Bug 2093453
| Summary: | SELinux prevents the fedora-third-party process from reading the /etc/passwd file | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Milos Malik <mmalik> |
| Component: | selinux-policy | Assignee: | Zdenek Pytela <zpytela> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Milos Malik <mmalik> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 37 | CC: | dwalsh, grepl.miroslav, lvrabec, mmalik, omosnace, pkoncity, vmojzis, zpytela |
| Target Milestone: | --- | Keywords: | Triaged |
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2022-08-18 09:12:26 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Actual results (permissive mode):
----
type=PROCTITLE msg=audit(06/03/2022 14:31:15.869:662) : proctitle=/usr/bin/python3 /usr/bin/fedora-third-party refresh
type=PATH msg=audit(06/03/2022 14:31:15.869:662) : item=0 name=/etc/passwd inode=190912 dev=fc:01 mode=file,644 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:passwd_file_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0
type=CWD msg=audit(06/03/2022 14:31:15.869:662) : cwd=/
type=SYSCALL msg=audit(06/03/2022 14:31:15.869:662) : arch=x86_64 syscall=openat success=yes exit=3 a0=AT_FDCWD a1=0x7f4b11bbdcc4 a2=O_RDONLY|O_CLOEXEC a3=0x0 items=1 ppid=1 pid=20731 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=fedora-third-pa exe=/usr/bin/python3.10 subj=system_u:system_r:fedoratp_t:s0 key=(null)
type=AVC msg=audit(06/03/2022 14:31:15.869:662) : avc: denied { open } for pid=20731 comm=fedora-third-pa path=/etc/passwd dev="vda1" ino=190912 scontext=system_u:system_r:fedoratp_t:s0 tcontext=system_u:object_r:passwd_file_t:s0 tclass=file permissive=1
type=AVC msg=audit(06/03/2022 14:31:15.869:662) : avc: denied { read } for pid=20731 comm=fedora-third-pa name=passwd dev="vda1" ino=190912 scontext=system_u:system_r:fedoratp_t:s0 tcontext=system_u:object_r:passwd_file_t:s0 tclass=file permissive=1
----
type=PROCTITLE msg=audit(06/03/2022 14:31:15.871:663) : proctitle=/usr/bin/python3 /usr/bin/fedora-third-party refresh
type=PATH msg=audit(06/03/2022 14:31:15.871:663) : item=0 name= inode=190912 dev=fc:01 mode=file,644 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:passwd_file_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0
type=CWD msg=audit(06/03/2022 14:31:15.871:663) : cwd=/
type=SYSCALL msg=audit(06/03/2022 14:31:15.871:663) : arch=x86_64 syscall=newfstatat success=yes exit=0 a0=0x3 a1=0x7f4b11bb9f2e a2=0x7fff04131840 a3=0x1000 items=1 ppid=1 pid=20731 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=fedora-third-pa exe=/usr/bin/python3.10 subj=system_u:system_r:fedoratp_t:s0 key=(null)
type=AVC msg=audit(06/03/2022 14:31:15.871:663) : avc: denied { getattr } for pid=20731 comm=fedora-third-pa path=/etc/passwd dev="vda1" ino=190912 scontext=system_u:system_r:fedoratp_t:s0 tcontext=system_u:object_r:passwd_file_t:s0 tclass=file permissive=1
----
# semodule -lfull | grep fedora
100 fedoratp pp
#
This bug appears to have been reported against 'rawhide' during the Fedora Linux 37 development cycle. Changing version to 37. |
Description of problem: * the service starts successfully and does NOT produce any error messages Version-Release number of selected component (if applicable): fedora-third-party-0.10-1.fc37.noarch selinux-policy-37.3-1.fc37.noarch selinux-policy-targeted-37.3-1.fc37.noarch How reproducible: * always Steps to Reproduce: 1. get a Fedora Rawhide machine (targeted policy is active) 2. touch /run/ostree-booted 3. (re)start the fedora-third-party-refresh service 4. search for SELinux denials Actual results (enforcing mode): ---- type=PROCTITLE msg=audit(06/03/2022 13:53:22.660:605) : proctitle=/usr/bin/python3 /usr/bin/fedora-third-party refresh type=PATH msg=audit(06/03/2022 13:53:22.660:605) : item=0 name=/etc/passwd inode=190912 dev=fc:01 mode=file,644 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:passwd_file_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0 type=CWD msg=audit(06/03/2022 13:53:22.660:605) : cwd=/ type=SYSCALL msg=audit(06/03/2022 13:53:22.660:605) : arch=x86_64 syscall=openat success=no exit=EACCES(Permission denied) a0=AT_FDCWD a1=0x7f90da3bdcc4 a2=O_RDONLY|O_CLOEXEC a3=0x0 items=1 ppid=1 pid=1878 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=fedora-third-pa exe=/usr/bin/python3.10 subj=system_u:system_r:fedoratp_t:s0 key=(null) type=AVC msg=audit(06/03/2022 13:53:22.660:605) : avc: denied { read } for pid=1878 comm=fedora-third-pa name=passwd dev="vda1" ino=190912 scontext=system_u:system_r:fedoratp_t:s0 tcontext=system_u:object_r:passwd_file_t:s0 tclass=file permissive=0 ---- Expected results: * no SELinux denials