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.
{ "nvd_published_at": "2021-05-05T11:15:00Z", "cwe_ids": [ "CWE-22" ], "severity": "CRITICAL", "github_reviewed": true, "github_reviewed_at": "2021-05-19T20:42:46Z" }