Attention
Security Hardening
EWAOL distribution images can be hardened to reduce potential sources or attack vectors of security vulnerabilities, by enabling the security features implemented by Project Cassini. This security hardening modifies the distribution to:
Force password update for each user account after first logging in. An empty and expired password is set for each user account by default.
Enhance the kernel security, kernel configuration is extended with the
security.scc
inKERNEL_FEATURES
.Enable the ‘Secure Computing Mode’ (seccomp) Linux kernel feature by appending
seccomp
toDISTRO_FEATURES
.Ensure that all available packages from
meta-openembedded
,meta-virtualization
andpoky
layers are configured with:--with-libcap[-ng]
.Remove
debug-tweaks
fromIMAGE_FEATURES
.Disable all login access to the
root
account.Sets the umask to
0027
(which translates permissions as640
for files and750
for directories).
Security hardening is not enabled by default, see Security Hardening for details on including the security hardening on the EWAOL distribution image.
EWAOL security hardening does not reduce the scope of the Run-Time Integration Tests.