pysec-2021-17
Vulnerability from pysec
Published
2021-05-05 11:15
Modified
2021-09-01 08:19
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
{ "affected": [ { "package": { "ecosystem": "PyPI", "name": "impacket", "purl": "pkg:pypi/impacket" }, "ranges": [ { "events": [ { "introduced": "0" }, { "fixed": "49c643bf66620646884ed141c94e5fdd85bcdd2f" } ], "repo": "https://github.com/SecureAuthCorp/impacket", "type": "GIT" }, { "events": [ { "introduced": "0.9.10" }, { "fixed": "0.9.23" } ], "type": "ECOSYSTEM" } ], "versions": [ "0.9.10", "0.9.11", "0.9.12", "0.9.13", "0.9.14", "0.9.15", "0.9.17", "0.9.18", "0.9.19", "0.9.20", "0.9.21", "0.9.22" ] } ], "aliases": [ "CVE-2021-31800", "GHSA-mj63-64x7-57xf" ], "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": "PYSEC-2021-17", "modified": "2021-09-01T08:19:03.897095Z", "published": "2021-05-05T11:15:00Z", "references": [ { "type": "WEB", "url": "https://github.com/SecureAuthCorp/impacket/blob/cb6d43a677c338db930bc4e9161620832c1ec624/impacket/smbserver.py#L2008" }, { "type": "WEB", "url": "https://github.com/SecureAuthCorp/impacket/releases" }, { "type": "WEB", "url": "https://github.com/SecureAuthCorp/impacket/blob/cb6d43a677c338db930bc4e9161620832c1ec624/impacket/smbserver.py#L876" }, { "type": "WEB", "url": "https://github.com/SecureAuthCorp/impacket/blob/cb6d43a677c338db930bc4e9161620832c1ec624/impacket/smbserver.py#L2958" }, { "type": "FIX", "url": "https://github.com/SecureAuthCorp/impacket/commit/49c643bf66620646884ed141c94e5fdd85bcdd2f" }, { "type": "WEB", "url": "https://github.com/SecureAuthCorp/impacket/blob/cb6d43a677c338db930bc4e9161620832c1ec624/impacket/smbserver.py#L3485" }, { "type": "WEB", "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UF56LYB27LHEIFJTFHU3M75NMNNK2SCG/" }, { "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": "ADVISORY", "url": "https://github.com/advisories/GHSA-mj63-64x7-57xf" } ] }
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Sightings
Author | Source | Type | Date |
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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.