CVE-2023-2861 (GCVE-0-2023-2861)

Vulnerability from cvelistv5 – Published: 2023-12-06 06:19 – Updated: 2024-08-02 06:33
VLAI?
Summary
A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.
CWE
  • CWE-284 - Improper Access Control
Assigner
Impacted products
Vendor Product Version
Unaffected: 8.1.0-rc0 , < * (semver)
Credits
Red Hat would like to thank Jietao Xiao, Jinku Li, Wenbo Shen, and Yanwu Shen for reporting this issue.
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "qemu",
            "vendor": "qemu",
            "versions": [
              {
                "lessThanOrEqual": "8.1.0",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-2861",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-01-24T16:40:48.930612Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:16:52.155Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T06:33:05.791Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "vdb-entry",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/security/cve/CVE-2023-2861"
          },
          {
            "name": "RHBZ#2219266",
            "tags": [
              "issue-tracking",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2219266"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20240125-0005/"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20240229-0002/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://gitlab.com/qemu-project/qemu",
          "defaultStatus": "affected",
          "packageName": "qemu",
          "versions": [
            {
              "lessThan": "*",
              "status": "unaffected",
              "version": "8.1.0-rc0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Red Hat would like to thank Jietao Xiao, Jinku Li, Wenbo Shen, and Yanwu Shen for reporting this issue."
        }
      ],
      "datePublic": "2023-06-07T00:00:00+00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Low"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-04-19T13:40:08.248Z",
        "orgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
        "shortName": "fedora"
      },
      "references": [
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2023-2861"
        },
        {
          "name": "RHBZ#2219266",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2219266"
        },
        {
          "url": "https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20240125-0005/"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20240229-0002/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2023-05-16T00:00:00+00:00",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2023-06-07T00:00:00+00:00",
          "value": "Made public."
        }
      ],
      "title": "Qemu: 9pfs: improper access control on special files",
      "x_redhatCweChain": "CWE-284: Improper Access Control"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
    "assignerShortName": "fedora",
    "cveId": "CVE-2023-2861",
    "datePublished": "2023-12-06T06:19:40.625Z",
    "dateReserved": "2023-05-24T07:54:12.009Z",
    "dateUpdated": "2024-08-02T06:33:05.791Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"8.1.0\", \"matchCriteriaId\": \"A178AFEF-359C-427C-99C6-EC003039FF3B\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.\"}, {\"lang\": \"es\", \"value\": \"Se encontr\\u00f3 una falla en la implementaci\\u00f3n del sistema de archivos de paso 9p (9pfs) en QEMU. El servidor 9pfs no prohib\\u00eda la apertura de archivos especiales en el lado del host, lo que potencialmente permit\\u00eda que un cliente malicioso escapara del \\u00e1rbol 9p exportado creando y abriendo un archivo de dispositivo en la carpeta compartida.\"}]",
      "id": "CVE-2023-2861",
      "lastModified": "2024-11-21T07:59:26.520",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"patrick@puiterwijk.org\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N\", \"baseScore\": 6.0, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"HIGH\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 0.8, \"impactScore\": 5.2}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N\", \"baseScore\": 7.1, \"baseSeverity\": \"HIGH\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 1.8, \"impactScore\": 5.2}]}",
      "published": "2023-12-06T07:15:41.430",
      "references": "[{\"url\": \"https://access.redhat.com/security/cve/CVE-2023-2861\", \"source\": \"patrick@puiterwijk.org\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2219266\", \"source\": \"patrick@puiterwijk.org\", \"tags\": [\"Issue Tracking\", \"Patch\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html\", \"source\": \"patrick@puiterwijk.org\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20240125-0005/\", \"source\": \"patrick@puiterwijk.org\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20240229-0002/\", \"source\": \"patrick@puiterwijk.org\"}, {\"url\": \"https://access.redhat.com/security/cve/CVE-2023-2861\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2219266\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Issue Tracking\", \"Patch\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20240125-0005/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20240229-0002/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
      "sourceIdentifier": "patrick@puiterwijk.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"patrick@puiterwijk.org\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-284\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-Other\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-2861\",\"sourceIdentifier\":\"patrick@puiterwijk.org\",\"published\":\"2023-12-06T07:15:41.430\",\"lastModified\":\"2024-11-21T07:59:26.520\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.\"},{\"lang\":\"es\",\"value\":\"Se encontr\u00f3 una falla en la implementaci\u00f3n del sistema de archivos de paso 9p (9pfs) en QEMU. El servidor 9pfs no prohib\u00eda la apertura de archivos especiales en el lado del host, lo que potencialmente permit\u00eda que un cliente malicioso escapara del \u00e1rbol 9p exportado creando y abriendo un archivo de dispositivo en la carpeta compartida.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"patrick@puiterwijk.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N\",\"baseScore\":6.0,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":0.8,\"impactScore\":5.2},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"patrick@puiterwijk.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-284\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-Other\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"8.1.0\",\"matchCriteriaId\":\"A178AFEF-359C-427C-99C6-EC003039FF3B\"}]}]}],\"references\":[{\"url\":\"https://access.redhat.com/security/cve/CVE-2023-2861\",\"source\":\"patrick@puiterwijk.org\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2219266\",\"source\":\"patrick@puiterwijk.org\",\"tags\":[\"Issue Tracking\",\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html\",\"source\":\"patrick@puiterwijk.org\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20240125-0005/\",\"source\":\"patrick@puiterwijk.org\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20240229-0002/\",\"source\":\"patrick@puiterwijk.org\"},{\"url\":\"https://access.redhat.com/security/cve/CVE-2023-2861\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2219266\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Issue Tracking\",\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20240125-0005/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.netapp.com/advisory/ntap-20240229-0002/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://access.redhat.com/security/cve/CVE-2023-2861\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\", \"x_transferred\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2219266\", \"name\": \"RHBZ#2219266\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\", \"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20240125-0005/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20240229-0002/\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T06:33:05.791Z\"}}, {\"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-2861\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-01-24T16:40:48.930612Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:qemu:qemu:-:*:*:*:*:*:*:*\"], \"vendor\": \"qemu\", \"product\": \"qemu\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"8.1.0\"}], \"defaultStatus\": \"unknown\"}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-04-29T18:37:17.196Z\"}, \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"title\": \"Qemu: 9pfs: improper access control on special files\", \"credits\": [{\"lang\": \"en\", \"value\": \"Red Hat would like to thank Jietao Xiao, Jinku Li, Wenbo Shen, and Yanwu Shen for reporting this issue.\"}], \"metrics\": [{\"other\": {\"type\": \"Red Hat severity rating\", \"content\": {\"value\": \"Low\", \"namespace\": \"https://access.redhat.com/security/updates/classification/\"}}}, {\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 6, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"HIGH\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"versions\": [{\"status\": \"unaffected\", \"version\": \"8.1.0-rc0\", \"lessThan\": \"*\", \"versionType\": \"semver\"}], \"packageName\": \"qemu\", \"collectionURL\": \"https://gitlab.com/qemu-project/qemu\", \"defaultStatus\": \"affected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2023-05-16T00:00:00+00:00\", \"value\": \"Reported to Red Hat.\"}, {\"lang\": \"en\", \"time\": \"2023-06-07T00:00:00+00:00\", \"value\": \"Made public.\"}], \"datePublic\": \"2023-06-07T00:00:00+00:00\", \"references\": [{\"url\": \"https://access.redhat.com/security/cve/CVE-2023-2861\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2219266\", \"name\": \"RHBZ#2219266\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/03/msg00012.html\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20240125-0005/\"}, {\"url\": \"https://security.netapp.com/advisory/ntap-20240229-0002/\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. The 9pfs server did not prohibit opening special files on the host side, potentially allowing a malicious client to escape from the exported 9p tree by creating and opening a device file in the shared folder.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-284\", \"description\": \"Improper Access Control\"}]}], \"providerMetadata\": {\"orgId\": \"92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5\", \"shortName\": \"fedora\", \"dateUpdated\": \"2024-04-19T13:40:08.248Z\"}, \"x_redhatCweChain\": \"CWE-284: Improper Access Control\"}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-2861\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-08-02T06:33:05.791Z\", \"dateReserved\": \"2023-05-24T07:54:12.009Z\", \"assignerOrgId\": \"92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5\", \"datePublished\": \"2023-12-06T06:19:40.625Z\", \"assignerShortName\": \"fedora\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.


Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…