> On Jan. 18, 2019, 8:36 a.m., Jiang Yan Xu wrote: > > src/slave/flags.cpp > > Lines 338 (patched) > > <https://reviews.apache.org/r/69615/diff/2/?file=2117175#file2117175line338> > > > > If disallow is the default, it's a breaking change right? Can the > > default be allowing it?
Strictly it is a breaking change. In practice, I don't think there's a reasonable workflow that would depend on this. Even Mesos developers tend not to need to attach a debugger to the containerizers. And IMHO we should deliver security improvements by default unless there is a compelling reason not to. - James ----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: https://reviews.apache.org/r/69615/#review211839 ----------------------------------------------------------- On Feb. 8, 2019, 9:09 p.m., James Peach wrote: > > ----------------------------------------------------------- > This is an automatically generated e-mail. To reply, visit: > https://reviews.apache.org/r/69615/ > ----------------------------------------------------------- > > (Updated Feb. 8, 2019, 9:09 p.m.) > > > Review request for mesos, Xudong Ni, Gilbert Song, Jie Yu, and Jiang Yan Xu. > > > Bugs: MESOS-9349 > https://issues.apache.org/jira/browse/MESOS-9349 > > > Repository: mesos > > > Description > ------- > > Use `prctl(PR_SET_DUMPABLE)` to disable the ability to attach to > the containerizer process(es) on Linux systems. This prevents > unprivileged containerized processes from reading information > about the containerizer process(es) from `/proc`. This gives an > additional layer of protection against leaking information to > untrusted container processes. > > > Diffs > ----- > > docs/configuration/agent.md a4015c409d00a4c117df6c869d5ba5072bcfe58e > src/launcher/default_executor.cpp 5837cfa4deba557cae43112092ff24b97137951f > src/launcher/executor.cpp f962e800f23d5582b1bc04a263253893492a5054 > src/slave/containerizer/mesos/containerizer.cpp > 35f51ad33da53b3e6a8eec275fbf3e77782b0fba > src/slave/containerizer/mesos/launch.hpp > 0a6394d56321948ad760ac69c05456319a254842 > src/slave/containerizer/mesos/launch.cpp > 7f401cdf481123b8c6cc500ac02bb7daf2613d2c > src/slave/flags.hpp 7346ba5b711a8353a4bc1d7dcd2f6184b777ddd0 > src/slave/flags.cpp 066b84f528b4c888dde399e0b5d5fe5531934de6 > src/slave/slave.cpp 0182dd2ca326723e96eef8c072696ad3c873de0b > src/tests/containerizer/mesos_containerizer_tests.cpp > 449928c10b897061642af8ad267f8b70695940e6 > src/tests/slave_tests.cpp 22a0295086ae4f4ec26df00a0e077eecfa27f1fb > > > Diff: https://reviews.apache.org/r/69615/diff/3/ > > > Testing > ------- > > make check (Fedora 29) > > > Thanks, > > James Peach > >
