Vulnerability-Lookup

GHSA-FQ9Q-7WP8-GPR7

Vulnerability from github – Published: 2022-08-24 00:00 – Updated: 2022-08-27 00:00

Details

An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL of a file on the system and gain more privileges.

Severity

7.8 (High)


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

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2021-23177"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-08-23T16:15:00Z",
    "severity": "HIGH"
  },
  "details": "An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL of a file on the system and gain more privileges.",
  "id": "GHSA-fq9q-7wp8-gpr7",
  "modified": "2022-08-27T00:00:46Z",
  "published": "2022-08-24T00:00:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23177"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libarchive/libarchive/issues/1565"
    },
    {
      "type": "WEB",
      "url": "https://github.com/libarchive/libarchive/commit/fba4f123cc456d2b2538f811bb831483bf336bad"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2021-23177"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2024245"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-23177 (GCVE-0-2021-23177)

Vulnerability from cvelistv5 – Published: 2022-08-23 00:00 – Updated: 2024-08-03 19:05

Summary

Severity

No CVSS data available.

CWE

CWE-59 - - Improper Link Resolution Before File Access ('Link Following')

Assigner

redhat redhat root

References

5 references

URL	Tags
https://github.com/libarchive/libarchive/issues/1565
https://github.com/libarchive/libarchive/commit/f…
https://bugzilla.redhat.com/show_bug.cgi?id=2024245
https://access.redhat.com/security/cve/CVE-2021-23177
https://lists.debian.org/debian-lts-announce/2022…	mailing-list

Impacted products

1 product

Vendor	Product	Version
n/a	libarchive	Affected: Fixed in libarchive 3.5.2

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T19:05:55.631Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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        "references": [
          {
            "tags": [
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            "url": "https://github.com/libarchive/libarchive/issues/1565"
          },
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            "tags": [
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            "url": "https://github.com/libarchive/libarchive/commit/fba4f123cc456d2b2538f811bb831483bf336bad"
          },
          {
            "tags": [
              "x_transferred"
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            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2024245"
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              "x_transferred"
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            "tags": [
              "mailing-list",
              "x_transferred"
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            "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html"
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        "title": "CVE Program Container"
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    "cna": {
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        {
          "product": "libarchive",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Fixed in libarchive 3.5.2"
            }
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL of a file on the system and gain more privileges."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-59",
              "description": "CWE-59 - Improper Link Resolution Before File Access (\u0027Link Following\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2022-11-22T00:00:00.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
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          "url": "https://lists.debian.org/debian-lts-announce/2022/11/msg00030.html"
        }
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  },
  "cveMetadata": {
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    "assignerShortName": "redhat",
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    "datePublished": "2022-08-23T00:00:00.000Z",
    "dateReserved": "2021-12-16T00:00:00.000Z",
    "dateUpdated": "2024-08-03T19:05:55.631Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.