{
"id": "GHSA-mj63-64x7-57xf",
"aliases": [
"CVE-2021-31800"
],
"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.",
"summary": "Path traversal in impacket",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.9.23"
}
]
}
],
"package": {
"name": "impacket",
"ecosystem": "PyPI"
}
}
],
"modified": "2024-09-23T17:06:06Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V4",
"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"
}
],
"published": "2021-06-18T18:43:14Z",
"references": [
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-31800",
"type": "ADVISORY"
},
{
"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": "WEB"
},
{
"url": "https://github.com/advisories/GHSA-mj63-64x7-57xf",
"type": "ADVISORY"
},
{
"url": "https://github.com/fortra/impacket",
"type": "PACKAGE"
},
{
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/impacket/PYSEC-2021-17.yaml",
"type": "WEB"
},
{
"url": "https://lists.fedoraproject.org/archives/list/[email protected] /message/IPXDPWCAPVX3UWYZ3N2T5OLBSBBUHJP6",
"type": "WEB"
},
{
"url": "https://lists.fedoraproject.org/archives/list/[email protected] /message/KRV2C5DATXBHG6TF6CEEX54KZ75THQS3",
"type": "WEB"
},
{
"url": "https://lists.fedoraproject.org/archives/list/[email protected] /message/UF56LYB27LHEIFJTFHU3M75NMNNK2SCG",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-22"
],
"severity": "CRITICAL",
"github_reviewed": true,
"nvd_published_at": "2021-05-05T11:15:00Z",
"github_reviewed_at": "2021-05-19T20:42:46Z"
}
}