cnvd - cnvd-2017-05227

cnvd-2017-05227

Vulnerability from cnvd

Title: ProFTPD本地安全绕过漏洞

Description:

ProFTPD是一个Unix平台上或是类Unix平台上（如Linux, FreeBSD等）的FTP服务器程序。

ProFTPD 1.3.5e之前和1.3.6rc5之前的1.3.6版本存在本地安全绕过漏洞，本地攻击者可以绕过AllowChrootSymlinks控件，用一个符号链接替换一个路径组件（而不是最后一个）。

Severity: 低

Patch Name: ProFTPD本地安全绕过漏洞的补丁

Patch Description:

ProFTPD是一个Unix平台上或是类Unix平台上（如Linux, FreeBSD等）的FTP服务器程序。

ProFTPD 1.3.5e之前和1.3.6rc5之前的1.3.6版本存在本地安全绕过漏洞，本地攻击者可以绕过AllowChrootSymlinks控件，用一个符号链接替换一个路径组件（而不是最后一个）。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:

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接: https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed

Reference: http://bugs.proftpd.org/show_bug.cgi?id=4295 http://www.securityfocus.com/bid/97409

Impacted products

Name
['Proftpd Proftpd <1.3.5e', 'Proftpd Proftpd 1.3.6，<1.3.6rc5']

Show details on source website

JSON

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{
  "bids": {
    "bid": {
      "bidNumber": "97409"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-7418",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7418"
    }
  },
  "description": "ProFTPD\u662f\u4e00\u4e2aUnix\u5e73\u53f0\u4e0a\u6216\u662f\u7c7bUnix\u5e73\u53f0\u4e0a\uff08\u5982Linux, FreeBSD\u7b49\uff09\u7684FTP\u670d\u52a1\u5668\u7a0b\u5e8f\u3002 \r\n\r\nProFTPD 1.3.5e\u4e4b\u524d\u548c1.3.6rc5\u4e4b\u524d\u76841.3.6\u7248\u672c\u5b58\u5728\u672c\u5730\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u4ee5\u7ed5\u8fc7AllowChrootSymlinks\u63a7\u4ef6\uff0c\u7528\u4e00\u4e2a\u7b26\u53f7\u94fe\u63a5\u66ff\u6362\u4e00\u4e2a\u8def\u5f84\u7ec4\u4ef6\uff08\u800c\u4e0d\u662f\u6700\u540e\u4e00\u4e2a\uff09\u3002",
  "discovererName": "TJ Saunders.",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5:\r\nhttps://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-05227",
  "openTime": "2017-04-24",
  "patchDescription": "ProFTPD\u662f\u4e00\u4e2aUnix\u5e73\u53f0\u4e0a\u6216\u662f\u7c7bUnix\u5e73\u53f0\u4e0a\uff08\u5982Linux, FreeBSD\u7b49\uff09\u7684FTP\u670d\u52a1\u5668\u7a0b\u5e8f\u3002 \r\n\r\nProFTPD 1.3.5e\u4e4b\u524d\u548c1.3.6rc5\u4e4b\u524d\u76841.3.6\u7248\u672c\u5b58\u5728\u672c\u5730\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u4ee5\u7ed5\u8fc7AllowChrootSymlinks\u63a7\u4ef6\uff0c\u7528\u4e00\u4e2a\u7b26\u53f7\u94fe\u63a5\u66ff\u6362\u4e00\u4e2a\u8def\u5f84\u7ec4\u4ef6\uff08\u800c\u4e0d\u662f\u6700\u540e\u4e00\u4e2a\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": "ProFTPD\u672c\u5730\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Proftpd Proftpd \u003c1.3.5e",
      "Proftpd Proftpd 1.3.6\uff0c\u003c1.3.6rc5"
    ]
  },
  "referenceLink": "http://bugs.proftpd.org/show_bug.cgi?id=4295\r\nhttp://www.securityfocus.com/bid/97409",
  "serverity": "\u4f4e",
  "submitTime": "2017-04-06",
  "title": "ProFTPD\u672c\u5730\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2017-7418 (GCVE-0-2017-7418)

Vulnerability from cvelistv5

Published

2017-04-04 17:00

Modified

2024-08-05 16:04

Severity ?

CWE

Summary

ProFTPD before 1.3.5e and 1.3.6 before 1.3.6rc5 controls whether the home directory of a user could contain a symbolic link through the AllowChrootSymlinks configuration option, but checks only the last path component when enforcing AllowChrootSymlinks. Attackers with local access could bypass the AllowChrootSymlinks control by replacing a path component (other than the last one) with a symbolic link. The threat model includes an attacker who is not granted full filesystem access by a hosting provider, but can reconfigure the home directory of an FTP user.

References

▼	URL	Tags
	https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed	x_refsource_CONFIRM
	https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f	x_refsource_CONFIRM
	http://bugs.proftpd.org/show_bug.cgi?id=4295	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/97409	vdb-entry, x_refsource_BID
	https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8	x_refsource_CONFIRM
	http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00004.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00022.html	vendor-advisory, x_refsource_SUSE
	http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.html	vendor-advisory, x_refsource_SUSE

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T16:04:11.362Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
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              "x_transferred"
            ],
            "url": "https://github.com/proftpd/proftpd/commit/ecff21e0d0e84f35c299ef91d7fda088e516d4ed"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "http://bugs.proftpd.org/show_bug.cgi?id=4295"
          },
          {
            "name": "97409",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/97409"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8"
          },
          {
            "name": "openSUSE-SU-2019:1836",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00004.html"
          },
          {
            "name": "openSUSE-SU-2019:1870",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00022.html"
          },
          {
            "name": "openSUSE-SU-2020:0031",
            "tags": [
              "vendor-advisory",
              "x_refsource_SUSE",
              "x_transferred"
            ],
            "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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        }
      ],
      "problemTypes": [
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        },
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          "url": "https://github.com/proftpd/proftpd/commit/f59593e6ff730b832dbe8754916cb5c821db579f"
        },
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          ],
          "url": "http://bugs.proftpd.org/show_bug.cgi?id=4295"
        },
        {
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          "tags": [
            "vdb-entry",
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          ],
          "url": "http://www.securityfocus.com/bid/97409"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/proftpd/proftpd/pull/444/commits/349addc3be4fcdad9bd4ec01ad1ccd916c898ed8"
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        {
          "name": "openSUSE-SU-2019:1836",
          "tags": [
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          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00004.html"
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          ],
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        },
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            "vendor-advisory",
            "x_refsource_SUSE"
          ],
          "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00009.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2017-7418",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
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        "problemtype": {
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  "cveMetadata": {
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    "cveId": "CVE-2017-7418",
    "datePublished": "2017-04-04T17:00:00",
    "dateReserved": "2017-04-04T00:00:00",
    "dateUpdated": "2024-08-05T16:04:11.362Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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