Vulnerability-Lookup

CNVD-2020-46837

Vulnerability from cnvd - Published: 2020-08-19

Title

vsftpd操作系统命令注入漏洞

Description

vsftpd是一款用于类Unix系统的FTP（文件传输协议）服务器。 vsftpd 2.3.4版本（2011年6月30日至2011年7月3日期间下载）中存在操作系统命令注入漏洞，该漏洞源于软件中存在可以打开shell的后门，攻击者可利用该漏洞执行命令。

Severity

高

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新：：https://github.com/dagwieers/vsftpd

Reference

https://nvd.nist.gov/vuln/detail/CVE-2011-2523

Impacted products

Name
Vsftpd Vsftpd 2.3.4

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2011-2523",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2011-2523"
    }
  },
  "description": "vsftpd\u662f\u4e00\u6b3e\u7528\u4e8e\u7c7bUnix\u7cfb\u7edf\u7684FTP\uff08\u6587\u4ef6\u4f20\u8f93\u534f\u8bae\uff09\u670d\u52a1\u5668\u3002\n\nvsftpd 2.3.4\u7248\u672c\uff082011\u5e746\u670830\u65e5\u81f32011\u5e747\u67083\u65e5\u671f\u95f4\u4e0b\u8f7d\uff09\u4e2d\u5b58\u5728\u64cd\u4f5c\u7cfb\u7edf\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8f6f\u4ef6\u4e2d\u5b58\u5728\u53ef\u4ee5\u6253\u5f00shell\u7684\u540e\u95e8\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6267\u884c\u547d\u4ee4\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\n\uff1ahttps://github.com/dagwieers/vsftpd",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-46837",
  "openTime": "2020-08-19",
  "products": {
    "product": "Vsftpd Vsftpd 2.3.4"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2011-2523",
  "serverity": "\u9ad8",
  "submitTime": "2019-12-04",
  "title": "vsftpd\u64cd\u4f5c\u7cfb\u7edf\u547d\u4ee4\u6ce8\u5165\u6f0f\u6d1e"
}

CVE-2011-2523 (GCVE-0-2011-2523)

Vulnerability from cvelistv5 – Published: 2019-11-27 20:36 – Updated: 2024-08-06 23:00

Summary

vsftpd 2.3.4 downloaded between 20110630 and 20110703 contains a backdoor which opens a shell on port 6200/tcp.

Severity

No CVSS data available.

CWE

UNKNOWN_TYPE

Assigner

redhat redhat root Scorecard

References

6 references

URL	Tags
https://security-tracker.debian.org/tracker/CVE-2…	x_refsource_MISC
https://access.redhat.com/security/cve/cve-2011-2523	x_refsource_MISC
https://www.openwall.com/lists/oss-security/2011/…	mailing-listx_refsource_MLIST
https://vigilance.fr/vulnerability/vsftpd-backdoo…	x_refsource_MISC
https://packetstormsecurity.com/files/102745/VSFT…	x_refsource_MISC
http://packetstormsecurity.com/files/162145/vsftp…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
vsftpd	vsftpd	Affected: 2.3.4 downloaded between 20110630 and 20110703

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T23:00:34.246Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://security-tracker.debian.org/tracker/CVE-2011-2523"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/security/cve/cve-2011-2523"
          },
          {
            "name": "[oss-security] 20110711 Re: vsftpd download backdoored",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://www.openwall.com/lists/oss-security/2011/07/11/5"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://vigilance.fr/vulnerability/vsftpd-backdoor-in-version-2-3-4-10805"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://packetstormsecurity.com/files/102745/VSFTPD-2.3.4-Backdoor-Command-Execution.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/162145/vsftpd-2.3.4-Backdoor-Command-Execution.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "vsftpd",
          "vendor": "vsftpd",
          "versions": [
            {
              "status": "affected",
              "version": "2.3.4 downloaded between 20110630 and 20110703"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "vsftpd 2.3.4 downloaded between 20110630 and 20110703 contains a backdoor which opens a shell on port 6200/tcp."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "UNKNOWN_TYPE",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-04-12T17:06:11.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://security-tracker.debian.org/tracker/CVE-2011-2523"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://access.redhat.com/security/cve/cve-2011-2523"
        },
        {
          "name": "[oss-security] 20110711 Re: vsftpd download backdoored",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://www.openwall.com/lists/oss-security/2011/07/11/5"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://vigilance.fr/vulnerability/vsftpd-backdoor-in-version-2-3-4-10805"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://packetstormsecurity.com/files/102745/VSFTPD-2.3.4-Backdoor-Command-Execution.html"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/162145/vsftpd-2.3.4-Backdoor-Command-Execution.html"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2011-2523",
    "datePublished": "2019-11-27T20:36:53.000Z",
    "dateReserved": "2011-06-15T00:00:00.000Z",
    "dateUpdated": "2024-08-06T23:00:34.246Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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.

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CNVD-2020-46837

CVE-2011-2523 (GCVE-0-2011-2523)

Tags

Sightings

Nomenclature

Related by attack behaviour