Samba: smbd allows client access to unix domain sockets on the file system as root
概要
Samba: smbd allows client access to unix domain sockets on the file system as root
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR LSA or SPOOLSS, which Samba initiates on demand. However, due to inadequate sanitization of incoming client pipe names, allowing a client to send a pipe name containing Unix directory traversal characters (../). This could result in SMB clients connecting as root to Unix domain sockets outside the private directory. If an attacker or client managed to send a pipe name resolving to an external service using an existing Unix domain socket, it could potentially lead to unauthorized access to the service and consequential adverse events, including compromise or service crashes.
ディストリビューション別の修正状況
各ディストリビューションが公開している、この CVE の修正パッケージ
- Alpine Linux ALPINE-CVE-2023-3961 samba 修正版: 4.18.8-r0
- Debian DEBIAN-CVE-2023-3961 samba 修正版: 2:4.17.12+dfsg-0+deb12u1
参照URL
- advisory access.redhat.com
- advisory access.redhat.com
- advisory access.redhat.com
- advisory access.redhat.com
- advisory access.redhat.com
- advisory access.redhat.com
- advisory access.redhat.com
- advisory github.com
- advisory nvd.nist.gov
- advisory security.netapp.com
- report bugzilla.redhat.com
- report bugzilla.samba.org
- web access.redhat.com
- web lists.fedoraproject.org
- web samba.org