Date: Sun, 12 Nov 2017 15:42:34 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 222632] connect(2) not available in capability mode Message-ID: <bug-222632-8-9q1QkKWqVr@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-222632-8@https.bugs.freebsd.org/bugzilla/> References: <bug-222632-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222632 --- Comment #18 from Jan Kokemüller <jan.kokemueller@gmail.com> --- Created attachment 187942 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=187942&action=edit Disallow connectat/bindat AT_FDCWD in capabilities mode Here is a patch that disables connectat/bindat in capabilities mode when called with the AT_FDCWD parameter. It also: - adds documentation that connect and connectat(AT_FDCWD,...) are equivalent and therefore connectat is not restricted to AF_UNIX sockets. Same for bindat. - adds documentation that CAP_BIND and CAP_CONNECT are useless in cap mode - adds some tests Maybe there is still a use case for CAP_CONNECT/CAP_BIND: I think those rights can be used to lock down a raw, privileged socket created by a helper process. -- You are receiving this mail because: You are the assignee for the bug.help
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