Vulnerability-Lookup

CNVD-2015-03955

Vulnerability from cnvd - Published: 2015-06-25

Title

Cisco IOS XR SSH链接终止拒绝服务漏洞

Description

Cisco IOS XR是Cisco IOS软件家族的一员,使用基于微内核分配操作系统架构。 Cisco IOS XR SSH处理存在安全漏洞，允许远程通过验证的用户断开SSH链接使vty变得不稳定，使后续的SSH或Telnet变得不可用。

Severity

中

Patch Name

Cisco IOS XR SSH链接终止拒绝服务漏洞的补丁

Patch Description

Cisco IOS XR是Cisco IOS软件家族的一员,使用基于微内核分配操作系统架构。Cisco IOS XR SSH处理存在安全漏洞，允许远程通过验证的用户断开SSH链接使vty变得不稳定，使后续的SSH或Telnet变得不可用。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

用户可参考如下厂商提供的安全公告获取补丁以修复该漏洞： http://tools.cisco.com/security/center/viewAlert.x?alertId=39402

Reference

http://tools.cisco.com/security/center/viewAlert.x?alertId=39402

Impacted products

Name
Cisco IOS XR

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-4195"
    }
  },
  "description": "Cisco IOS XR\u662fCisco IOS\u8f6f\u4ef6\u5bb6\u65cf\u7684\u4e00\u5458,\u4f7f\u7528\u57fa\u4e8e\u5fae\u5185\u6838\u5206\u914d\u64cd\u4f5c\u7cfb\u7edf\u67b6\u6784\u3002\r\n\r\nCisco IOS XR SSH\u5904\u7406\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u901a\u8fc7\u9a8c\u8bc1\u7684\u7528\u6237\u65ad\u5f00SSH\u94fe\u63a5\u4f7fvty\u53d8\u5f97\u4e0d\u7a33\u5b9a\uff0c\u4f7f\u540e\u7eed\u7684SSH\u6216Telnet\u53d8\u5f97\u4e0d\u53ef\u7528\u3002",
  "discovererName": "Cisco",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u53d6\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttp://tools.cisco.com/security/center/viewAlert.x?alertId=39402",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-03955",
  "openTime": "2015-06-25",
  "patchDescription": "Cisco IOS XR\u662fCisco IOS\u8f6f\u4ef6\u5bb6\u65cf\u7684\u4e00\u5458,\u4f7f\u7528\u57fa\u4e8e\u5fae\u5185\u6838\u5206\u914d\u64cd\u4f5c\u7cfb\u7edf\u67b6\u6784\u3002Cisco IOS XR SSH\u5904\u7406\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5141\u8bb8\u8fdc\u7a0b\u901a\u8fc7\u9a8c\u8bc1\u7684\u7528\u6237\u65ad\u5f00SSH\u94fe\u63a5\u4f7fvty\u53d8\u5f97\u4e0d\u7a33\u5b9a\uff0c\u4f7f\u540e\u7eed\u7684SSH\u6216Telnet\u53d8\u5f97\u4e0d\u53ef\u7528\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 SSH\u94fe\u63a5\u7ec8\u6b62\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco IOS XR"
  },
  "referenceLink": "http://tools.cisco.com/security/center/viewAlert.x?alertId=39402",
  "serverity": "\u4e2d",
  "submitTime": "2015-06-23",
  "title": "Cisco IOS XR SSH\u94fe\u63a5\u7ec8\u6b62\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2015-4195 (GCVE-0-2015-4195)

Vulnerability from cvelistv5 – Published: 2015-06-19 01:00 – Updated: 2024-08-06 06:04

Summary

Cisco IOS XR 5.1.1.K9SEC allows remote authenticated users to cause a denial of service (vty error, and SSH and TELNET outage) via a crafted disconnect action within an SSH session, aka Bug ID CSCul63127.

Severity

No CVSS data available.

CWE

Assigner

cisco mitre root

References

3 references

URL	Tags
http://www.securityfocus.com/bid/75295	vdb-entryx_refsource_BID
http://tools.cisco.com/security/center/viewAlert.…	vendor-advisoryx_refsource_CISCO
http://www.securitytracker.com/id/1032661	vdb-entryx_refsource_SECTRACK

Date Public

2015-06-18 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T06:04:03.030Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "75295",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/75295"
          },
          {
            "name": "20150618 Cisco IOS XR SSH Disconnect Error Denial of Service Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=39402"
          },
          {
            "name": "1032661",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1032661"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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            }
          ]
        }
      ],
      "datePublic": "2015-06-18T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Cisco IOS XR 5.1.1.K9SEC allows remote authenticated users to cause a denial of service (vty error, and SSH and TELNET outage) via a crafted disconnect action within an SSH session, aka Bug ID CSCul63127."
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2016-12-23T18:57:01.000Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "75295",
          "tags": [
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            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/75295"
        },
        {
          "name": "20150618 Cisco IOS XR SSH Disconnect Error Denial of Service Vulnerability",
          "tags": [
            "vendor-advisory",
            "x_refsource_CISCO"
          ],
          "url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=39402"
        },
        {
          "name": "1032661",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1032661"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "ID": "CVE-2015-4195",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
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                },
                "vendor_name": "n/a"
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            }
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        "problemtype": {
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              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/75295"
            },
            {
              "name": "20150618 Cisco IOS XR SSH Disconnect Error Denial of Service Vulnerability",
              "refsource": "CISCO",
              "url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=39402"
            },
            {
              "name": "1032661",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1032661"
            }
          ]
        }
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  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
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    "datePublished": "2015-06-19T01:00:00.000Z",
    "dateReserved": "2015-06-04T00:00:00.000Z",
    "dateUpdated": "2024-08-06T06:04:03.030Z",
    "state": "PUBLISHED"
  },
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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.

Action not permitted

CNVD-2015-03955

CVE-2015-4195 (GCVE-0-2015-4195)

Tags

Sightings

Nomenclature

Related by attack behaviour