GHSA-mj63-64x7-57xf
Vulnerability from github
Published
2021-06-18 18:43
Modified
2024-09-23 17:06
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Summary
Path traversal in impacket
Details

Multiple path traversal vulnerabilities exist in smbserver.py in Impacket before 0.9.23. An attacker that connects to a running smbserver instance can list and write to arbitrary files via ../ directory traversal. This could potentially be abused to achieve arbitrary code execution by replacing /etc/shadow or an SSH authorized key.

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{
  "affected": [
    {
      "ecosystem_specific": {
        "affected_functions": [
          "impacket.smbserver.findFirst2",
          "impacket.smbserver.queryPathInformation",
          "impacket.smbserver.SMBCommands.smbComNtCreateAndX"
        ]
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "impacket"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.9.23"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-31800"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-19T20:42:46Z",
    "nvd_published_at": "2021-05-05T11:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "Multiple path traversal vulnerabilities exist in smbserver.py in Impacket before 0.9.23. An attacker that connects to a running smbserver instance can list and write to arbitrary files via ../ directory traversal. This could potentially be abused to achieve arbitrary code execution by replacing /etc/shadow or an SSH authorized key.",
  "id": "GHSA-mj63-64x7-57xf",
  "modified": "2024-09-23T17:06:06Z",
  "published": "2021-06-18T18:43:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31800"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SecureAuthCorp/impacket/commit/49c643bf66620646884ed141c94e5fdd85bcdd2f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SecureAuthCorp/impacket/commit/99bd29e3995c254e2d6f6c2e3454e4271665955a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SecureAuthCorp/impacket/blob/cb6d43a677c338db930bc4e9161620832c1ec624/impacket/smbserver.py#L2008"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SecureAuthCorp/impacket/blob/cb6d43a677c338db930bc4e9161620832c1ec624/impacket/smbserver.py#L2958"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SecureAuthCorp/impacket/blob/cb6d43a677c338db930bc4e9161620832c1ec624/impacket/smbserver.py#L3485"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SecureAuthCorp/impacket/blob/cb6d43a677c338db930bc4e9161620832c1ec624/impacket/smbserver.py#L876"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SecureAuthCorp/impacket/releases"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SecureAuthCorp/impacket/releases/tag/impacket_0_9_23"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-mj63-64x7-57xf"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/fortra/impacket"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/impacket/PYSEC-2021-17.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IPXDPWCAPVX3UWYZ3N2T5OLBSBBUHJP6"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KRV2C5DATXBHG6TF6CEEX54KZ75THQS3"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UF56LYB27LHEIFJTFHU3M75NMNNK2SCG"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Path traversal in impacket"
}


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