From mboxrd@z Thu Jan 1 00:00:00 1970 From: zohar@linux.vnet.ibm.com (Mimi Zohar) Date: Fri, 09 Jun 2017 09:16:32 -0400 Subject: [PATCH v2 1/1] Add Trusted Path Execution as a stackable LSM In-Reply-To: References: <20170608034349.31876-1-matt@nmatt.com> <20170608034349.31876-2-matt@nmatt.com> <94ba5ebb-952b-2037-799e-07306629a6f9@nmatt.com> <1497003507.21594.177.camel@linux.vnet.ibm.com> Message-ID: <1497014192.21594.185.camel@linux.vnet.ibm.com> To: linux-security-module@vger.kernel.org List-Id: linux-security-module.vger.kernel.org On Fri, 2017-06-09 at 05:55 -0700, Kees Cook wrote: > On Fri, Jun 9, 2017 at 3:18 AM, Mimi Zohar wrote: > > On Thu, 2017-06-08 at 23:50 -0400, Matt Brown wrote: > >> >> > >> >> * Issues: > >> >> * Can be bypassed by interpreted languages such as python. You can run > >> >> malicious code by doing: python -c 'evil code' > >> > > >> > What's the recommendation for people interested in using TPE but > >> > having interpreters installed? > >> > > >> > >> If you don't need a given interpreter installed, uninstall it. While > >> this is common sense system hardening it especially would make a > >> difference under the TPE threat model. > >> > >> I don't have a knock down answer for this. Interpreters are a hard > >> problem for TPE. > > > > You might be interested in the minor LSM named "shebang", that I > > posted as a proof of concept back in January, which restricts the > > python interactive prompt/interpreter, but allows the scripts > > themselves to be executed. > > https://patchwork.kernel.org/patch/9547405/ > > Maybe these could be merged and the interpreter string could be made > into a configurable list? I updated shebang, but didn't bother to post it, as nobody seemed to be interested at the time. ?The updated version already has support for the configurable list. Re-posting ... Mimi -- To unsubscribe from this list: send the line "unsubscribe linux-security-module" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html