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Bug #44941
opentype=AVC msg=audit(1585577327.334:6406): avc: denied { open } for pid=27388 comm="unix_chkpwd" path="/etc/shadow" dev="sda1" ino=1014 scontext=system_u:system_r:ceph_t:s0 tcontext=system_u:object_r:shadow_t:s0 tclass=file permissive=1
Status:
New
Priority:
High
Assignee:
-
Category:
-
Target version:
-
% Done:
0%
Source:
Q/A
Tags:
Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):
Description
# sealert -l 64d60ebc-d1ca-48df-952f-50122738be35 SELinux is preventing /usr/sbin/unix_chkpwd from execute access on the file unix_chkpwd. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that unix_chkpwd should be allowed execute access on the unix_chkpwd file by default. Then you should report this as a bug. You can generate a local policy module to allow this access. Do allow this access for now by executing: # ausearch -c 'unix_chkpwd' --raw | audit2allow -M my-unixchkpwd # semodule -X 300 -i my-unixchkpwd.pp Additional Information: Source Context system_u:system_r:ceph_t:s0 Target Context system_u:object_r:chkpwd_exec_t:s0 Target Objects unix_chkpwd [ file ] Source unix_chkpwd Source Path /usr/sbin/unix_chkpwd Port <Unknown> Host smithi203 Source RPM Packages pam-1.3.1-4.el8.x86_64 Target RPM Packages Policy RPM selinux-policy-3.14.3-20.el8.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Permissive Host Name smithi203 Platform Linux smithi203 4.18.0-147.el8.x86_64 #1 SMP Wed Dec 4 21:51:45 UTC 2019 x86_64 x86_64 Alert Count 4 First Seen 2020-04-06 01:37:58 UTC Last Seen 2020-04-06 01:37:58 UTC Local ID 64d60ebc-d1ca-48df-952f-50122738be35 Raw Audit Messages type=AVC msg=audit(1586137078.894:3325): avc: denied { execute } for pid=18585 comm="sudo" name="unix_chkpwd" dev="sda1" ino=5192 scontext=system_u:system_r:ceph_t:s0 tcontext=system_u:object_r:chkpwd_exec_t:s0 tclass=file permissive= 1 type=AVC msg=audit(1586137078.894:3325): avc: denied { read open } for pid=18585 comm="sudo" path="/usr/sbin/unix_chkpwd" dev="sda1" ino=5192 scontext=system_u:system_r:ceph_t:s0 tcontext=system_u:object_r:chkpwd_exec_t:s0 tclass=file permissive=1 type=AVC msg=audit(1586137078.894:3325): avc: denied { execute_no_trans } for pid=18585 comm="sudo" path="/usr/sbin/unix_chkpwd" dev="sda1" ino=5192 scontext=system_u:system_r:ceph_t:s0 tcontext=system_u:object_r:chkpwd_exec_t:s0 tcla ss=file permissive=1 type=AVC msg=audit(1586137078.894:3325): avc: denied { map } for pid=18585 comm="unix_chkpwd" path="/usr/sbin/unix_chkpwd" dev="sda1" ino=5192 scontext=system_u:system_r:ceph_t:s0 tcontext=system_u:object_r:chkpwd_exec_t:s0 tclass=fil e permissive=1 type=SYSCALL msg=audit(1586137078.894:3325): arch=x86_64 syscall=execve success=yes exit=0 a0=7f1db152a74a a1=7ffffbc9a690 a2=7f1db172d028 a3=7ffffbc9a640 items=0 ppid=18582 pid=18585 auid=4294967295 uid=0 gid=167 euid=0 suid=0 fsuid=0 e gid=167 sgid=167 fsgid=167 tty=(none) ses=4294967295 comm=unix_chkpwd exe=/usr/sbin/unix_chkpwd subj=system_u:system_r:ceph_t:s0 key=(null) Hash: unix_chkpwd,ceph_t,chkpwd_exec_t,file,execute # ausearch -c 'sudo' --raw | audit2allow -M my-sudo && cat my-sudo.te ******************** IMPORTANT *********************** To make this policy package active, execute: semodule -i my-sudo.pp module my-sudo 1.0; require { type sudo_exec_t; type initrc_var_run_t; type ceph_t; class file { execute execute_no_trans lock map open read }; class capability { audit_write sys_resource }; class process setrlimit; class netlink_audit_socket { create nlmsg_relay }; } #============= ceph_t ============== allow ceph_t initrc_var_run_t:file { lock open read }; allow ceph_t self:capability { audit_write sys_resource }; allow ceph_t self:netlink_audit_socket { create nlmsg_relay }; allow ceph_t self:process setrlimit; #!!!! This avc can be allowed using the boolean 'domain_can_mmap_files' allow ceph_t sudo_exec_t:file map; allow ceph_t sudo_exec_t:file { execute execute_no_trans open read };
Updated by Brad Hubbard about 4 years ago
- Related to Bug #44946: type=AVC msg=audit(1585577327.335:6407): avc: denied { getattr } for pid=27388 comm="unix_chkpwd" path="/etc/shadow" dev="sda1" ino=1014 scontext=system_u:system_r:ceph_t:s0 tcontext=system_u:object_r:shadow_t:s0 tclass=file permissive=1 added
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