| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <52D04C59.20406@quarksecurity.com> Date: Fri, 10 Jan 2014 14:39:05 -0500 From: Joshua Brindle <brindle@...rksecurity.com> To: Victor Porton <porton@...od.ru> CC: selinux@...ho.nsa.gov, linux-kernel@...r.kernel.org Subject: Re: Create new NetFilter table Victor Porton wrote: > I propose to create a new NetFilter table dedicated to rules created programmatically (not by explicit admin's iptables command). > > Otherwise an admin could be tempted to say `iptables -F security` which would probably break rules created for example by sandboxing software (which may follow same-origin policy to restrict one particular program to certain domain and port only). Note that in this case `iptables -F security` is a security risk (sandbox breaking)? > > New table could be possibly be called: > > - temp > - temporary > - auto > - automatic > - volatile > - daemon > - system > - sys > > In iptables docs it should be said that this table should not be manipulated manually. Is it possible that the solution to your sandboxing problem is seccomp filter? http://outflux.net/teach-seccomp/ You'd filter out any syscall that can make outbound connections and then only pass already opened sockets to the sandboxed threads? seccomp filter was actually created for sandboxing, so that user applications could voluntarily shed the ability to call certain syscalls before handling untrusted data. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists