gsd-2021-31800
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Multiple path traversal vulnerabilities exist in smbserver.py in Impacket through 0.9.22. 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.
Aliases
Aliases
CVE-2021-31800


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-31800",
    "description": "Multiple path traversal vulnerabilities exist in smbserver.py in Impacket through 0.9.22. 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": "GSD-2021-31800",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-31800.html",
      "https://security.archlinux.org/CVE-2021-31800"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-31800"
      ],
      "details": "Multiple path traversal vulnerabilities exist in smbserver.py in Impacket through 0.9.22. 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": "GSD-2021-31800",
      "modified": "2023-12-13T01:23:13.141129Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2021-31800",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
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          }
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            "url": "https://github.com/SecureAuthCorp/impacket/releases"
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            "url": "https://github.com/SecureAuthCorp/impacket/blob/cb6d43a677c338db930bc4e9161620832c1ec624/impacket/smbserver.py#L876"
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            "refsource": "MISC",
            "url": "https://github.com/SecureAuthCorp/impacket/blob/cb6d43a677c338db930bc4e9161620832c1ec624/impacket/smbserver.py#L3485"
          },
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            "refsource": "MISC",
            "url": "https://github.com/SecureAuthCorp/impacket/blob/cb6d43a677c338db930bc4e9161620832c1ec624/impacket/smbserver.py#L2008"
          },
          {
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          },
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          },
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          },
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            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IPXDPWCAPVX3UWYZ3N2T5OLBSBBUHJP6/"
          }
        ]
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003c=0.9.22",
          "affected_versions": "All versions up to 0.9.22",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-22",
            "CWE-937"
          ],
          "date": "2021-05-26",
          "description": "Multiple path traversal vulnerabilities exist in `smbserver.py`. 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.",
          "fixed_versions": [],
          "identifier": "CVE-2021-31800",
          "identifiers": [
            "CVE-2021-31800"
          ],
          "not_impacted": "",
          "package_slug": "pypi/impacket",
          "pubdate": "2021-05-05",
          "solution": "Unfortunately, there is no solution available yet.",
          "title": "Path Traversal",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-31800"
          ],
          "uuid": "dbd466b1-8bdb-4cab-8439-e352ee5e6f8c"
        }
      ]
    },
    "nvd.nist.gov": {
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                "cpe_name": [],
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      "cve": {
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            }
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        "references": {
          "reference_data": [
            {
              "name": "https://github.com/SecureAuthCorp/impacket/blob/cb6d43a677c338db930bc4e9161620832c1ec624/impacket/smbserver.py#L2008",
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                "Third Party Advisory"
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 7.5,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2021-05-26T13:10Z",
      "publishedDate": "2021-05-05T11:15Z"
    }
  }
}


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