Linux distributions
TMA-RHEL9-7.1.11
Ensure world writable files and directories are secured
Opis
World writable files are the least secure. Data in world-writable files can be modified and compromised by any user on the system. World writable files may also indicate an incorrectly written script or program that could potentially be the cause of a larger compromise to the system's integrity. See the chmod(2) man page for more information. Setting the sticky bit on world writable directories prevents users from deleting or renaming files in that directory that are not owned by them.
Kako se proverava
Metod provere: Komanda ljuske
alt0() { o=$(bash -c '#!/usr/bin/env bash
{
a_path=(-path "*/containers/storage/*" -o -path "*/containerd/*" -o -path "*/kubelet/*" -o -path "*/docker/*" -o -path "/sys/*" -o -path "/snap/*" -o - path "/boot/efi/*")
while IFS= read -r l_mount; do
find "$l_mount" -mount -xdev \( "${a_path[@]}" \) -prune -o \
\( \( -type f -perm -0002 \) -o \( -type d -perm -0002 ! -perm -1000 \) \) \
-printf '"'"'%y %p\n'"'"' 2>/dev/null
done < <(findmnt -Dkerno fstype,target | awk '"'"'($1 !~ /^[[:space:]]*(nfs|proc|cifs|smb|vfat|iso9660|efivarfs|selinuxfs|ncpfs)/ && $2 !~ /^(\/run|\/tmp|\/var\/tmp)(\/|$)/){print $2}'"'"')
}' 2>&1); [ -z "$o" ] || { echo "step1: $o" | head -c 300; return 1; }; }; if alt0; then echo compliant; fi- Očekivani izlaz
compliant
Kako se ispravlja
Metod ispravke: Smernica ili zakrpa infrastrukture
• World Writable Files: o It is recommended that write access is removed from other with the command ( chmod o-w <filename> ), but always consult relevant vendor documentation to avoid breaking any application dependencies on a given file. • World Writable Directories: o Set the sticky bit on all world writable directories with the command ( chmod a+t <directory_name> ) Run the following script to: • Remove other write permission from any world writable files • Add the sticky bit to all world writable directories #!/usr/bin/env bash { l_smask='01000' a_file=() a_dir=() a_path=(-path "*/containers/storage/*" -o -path "*/containerd/*" -o -path "*/kubelet/*" -o -path "*/docker/*" -o -path "/sys…
Svojstva
- Operativni sistemi
- rhel-9
- Oznake
- cis-convertedlinux
- Referenca
- CIS Red Hat Enterprise Linux 9 Benchmark v3.0.0 - 7.1.11
Proverite ovaj računar
Pokrenite ovo na računaru za koji imate dozvolu za proveru. Skeniranje radi u režimu samo za čitanje.
tmaegis scan --target linux