Vulnerability-Lookup

CNVD-2019-02498

Vulnerability from cnvd - Published: 2019-01-23

Title

Knc Kerberized NetCat拒绝服务漏洞

Description

Kerberised NetCat 1.11-1之前版本中的‘read_packet’函数存在拒绝服务漏洞。远程攻击者可利用该漏洞造成拒绝服务（内存耗尽）。

Severity

中

Patch Name

Knc Kerberized NetCat拒绝服务漏洞的补丁

Patch Description

Kerberised NetCat 1.11-1之前版本中的‘read_packet’函数存在拒绝服务漏洞。远程攻击者可利用该漏洞造成拒绝服务（内存耗尽）。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://github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1

Reference

https://www.exploitalert.com/view-details.html?id=31603

Impacted products

Name
secure-endpoints Kerberised NetCat <1.11-1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-9732"
    }
  },
  "description": "Kerberised NetCat 1.11-1\u4e4b\u524d\u7248\u672c\u4e2d\u7684\u2018read_packet\u2019\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u5b58\u8017\u5c3d\uff09\u3002",
  "discovererName": "unknwon",
  "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://github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-02498",
  "openTime": "2019-01-23",
  "patchDescription": "Kerberised NetCat 1.11-1\u4e4b\u524d\u7248\u672c\u4e2d\u7684\u2018read_packet\u2019\u51fd\u6570\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u5185\u5b58\u8017\u5c3d\uff09\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": "Knc Kerberized NetCat\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "secure-endpoints Kerberised NetCat \u003c1.11-1"
  },
  "referenceLink": "https://www.exploitalert.com/view-details.html?id=31603",
  "serverity": "\u4e2d",
  "submitTime": "2018-12-04",
  "title": "Knc Kerberized NetCat\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2017-9732 (GCVE-0-2017-9732)

Vulnerability from cvelistv5 – Published: 2018-12-20 22:00 – Updated: 2024-08-05 17:18

Summary

The read_packet function in knc (Kerberised NetCat) before 1.11-1 is vulnerable to denial of service (memory exhaustion) that can be exploited remotely without authentication, possibly affecting another services running on the targeted host.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/elric1/knc/commit/f237f3e09ecb…	x_refsource_CONFIRM
	http://seclists.org/fulldisclosure/2018/Nov/65	mailing-listx_refsource_FULLDISC
	http://packetstormsecurity.com/files/150534/knc-K…	x_refsource_MISC
	https://github.com/irsl/knc-memory-exhaustion/	x_refsource_MISC

Date Public ?

2018-11-29 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T17:18:01.106Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1"
          },
          {
            "name": "20181130 CVE-2017-9732: knc (kerberized netcat) memory exhaustion",
            "tags": [
              "mailing-list",
              "x_refsource_FULLDISC",
              "x_transferred"
            ],
            "url": "http://seclists.org/fulldisclosure/2018/Nov/65"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/150534/knc-Kerberized-NetCat-Denial-Of-Service.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/irsl/knc-memory-exhaustion/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
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      ],
      "datePublic": "2018-11-29T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The read_packet function in knc (Kerberised NetCat) before 1.11-1 is vulnerable to denial of service (memory exhaustion) that can be exploited remotely without authentication, possibly affecting another services running on the targeted host."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
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              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-12-20T21:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
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          "tags": [
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          "url": "https://github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1"
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        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/150534/knc-Kerberized-NetCat-Denial-Of-Service.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/irsl/knc-memory-exhaustion/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2017-9732",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
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                          {
                            "version_value": "n/a"
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                      }
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        "problemtype": {
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                  "value": "n/a"
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        "references": {
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            {
              "name": "https://github.com/elric1/knc/commit/f237f3e09ecbaf59c897f5046538a7b1a3fa40c1",
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            },
            {
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              "refsource": "FULLDISC",
              "url": "http://seclists.org/fulldisclosure/2018/Nov/65"
            },
            {
              "name": "http://packetstormsecurity.com/files/150534/knc-Kerberized-NetCat-Denial-Of-Service.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/150534/knc-Kerberized-NetCat-Denial-Of-Service.html"
            },
            {
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              "refsource": "MISC",
              "url": "https://github.com/irsl/knc-memory-exhaustion/"
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
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    "dateReserved": "2017-06-16T00:00:00.000Z",
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}

Sightings

Author	Source	Type	Date

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.

Action not permitted

CNVD-2019-02498

CVE-2017-9732 (GCVE-0-2017-9732)

Tags

Sightings

Nomenclature