IOS\u548cIOS XE\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco IOS Software/Cisco IOS XE Software\u5728IKEv2\u6a21\u5757\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u8fdc\u7a0b\u653b\u51fb\u8005\u9020\u6210CPU\u8017\u5c3d\u3001\u8ffd\u8e2a\u6d88\u606f\u3001\u53d7\u5f71\u54cd\u8bbe\u5907\u91cd\u8f7d\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Cisco",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-ike",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-34218",
  "openTime": "2017-11-16",
  "patchDescription": "Cisco IOS\u548cIOS XE\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco IOS Software/Cisco IOS XE Software\u5728IKEv2\u6a21\u5757\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u8fdc\u7a0b\u653b\u51fb\u8005\u9020\u6210CPU\u8017\u5c3d\u3001\u8ffd\u8e2a\u6d88\u606f\u3001\u53d7\u5f71\u54cd\u8bbe\u5907\u91cd\u8f7d\uff0c\u5bfc\u81f4\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 and IOS XE Software\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-34218\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Cisco IOS \u226515\uff0c\u226415.6",
      "Cisco IOS XE \u22653.5\uff0c\u226416.5"
    ]
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-ike\r\nhttp://www.securityfocus.com/bid/101037",
  "serverity": "\u9ad8",
  "submitTime": "2017-09-28",
  "title": "Cisco IOS and IOS XE Software\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2017-34218\uff09"
}

CVE-2017-12237 (GCVE-0-2017-12237)

Vulnerability from cvelistv5 – Published: 2017-09-28 07:00 – Updated: 2026-01-12 21:45

Summary

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS 15.0 through 15.6 and Cisco IOS XE 3.5 through 16.5 could allow an unauthenticated, remote attacker to cause high CPU utilization, traceback messages, or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to how an affected device processes certain IKEv2 packets. An attacker could exploit this vulnerability by sending specific IKEv2 packets to an affected device to be processed. A successful exploit could allow the attacker to cause high CPU utilization, traceback messages, or a reload of the affected device that leads to a DoS condition. This vulnerability affects Cisco devices that have the Internet Security Association and Key Management Protocol (ISAKMP) enabled. Although only IKEv2 packets can be used to trigger this vulnerability, devices that are running Cisco IOS Software or Cisco IOS XE Software are vulnerable when ISAKMP is enabled. A device does not need to be configured with any IKEv2-specific features to be vulnerable. Many features use IKEv2, including different types of VPNs such as the following: LAN-to-LAN VPN; Remote-access VPN, excluding SSL VPN; Dynamic Multipoint VPN (DMVPN); and FlexVPN. Cisco Bug IDs: CSCvc41277.

Severity

7.5 (High)


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

SSVC

Exploitation: active Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-08 17:32 UTC

CWE

CWE-399

Assigner

cisco mitre root

References

4 references

URL	Tags
https://tools.cisco.com/security/center/content/C…	x_refsource_CONFIRM
http://www.securitytracker.com/id/1039460	vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/bid/101037	vdb-entryx_refsource_BID
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

1 product

Vendor	Product	Version
n/a	Cisco IOS and IOS XE	Affected: Cisco IOS and IOS XE

Date Public

2017-09-28 00:00

Show details on NVD website

JSON

To clipboard

{
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          },
          {
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            "url": "http://www.securitytracker.com/id/1039460"
          },
          {
            "name": "101037",
            "tags": [
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              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/101037"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2017-12237",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
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                  }
                ],
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                "timestamp": "2024-11-08T17:32:46.130874Z",
                "version": "2.0.3"
              },
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            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2022-03-03",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-12237"
              },
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            }
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        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-12T21:45:24.703Z",
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          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "product": "Cisco IOS and IOS XE",
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          "versions": [
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            },
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}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.