cnvd - cnvd-2016-11746

cnvd-2016-11746

Vulnerability from cnvd

Title: LXC目录遍历漏洞

Description:

LXC是Linux内核容器功能的一个用户空间接口，它通过强大的API和简单的工具，使Linux用户易于创建和管理系统或应用容器。

LXC存在目录遍历漏洞。由于程序未能充分用户提供的输入。攻击者可以利用漏洞使用目录遍历字符（'../'）访问或读取包含敏感信息的任意文件或访问受限目录外的文件以获取敏感信息并执行其他攻击。

Severity: 中

Patch Name: LXC目录遍历漏洞的补丁

Patch Description:

LXC是Linux内核容器功能的一个用户空间接口，它通过强大的API和简单的工具，使Linux用户易于创建和管理系统或应用容器。

LXC存在目录遍历漏洞。由于程序未能充分用户提供的输入。攻击者可以利用漏洞使用目录遍历字符（'../'）访问或读取包含敏感信息的任意文件或访问受限目录外的文件以获取敏感信息并执行其他攻击。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:

用户可联系供应商获得补丁信息： https://linuxcontainers.org/

Reference: http://www.securityfocus.com/bid/94498

Impacted products

Name
['LXC LXC 2.0.5', 'LXC LXC 2.0.4', 'LXC LXC 2.0.3', 'LXC LXC 2.0.2', 'LXC LXC 2.0.1', 'LXC LXC 2.0', 'LXC LXC 1.0.8', 'LXC LXC 1.0.7', 'LXC LXC 1.0.6', 'LXC LXC 1.0.5', 'LXC LXC 1.0.4', 'LXC LXC 1.0.3', 'LXC LXC 1.0.2', 'LXC LXC 1.0.1', 'LXC LXC 1.0.0']

Show details on source website

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{
  "bids": {
    "bid": {
      "bidNumber": "94498"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-8649"
    }
  },
  "description": "LXC\u662fLinux\u5185\u6838\u5bb9\u5668\u529f\u80fd\u7684\u4e00\u4e2a\u7528\u6237\u7a7a\u95f4\u63a5\u53e3\uff0c\u5b83\u901a\u8fc7\u5f3a\u5927\u7684API\u548c\u7b80\u5355\u7684\u5de5\u5177\uff0c\u4f7fLinux\u7528\u6237\u6613\u4e8e\u521b\u5efa\u548c\u7ba1\u7406\u7cfb\u7edf\u6216\u5e94\u7528\u5bb9\u5668\u3002 \r\n\r\nLXC\u5b58\u5728\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e\u3002\u7531\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5145\u5206\u7528\u6237\u63d0\u4f9b\u7684\u8f93\u5165\u3002\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u6f0f\u6d1e\u4f7f\u7528\u76ee\u5f55\u904d\u5386\u5b57\u7b26\uff08\u0027../\u0027\uff09\u8bbf\u95ee\u6216\u8bfb\u53d6\u5305\u542b\u654f\u611f\u4fe1\u606f\u7684\u4efb\u610f\u6587\u4ef6\u6216\u8bbf\u95ee\u53d7\u9650\u76ee\u5f55\u5916\u7684\u6587\u4ef6\u4ee5\u83b7\u53d6\u654f\u611f\u4fe1\u606f\u5e76\u6267\u884c\u5176\u4ed6\u653b\u51fb\u3002",
  "discovererName": "Roman Fiedler from AIT",
  "formalWay": "\u7528\u6237\u53ef\u8054\u7cfb\u4f9b\u5e94\u5546\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttps://linuxcontainers.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-11746",
  "openTime": "2016-12-02",
  "patchDescription": "LXC\u662fLinux\u5185\u6838\u5bb9\u5668\u529f\u80fd\u7684\u4e00\u4e2a\u7528\u6237\u7a7a\u95f4\u63a5\u53e3\uff0c\u5b83\u901a\u8fc7\u5f3a\u5927\u7684API\u548c\u7b80\u5355\u7684\u5de5\u5177\uff0c\u4f7fLinux\u7528\u6237\u6613\u4e8e\u521b\u5efa\u548c\u7ba1\u7406\u7cfb\u7edf\u6216\u5e94\u7528\u5bb9\u5668\u3002 \r\n\r\nLXC\u5b58\u5728\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e\u3002\u7531\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5145\u5206\u7528\u6237\u63d0\u4f9b\u7684\u8f93\u5165\u3002\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u6f0f\u6d1e\u4f7f\u7528\u76ee\u5f55\u904d\u5386\u5b57\u7b26\uff08\u0027../\u0027\uff09\u8bbf\u95ee\u6216\u8bfb\u53d6\u5305\u542b\u654f\u611f\u4fe1\u606f\u7684\u4efb\u610f\u6587\u4ef6\u6216\u8bbf\u95ee\u53d7\u9650\u76ee\u5f55\u5916\u7684\u6587\u4ef6\u4ee5\u83b7\u53d6\u654f\u611f\u4fe1\u606f\u5e76\u6267\u884c\u5176\u4ed6\u653b\u51fb\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": "LXC\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "LXC LXC 2.0.5",
      "LXC LXC  2.0.4",
      "LXC LXC  2.0.3",
      "LXC LXC  2.0.2",
      "LXC LXC  2.0.1",
      "LXC LXC  2.0",
      "LXC LXC  1.0.8",
      "LXC LXC  1.0.7",
      "LXC LXC  1.0.6",
      "LXC LXC  1.0.5",
      "LXC LXC  1.0.4",
      "LXC LXC  1.0.3",
      "LXC LXC  1.0.2",
      "LXC LXC  1.0.1",
      "LXC LXC  1.0.0"
    ]
  },
  "referenceLink": "http://www.securityfocus.com/bid/94498",
  "serverity": "\u4e2d",
  "submitTime": "2016-11-29",
  "title": "LXC\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e"
}

CVE-2016-8649 (GCVE-0-2016-8649)

Vulnerability from cvelistv5

Published

2017-05-01 06:08

Modified

2024-08-06 02:27

Severity ?

CWE

container bypass

Summary

lxc-attach in LXC before 1.0.9 and 2.x before 2.0.6 allows an attacker inside of an unprivileged container to use an inherited file descriptor, of the host's /proc, to access the rest of the host's filesystem via the openat() family of syscalls.

References

▼	URL	Tags
	https://bugzilla.redhat.com/show_bug.cgi?id=1398242	x_refsource_CONFIRM
	https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1639345	x_refsource_CONFIRM
	https://github.com/lxc/lxc/commit/81f466d05f2a89cb4f122ef7f593ff3f279b165c	x_refsource_CONFIRM
	https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845465	x_refsource_CONFIRM
	https://security-tracker.debian.org/tracker/CVE-2016-8649	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/94498	vdb-entry, x_refsource_BID

Impacted products

	Vendor	Product	Version
	n/a	LXC before 1.0.9 and 2.x before 2.0.6	Version: LXC before 1.0.9 and 2.x before 2.0.6

Show details on NVD website

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T02:27:41.373Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1398242"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1639345"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/lxc/lxc/commit/81f466d05f2a89cb4f122ef7f593ff3f279b165c"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845465"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://security-tracker.debian.org/tracker/CVE-2016-8649"
          },
          {
            "name": "94498",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/94498"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "LXC before 1.0.9 and 2.x before 2.0.6",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "LXC before 1.0.9 and 2.x before 2.0.6"
            }
          ]
        }
      ],
      "datePublic": "2017-05-01T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "lxc-attach in LXC before 1.0.9 and 2.x before 2.0.6 allows an attacker inside of an unprivileged container to use an inherited file descriptor, of the host\u0027s /proc, to access the rest of the host\u0027s filesystem via the openat() family of syscalls."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "container bypass",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-05-01T06:57:01",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1398242"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1639345"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/lxc/lxc/commit/81f466d05f2a89cb4f122ef7f593ff3f279b165c"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=845465"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security-tracker.debian.org/tracker/CVE-2016-8649"
        },
        {
          "name": "94498",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/94498"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2016-8649",
    "datePublished": "2017-05-01T06:08:00",
    "dateReserved": "2016-10-12T00:00:00",
    "dateUpdated": "2024-08-06T02:27:41.373Z",
    "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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