Special permission Exercises

[[Email protected] ~]# useradd stu[[email protected]~]#suStu[[email protected] root]$Cat/etc/ShadowCat:/etc/Shadow: Insufficient permissions [[email protected] root]$ Exitexit[[email protected]~]#Cat/etc/shadowroot:$1$HDJWFMDL $hfgaq.eq1pwrodjv7jqmn1:16330:0:99999:7::: Bin:*:16325:0:99999:7: ::d Aemon:*:16325:0:99999:7::: adm:*:16325:0:99999:7:::LP:*:16325:0:99999:7:::Sync:*:16325:0:99999:7:: : Shutdown:*:16325:0:99999:7:: : Halt:*:16325:0:99999:7:: : Mail:*:16325:0:99999:7:: : News:*:16325:0:99999:7:: : UUCP:*:16325:0:99999:7:: : operator:*:16325:0:99999:7:: : Games:*:16325:0:99999:7:: : Gopher:*:16325:0:99999:7:::FTP:*:16325:0:99999:7:: : Nobody:*:16325:0:99999:7:: : NSCD:!!:16325:0:99999:7:: : VCSA:!!:16325:0:99999:7::: RPC:!!:16325:0:99999:7:: : Mailnull:!!:16325:0:99999:7:: : Smmsp:!!:16325:0:99999:7: ::p Cap:!!:16325:0:99999:7: ::d bus:!!:16325:0:99999:7:: : Avahi:!!:16325:0:99999:7:: : sshd:!!:16325:0:99999:7:: : Rpcuser:!!:16325:0:99999:7:: : Nfsnobody:!!:16325:0:99999:7:: : Haldaemon:!!:16325:0:99999:7::: Avahi-autoipd:!!:16325:0:99999:7::: XFS:!!:16325:0:99999:7:: : Stu:!!:16357:0:99999:7::: [[email protected]~]#ls-l/etc/Shadow-R--------1Root root889 Ten- -  -: -/etc/Shadow[[email protected]~]# sl-l/usr/bin/passwd-Bash:sl:command not found[[email protected]~]#ls-l/usr/bin/passwd-rwsr-xr-x1Root root19904  -- on- -/usr/bin/passwd[[Email protected]~]#ls-l/usr/bin/Locate-rwx--s--x1Root Slocate22280  the- the-Geneva/usr/bin/Locate[[Email protected]~]# LL/tmp Total0[[Email protected]~]#ls-LD/TMPDRWXRWXRWT4Root root4096 Ten- -  -: $/Tmp[[email protected]~]# CD/Tmp[[email protected] tmp]#TouchTest[[email protected] tmp]# ll Total4-rw-r--r--1Root root0 Ten- -  +: +Test[[email protected] tmp]#chmod 777Test[[email protected] tmp]# ll Total4-rwxrwxrwx1Root root0 Ten- -  +: +Test[[email protected] tmp]#suStu[[email protected] tmp]$ ll Total4-rwxrwxrwx1Root root0 Ten- -  +: +Test[[email protected] tmp]$RMTestRM: Could not delete "test": Operation not allowed [[email protected] tmp]$ Exitexit[[email protected] tmp]# ll Total4-rwxrwxrwx1Root root0 Ten- -  +: +Test[[email protected] tmp]#RMTestRM: Do you want to delete the generic empty file "test"?Y[[email protected] tmp]# ll Total0[email protected] tmp]#suStu[[email protected] tmp]$TouchTest1[[email protected] tmp]$chmod 777Test1[[email protected] tmp]$ ll Total4-rwxrwxrwx1Stu Stu0 Ten- -  +: atTest1[[email protected] tmp]$ exitexit[[email protected] tmp]# useradd stu2[[email protected] tmp]#suStu2[[email protected] tmp]$ ll Total4-rwxrwxrwx1Stu Stu0 Ten- -  +: atTest1[[email protected] tmp]$RMtest1RM: Unable to delete "Test1": Operation not allowed [[email protected] tmp]$ Exitexit[[email protected] tmp]# ll Total4-rwxrwxrwx1Stu Stu0 Ten- -  +: atTest1[[email protected] tmp]#RMtest1RM: Do you want to delete the generic empty file "Test1"?Y[[email protected] tmp]# ll Total0[email protected] tmp]# umask0022[email protected] tmp]#TouchTest[[email protected] tmp]# ll Total4-rw-r--r--1Root root0 Ten- -  +: -Test[[email protected] tmp]#chmod 4755test;ll Test-rwsr-xr-x1Root root0 Ten- -  +: -Test[[email protected] tmp]#chmod 6755test;ll Test-rwsr-sr-x1Root root0 Ten- -  +: -Test[[email protected] tmp]#chmod 1755test;ll Test-rwxr-xr-t1Root root0 Ten- -  +: -Test[[email protected] tmp]#chmod 7666test;ll Test-rwsrwsrwt1Root root0 Ten- -  +: -Test[[email protected] tmp]#

Special permission Exercises