Vulnerability-Lookup

CNVD-2017-36619

Vulnerability from cnvd - Published: 2017-12-07

Title

PSFTPd Windows FTP Server内存错误引用漏洞

Description

PSFTPd是一套FTP服务器软件。该软件支持FTP、FTPS和SFTP等协议。SFTP component是其中的一个安全文件传输组件。 PSFTPd 10.0.4 Build 729版本中SFTP组件存在内存错误引用漏洞。远程攻击者可通过向服务器发送特制的识别/版本字符串利用该漏洞造成拒绝服务（空指针逆向引用）。

Severity

中

Patch Name

PSFTPd Windows FTP Server内存错误引用漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： http://www.psftp.de/ftp-server/

Reference

http://seclists.org/bugtraq/2017/Nov/34

Impacted products

Name
Phpsftpd Phpsftpd 10.0.4 Build 729

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-15271"
    }
  },
  "description": "PSFTPd\u662f\u4e00\u5957FTP\u670d\u52a1\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u652f\u6301FTP\u3001FTPS\u548cSFTP\u7b49\u534f\u8bae\u3002SFTP component\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u5b89\u5168\u6587\u4ef6\u4f20\u8f93\u7ec4\u4ef6\u3002\r\n\r\nPSFTPd 10.0.4 Build 729\u7248\u672c\u4e2dSFTP\u7ec4\u4ef6\u5b58\u5728\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411\u670d\u52a1\u5668\u53d1\u9001\u7279\u5236\u7684\u8bc6\u522b/\u7248\u672c\u5b57\u7b26\u4e32\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\uff09\u3002",
  "discovererName": "X41 D-Sec GmbH, Eric Sesterhenn, Markus Vervier",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttp://www.psftp.de/ftp-server/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-36619",
  "openTime": "2017-12-07",
  "patchDescription": "PSFTPd\u662f\u4e00\u5957FTP\u670d\u52a1\u5668\u8f6f\u4ef6\u3002\u8be5\u8f6f\u4ef6\u652f\u6301FTP\u3001FTPS\u548cSFTP\u7b49\u534f\u8bae\u3002SFTP component\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u5b89\u5168\u6587\u4ef6\u4f20\u8f93\u7ec4\u4ef6\u3002\r\n\r\nPSFTPd 10.0.4 Build 729\u7248\u672c\u4e2dSFTP\u7ec4\u4ef6\u5b58\u5728\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411\u670d\u52a1\u5668\u53d1\u9001\u7279\u5236\u7684\u8bc6\u522b/\u7248\u672c\u5b57\u7b26\u4e32\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\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": "PSFTPd Windows FTP Server\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Phpsftpd Phpsftpd 10.0.4 Build 729"
  },
  "referenceLink": "http://seclists.org/bugtraq/2017/Nov/34",
  "serverity": "\u4e2d",
  "submitTime": "2017-11-15",
  "title": "PSFTPd Windows FTP Server\u5185\u5b58\u9519\u8bef\u5f15\u7528\u6f0f\u6d1e"
}

CVE-2017-15271 (GCVE-0-2017-15271)

Vulnerability from cvelistv5 – Published: 2017-11-15 16:00 – Updated: 2024-08-05 19:50

Summary

A use-after-free issue could be triggered remotely in the SFTP component of PSFTPd 10.0.4 Build 729. This issue could be triggered prior to authentication. The PSFTPd server did not automatically restart, which enabled attackers to perform a very effective DoS attack against this service. By sending a crafted SSH identification / version string to the server, a NULL pointer dereference could be caused, apparently because of a race condition in the window message handling, performing the cleanup for invalid connections. This incorrect cleanup code has a use-after-free.

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2358 records in the last 180 days details

References

4 references

URL	Tags
http://packetstormsecurity.com/files/144972/PSFTP…	x_refsource_MISC
http://www.securityfocus.com/archive/1/541518/100…	mailing-listx_refsource_BUGTRAQ
https://www.x41-dsec.de/lab/advisories/x41-2017-0…	x_refsource_MISC
https://www.exploit-db.com/exploits/43144/	exploitx_refsource_EXPLOIT-DB

Date Public

2017-11-10 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
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          "dateUpdated": "2024-08-05T19:50:16.444Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/144972/PSFTPd-Windows-FTP-Server-10.0.4-Build-729-Use-After-Free-Log-Injection.html"
          },
          {
            "name": "20171110 Advisory X41-2017-006: Multiple Vulnerabilities in PSFTPd Windows FTP Server",
            "tags": [
              "mailing-list",
              "x_refsource_BUGTRAQ",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/archive/1/541518/100/0/threaded"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.x41-dsec.de/lab/advisories/x41-2017-006-psftpd/"
          },
          {
            "name": "43144",
            "tags": [
              "exploit",
              "x_refsource_EXPLOIT-DB",
              "x_transferred"
            ],
            "url": "https://www.exploit-db.com/exploits/43144/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
            }
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      ],
      "datePublic": "2017-11-10T00:00:00.000Z",
      "descriptions": [
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          "lang": "en",
          "value": "A use-after-free issue could be triggered remotely in the SFTP component of PSFTPd 10.0.4 Build 729. This issue could be triggered prior to authentication. The PSFTPd server did not automatically restart, which enabled attackers to perform a very effective DoS attack against this service. By sending a crafted SSH identification / version string to the server, a NULL pointer dereference could be caused, apparently because of a race condition in the window message handling, performing the cleanup for invalid connections. This incorrect cleanup code has a use-after-free."
        }
      ],
      "problemTypes": [
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      "providerMetadata": {
        "dateUpdated": "2018-10-09T18:57:01.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
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      "references": [
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        },
        {
          "name": "20171110 Advisory X41-2017-006: Multiple Vulnerabilities in PSFTPd Windows FTP Server",
          "tags": [
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            "x_refsource_BUGTRAQ"
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          "url": "http://www.securityfocus.com/archive/1/541518/100/0/threaded"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.x41-dsec.de/lab/advisories/x41-2017-006-psftpd/"
        },
        {
          "name": "43144",
          "tags": [
            "exploit",
            "x_refsource_EXPLOIT-DB"
          ],
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        }
      ],
      "x_legacyV4Record": {
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          "ASSIGNER": "cve@mitre.org",
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        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
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                      "version": {
                        "version_data": [
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                      }
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        "problemtype": {
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            },
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              "name": "20171110 Advisory X41-2017-006: Multiple Vulnerabilities in PSFTPd Windows FTP Server",
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            },
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              "refsource": "MISC",
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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.

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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.
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