STIGQter STIGQter: STIG Summary: Red Hat Enterprise Linux 7 Security Technical Implementation Guide Version: 2 Release: 6 Benchmark Date: 24 Jan 2020: The Red Hat Enterprise Linux operating system must audit all uses of the fchownat syscall.

DISA Rule

SV-86727r5_rule

Vulnerability Number

V-72103

Group Title

SRG-OS-000064-GPOS-00033

Rule Version

RHEL-07-030400

Severity

CAT II

CCI(s)

Weight

10

Fix Recommendation

Add or update the following rules in "/etc/audit/rules.d/audit.rules":

-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=4294967295 -k perm_mod

-a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=4294967295 -k perm_mod

The audit daemon must be restarted for the changes to take effect.

Check Contents

Verify the operating system generates audit records when successful/unsuccessful attempts to use the "fchownat" syscall occur.

Check the file system rules in "/etc/audit/audit.rules" with the following commands:

# grep -iw fchownat /etc/audit/audit.rules

-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=4294967295 -k perm_mod

-a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=4294967295 -k perm_mod

If both the "b32" and "b64" audit rules are not defined for the "fchownat" syscall, this is a finding.

Vulnerability Number

V-72103

Documentable

False

Rule Version

RHEL-07-030400

Severity Override Guidance

Verify the operating system generates audit records when successful/unsuccessful attempts to use the "fchownat" syscall occur.

Check the file system rules in "/etc/audit/audit.rules" with the following commands:

# grep -iw fchownat /etc/audit/audit.rules

-a always,exit -F arch=b32 -S fchownat -F auid>=1000 -F auid!=4294967295 -k perm_mod

-a always,exit -F arch=b64 -S fchownat -F auid>=1000 -F auid!=4294967295 -k perm_mod

If both the "b32" and "b64" audit rules are not defined for the "fchownat" syscall, this is a finding.

Check Content Reference

M

Target Key

2777

Comments