Linux distributions
TMA-ROCKY9-6.1.2.4
Ensure access to rsyslog configuration files is configured
Description
The main rsyslog configuration file /etc/rsyslog.conf and the drop-in configuration files ending in .conf under /etc/rsyslog.d/ control how rsyslog collects, filters, stores, and forwards system log data. These files should be owned by root, group-owned by root, and no more permissive than mode 0640, so that they can be modified only by root and are not readable by any account other than root.
How it is checked
Audit method: Shell command
alt0() { command -v find >/dev/null 2>&1 || { echo "step1: find not installed"; return 1; }; o=$(bash -c 'find /etc/rsyslog.conf -not -type l \( ! -user root -o ! -group root -o - perm /0137 \) 2>/dev/null' 2>/dev/null); [ -z "$o" ] || { echo "step1: $o" | head -c 300; return 1; }; command -v find >/dev/null 2>&1 || { echo "step2: find not installed"; return 1; }; o=$(bash -c 'find /etc/rsyslog.d/ -type f -name '"'"'*.conf'"'"' \( ! -user root -o ! -group root -o -perm /0137 \) 2>/dev/null' 2>/dev/null); [ -z "$o" ] || { echo "step2: $o" | head -c 300; return 1; }; }; if alt0; then echo compliant; fi- Expected output
compliant
How it is fixed
Fix method: Guidance or infrastructure patch
Run the following commands to set ownership to root:root and remove group write, all access for other accounts, and all execute bits from the rsyslog configuration files, resulting in mode 0640 or more restrictive: # chown root:root /etc/rsyslog.conf # chmod u-x,g-wx,o-rwx /etc/rsyslog.conf # find /etc/rsyslog.d/ -type f -name '*.conf' -exec chown root:root {} + # find /etc/rsyslog.d/ -type f -name '*.conf' -exec chmod u-x,g-wx,o-rwx {} +
Properties
- Operating systems
- rocky-9
- Tags
- cis-convertedlinux
- Reference
- CIS Rocky Linux 9 Benchmark v3.0.0 - 6.1.2.4
Check this host
Run this on a machine you are allowed to audit. The scan is read-only.
tmaegis scan --target linux