csaf_certbund - WID-SEC-W-2023-1314

WID-SEC-W-2023-1314

Vulnerability from csaf_certbund

Published

2023-05-29 22:00

Modified

2023-05-29 22:00

Summary

libarchive: Schwachstelle ermöglicht Manipulation von Dateien

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung

libarchive ist eine C Bibliothek und ein Kommandozeilen-Tool zum Lesen und Bearbeiten von tar, cpio, zip, ISO und anderen Formaten.

Angriff

Ein lokaler Angreifer kann eine Schwachstelle in libarchive ausnutzen, um Dateien zu manipulieren.

Betroffene Betriebssysteme

- UNIX - Linux - Windows - Sonstiges

JSON

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{
  "document": {
    "aggregate_severity": {
      "text": "niedrig"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "libarchive ist eine C Bibliothek und ein Kommandozeilen-Tool zum Lesen und Bearbeiten von tar, cpio, zip, ISO und anderen Formaten.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein lokaler Angreifer kann eine Schwachstelle in libarchive ausnutzen, um Dateien zu manipulieren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- UNIX\n- Linux\n- Windows\n- Sonstiges",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2023-1314 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-1314.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-1314 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-1314"
      },
      {
        "category": "external",
        "summary": "RedHat Bugzilla vom 2023-05-29",
        "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2210921"
      }
    ],
    "source_lang": "en-US",
    "title": "libarchive: Schwachstelle erm\u00f6glicht Manipulation von Dateien",
    "tracking": {
      "current_release_date": "2023-05-29T22:00:00.000+00:00",
      "generator": {
        "date": "2024-02-15T17:29:06.051+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.0"
        }
      },
      "id": "WID-SEC-W-2023-1314",
      "initial_release_date": "2023-05-29T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2023-05-29T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source libarchive \u003c= 3.6.2",
            "product": {
              "name": "Open Source libarchive \u003c= 3.6.2",
              "product_id": "T027890",
              "product_identification_helper": {
                "cpe": "cpe:/a:libarchive:libarchive:3.6.2"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-30571",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in libarchive. Der umask()-Aufruf in archive_write_disk_posix.c \u00e4ndert die umask des gesamten Prozesses f\u00fcr eine sehr kurze Zeitspanne; eine Race Condition mit einem anderen Thread kann zu einer permanenten umask 0-Einstellung f\u00fchren. Eine solche Race Condition k\u00f6nnte zur impliziten Erstellung von Verzeichnissen mit den Rechten 0777 (ohne das Sticky-Bit) f\u00fchren. Ein lokaler Angreifer kann diese Schwachstelle ausnutzen, um Dateien innerhalb dieser Verzeichnisse zu l\u00f6schen oder umzubenennen."
        }
      ],
      "product_status": {
        "last_affected": [
          "T027890"
        ]
      },
      "release_date": "2023-05-29T22:00:00Z",
      "title": "CVE-2023-30571"
    }
  ]
}

cve-2023-30571

Vulnerability from cvelistv5

Published

2023-05-29 00:00

Modified

2025-01-14 17:07

Severity ?

3.9 (Low) - CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N

Summary

Libarchive through 3.6.2 can cause directories to have world-writable permissions. The umask() call inside archive_write_disk_posix.c changes the umask of the whole process for a very short period of time; a race condition with another thread can lead to a permanent umask 0 setting. Such a race condition could lead to implicit directory creation with permissions 0777 (without the sticky bit), which means that any low-privileged local user can delete and rename files inside those directories.

References

▼	URL	Tags
	https://groups.google.com/g/libarchive-announce
	https://github.com/libarchive/libarchive/issues/1876

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T14:28:51.957Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://groups.google.com/g/libarchive-announce"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/libarchive/libarchive/issues/1876"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-30571",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-01-14T17:07:24.189386Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-362",
                "description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-01-14T17:07:29.493Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Libarchive through 3.6.2 can cause directories to have world-writable permissions. The umask() call inside archive_write_disk_posix.c changes the umask of the whole process for a very short period of time; a race condition with another thread can lead to a permanent umask 0 setting. Such a race condition could lead to implicit directory creation with permissions 0777 (without the sticky bit), which means that any low-privileged local user can delete and rename files inside those directories."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 3.9,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AC:H/AV:L/A:N/C:L/I:L/PR:L/S:C/UI:R",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2023-05-29T00:00:00",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://groups.google.com/g/libarchive-announce"
        },
        {
          "url": "https://github.com/libarchive/libarchive/issues/1876"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2023-30571",
    "datePublished": "2023-05-29T00:00:00",
    "dateReserved": "2023-04-12T00:00:00",
    "dateUpdated": "2025-01-14T17:07:29.493Z",
    "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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