cnvd - cnvd-2020-13520

CNVD-2020-13520

Vulnerability from cnvd - Published: 2020-02-26

Title

uftpd路径遍历漏洞

Description

uftpd是一款基于Linux平台的FTP/TFTP文件传输服务器。 uftpd 2.11之前版本中存在路径遍历漏洞。攻击者可借助多个不同的FTP命令利用该漏洞对文件系统上的任意位置进行读写操作。

Severity

中

Patch Name

uftpd路径遍历漏洞的补丁

Patch Description

uftpd是一款基于Linux平台的FTP/TFTP文件传输服务器。 uftpd 2.11之前版本中存在路径遍历漏洞。攻击者可借助多个不同的FTP命令利用该漏洞对文件系统上的任意位置进行读写操作。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/troglobit/uftpd/security/advisories/GHSA-wmx8-v7mx-6x9h

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-5221

Impacted products

Name
troglobit uftpd <2.11

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-5221",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-5221"
    }
  },
  "description": "uftpd\u662f\u4e00\u6b3e\u57fa\u4e8eLinux\u5e73\u53f0\u7684FTP/TFTP\u6587\u4ef6\u4f20\u8f93\u670d\u52a1\u5668\u3002\n\nuftpd 2.11\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u591a\u4e2a\u4e0d\u540c\u7684FTP\u547d\u4ee4\u5229\u7528\u8be5\u6f0f\u6d1e\u5bf9\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684\u4efb\u610f\u4f4d\u7f6e\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\u3002",
  "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/troglobit/uftpd/security/advisories/GHSA-wmx8-v7mx-6x9h",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-13520",
  "openTime": "2020-02-26",
  "patchDescription": "uftpd\u662f\u4e00\u6b3e\u57fa\u4e8eLinux\u5e73\u53f0\u7684FTP/TFTP\u6587\u4ef6\u4f20\u8f93\u670d\u52a1\u5668\u3002\r\n\r\nuftpd 2.11\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u591a\u4e2a\u4e0d\u540c\u7684FTP\u547d\u4ee4\u5229\u7528\u8be5\u6f0f\u6d1e\u5bf9\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684\u4efb\u610f\u4f4d\u7f6e\u8fdb\u884c\u8bfb\u5199\u64cd\u4f5c\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": "uftpd\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "troglobit uftpd \u003c2.11"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-5221",
  "serverity": "\u4e2d",
  "submitTime": "2020-02-18",
  "title": "uftpd\u8def\u5f84\u904d\u5386\u6f0f\u6d1e"
}

CVE-2020-5221 (GCVE-0-2020-5221)

Vulnerability from cvelistv5 – Published: 2020-01-22 18:50 – Updated: 2024-08-04 08:22

Title

Directory Traversal (Chroot Escape) vulnerability in uftpd

Summary

In uftpd before 2.11, it is possible for an unauthenticated user to perform a directory traversal attack using multiple different FTP commands and read and write to arbitrary locations on the filesystem due to the lack of a well-written chroot jail in compose_abspath(). This has been fixed in version 2.11

Severity ?

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M

References

URL

Tags

	https://github.com/troglobit/uftpd/security/advis…	x_refsource_CONFIRM
	https://github.com/troglobit/uftpd/commit/455b47d…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	troglobit	uftpd	Affected: < 2.11

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T08:22:08.876Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/troglobit/uftpd/security/advisories/GHSA-wmx8-v7mx-6x9h"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/troglobit/uftpd/commit/455b47d3756aed162d2d0ef7f40b549f3b5b30fe"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "uftpd",
          "vendor": "troglobit",
          "versions": [
            {
              "status": "affected",
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      ],
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "lang": "en",
              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2020-01-22T18:50:13",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
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          ],
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        },
        {
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          ],
          "url": "https://github.com/troglobit/uftpd/commit/455b47d3756aed162d2d0ef7f40b549f3b5b30fe"
        }
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      "source": {
        "advisory": "GHSA-wmx8-v7mx-6x9h",
        "discovery": "UNKNOWN"
      },
      "title": "Directory Traversal (Chroot Escape) vulnerability in uftpd",
      "x_legacyV4Record": {
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        },
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                "product": {
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                      "version": {
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            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L",
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  },
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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-2020-13520

CVE-2020-5221 (GCVE-0-2020-5221)

Tags

Sightings

Nomenclature