Identify whether the kernel version supports Path based exclusion
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Hello All,
I need a method to identify whether the audid version a kernel is running
supports path based exclusions.
One option would be to use audit_add_rule_data to add a temporary path
based rule and check if it is successful, but this won't work when auditd
is running in immutable mode.
Any other way which does not require checking versions of Kernel or
Distribution?
--
Anurag Aggarwal
Attachments:
- attachment.html (text/html — 625 bytes)
On 1/10/2023 4:08 AM, Anurag Aggarwal wrote:
Hello All,
I need a method to identify whether the audid version a kernel is
running supports path based exclusions.
% cat /sys/kernel/security/lsm
This will tell you what security modules are in use. Check whether
any of the modules that use path based controls (AppArmor, TOMOYO)
are in the list.
One option would be to use audit_add_rule_data to add a temporary path
based rule and check if it is successful, but this won't work when
auditd is running in immutable mode.
Any other way which does not require checking versions of Kernel or
Distribution?
--
Anurag Aggarwal
--
Linux-audit mailing list
Linux-audit(a)redhat.com
https://listman.redhat.com/mailman/listinfo/linux-audit
Hello,
On Tuesday, January 10, 2023 7:08:12 AM EST Anurag Aggarwal wrote:
I need a method to identify whether the audid version a kernel is
running
supports path based exclusions.
It's not dependant on auditd. The kernel itself decides if a rule is valid.
One option would be to use audit_add_rule_data to add a temporary
path
based rule and check if it is successful, but this won't work when auditd
is running in immutable mode.
Any other way which does not require checking versions of Kernel or
Distribution?
If you are looking to see if this is supported
-a always,exclude -F exec=/usr/bin/ls
then it can be detected by:
uint32_t features = audit_get_features();
if ((features & AUDIT_FEATURE_BITMAP_EXCLUDE_EXTEND) == 0)
puts("not supported");
else
puts("supported");
-Steve
712
days inactive
712
days old
linux-audit@lists.linux-audit.osci.io
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Anurag Aggarwal -
Casey Schaufler -
Steve Grubb