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Bug 2158779 - [RHEL8.6/Insights/SELinux/Bug] SELinux AVC with SAPHostAgent with selinux-policy-3.14.3-95.el8_6.5
Summary: [RHEL8.6/Insights/SELinux/Bug] SELinux AVC with SAPHostAgent with selinux-pol...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: selinux-policy
Version: 8.6
Hardware: x86_64
OS: Linux
high
medium
Target Milestone: rc
: 8.8
Assignee: Zdenek Pytela
QA Contact: Milos Malik
Mirek Jahoda
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2023-01-06 14:46 UTC by Rajesh Dulhani
Modified: 2023-05-16 11:03 UTC (History)
6 users (show)

Fixed In Version: selinux-policy-3.14.3-114.el8
Doc Type: No Doc Update
Doc Text:
Clone Of:
Environment:
Last Closed: 2023-05-16 09:04:49 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHELPLAN-144122 0 None None None 2023-01-06 15:02:38 UTC
Red Hat Product Errata RHBA-2023:2965 0 None None None 2023-05-16 09:04:57 UTC

Description Rajesh Dulhani 2023-01-06 14:46:19 UTC 
Description of problem:


AVCs not caught by the latest SELinux policy in RHEL8.6 related to SAP


Version-Release number of selected component (if applicable):

selinux-policy-3.14.3-95.el8_6.5.noarch


How reproducible:

~~~
+ sudo ausearch -i -m avc,user_avc -ts today
----
type=PROCTITLE msg=audit(12/30/2022 10:44:00.558:46859) : proctitle=/usr/sap/hostctrl/exe/saphostctrl -function GetCIMObject -enuminstances SAPInstance
type=PATH msg=audit(12/30/2022 10:44:00.558:46859) : item=0 name=/tmp/.sapstream1128 inode=153 dev=fd:01 mode=socket,700 ouid=sapadm ogid=sapsys rdev=00:00 obj=system_u:object_r:tmp_t:s0 nametype=NORMAL cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0
type=CWD msg=audit(12/30/2022 10:44:00.558:46859) : cwd=/
type=SOCKADDR msg=audit(12/30/2022 10:44:00.558:46859) : saddr={ saddr_fam=local path=/tmp/.sapstream1128 }
type=SYSCALL msg=audit(12/30/2022 10:44:00.558:46859) : arch=x86_64 syscall=connect success=yes exit=0 a0=0x3 a1=0x7ffc91daf370 a2=0x15 a3=0xf items=1 ppid=90343 pid=90344 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=saphostctrl exe=/usr/sap/hostctrl/exe/saphostctrl subj=system_u:system_r:insights_client_t:s0 key=(null)
type=AVC msg=audit(12/30/2022 10:44:00.558:46859) : avc:  denied  { write } for  pid=90344 comm=saphostctrl name=.sapstream1128 dev="dm-1" ino=153 scontext=system_u:system_r:insights_client_t:s0 tcontext=system_u:object_r:tmp_t:s0 tclass=sock_file permissive=1
----
type=PROCTITLE msg=audit(12/30/2022 10:45:38.650:46891) : proctitle=/usr/sap/hostctrl/exe/saphostexec -status
type=OBJ_PID msg=audit(12/30/2022 10:45:38.650:46891) : opid=3406 oauid=unset ouid=sapadm oses=-1 obj=system_u:system_r:unconfined_service_t:s0 ocomm=sapstartsrv
type=SYSCALL msg=audit(12/30/2022 10:45:38.650:46891) : arch=x86_64 syscall=kill success=yes exit=0 a0=0xd4e a1=SIG0 a2=0x0 a3=0xf items=0 ppid=91486 pid=91487 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=saphostexec exe=/usr/sap/hostctrl/exe/saphostexec subj=system_u:system_r:insights_client_t:s0 key=(null)
type=AVC msg=audit(12/30/2022 10:45:38.650:46891) : avc:  denied  { kill } for  pid=91487 comm=saphostexec capability=kill  scontext=system_u:system_r:insights_client_t:s0 tcontext=system_u:system_r:insights_client_t:s0 tclass=capability permissive=1
----
type=PROCTITLE msg=audit(12/30/2022 10:45:38.753:46892) : proctitle=/usr/sap/hostctrl/exe/saposcol -s pf=/usr/sap/hostctrl/exe/host_profile
type=PATH msg=audit(12/30/2022 10:45:38.753:46892) : item=1 name=/usr/sap/tmp/88410676 inode=149 dev=fd:07 mode=file,755 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:usr_t:s0 nametype=CREATE cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0
type=PATH msg=audit(12/30/2022 10:45:38.753:46892) : item=0 name=/usr/sap/tmp/ inode=146 dev=fd:07 mode=dir,775 ouid=root ogid=sapsys rdev=00:00 obj=system_u:object_r:usr_t:s0 nametype=PARENT cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0
type=CWD msg=audit(12/30/2022 10:45:38.753:46892) : cwd=/
type=SYSCALL msg=audit(12/30/2022 10:45:38.753:46892) : arch=x86_64 syscall=openat success=yes exit=3 a0=AT_FDCWD a1=0x1d46d00 a2=O_RDWR|O_CREAT|O_EXCL|O_TRUNC a3=0x1ff items=2 ppid=91487 pid=91490 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=saposcol exe=/usr/sap/hostctrl/exe/saposcol subj=system_u:system_r:insights_client_t:s0 key=(null)
type=AVC msg=audit(12/30/2022 10:45:38.753:46892) : avc:  denied  { write } for  pid=91490 comm=saposcol path=/usr/sap/tmp/88410676 dev="dm-7" ino=149 scontext=system_u:system_r:insights_client_t:s0 tcontext=system_u:object_r:usr_t:s0 tclass=file permissive=1
type=AVC msg=audit(12/30/2022 10:45:38.753:46892) : avc:  denied  { create } for  pid=91490 comm=saposcol name=88410676 scontext=system_u:system_r:insights_client_t:s0 tcontext=system_u:object_r:usr_t:s0 tclass=file permissive=1
type=AVC msg=audit(12/30/2022 10:45:38.753:46892) : avc:  denied  { add_name } for  pid=91490 comm=saposcol name=88410676 scontext=system_u:system_r:insights_client_t:s0 tcontext=system_u:object_r:usr_t:s0 tclass=dir permissive=1
type=AVC msg=audit(12/30/2022 10:45:38.753:46892) : avc:  denied  { write } for  pid=91490 comm=saposcol name=tmp dev="dm-7" ino=146 scontext=system_u:system_r:insights_client_t:s0 tcontext=system_u:object_r:usr_t:s0 tclass=dir permissive=1
----
type=PROCTITLE msg=audit(12/30/2022 10:45:38.753:46893) : proctitle=/usr/sap/hostctrl/exe/saposcol -s pf=/usr/sap/hostctrl/exe/host_profile
type=PATH msg=audit(12/30/2022 10:45:38.753:46893) : item=1 name=/usr/sap/tmp/88410676 inode=149 dev=fd:07 mode=file,755 ouid=root ogid=root rdev=00:00 obj=system_u:object_r:usr_t:s0 nametype=DELETE cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0
type=PATH msg=audit(12/30/2022 10:45:38.753:46893) : item=0 name=/usr/sap/tmp/ inode=146 dev=fd:07 mode=dir,775 ouid=root ogid=sapsys rdev=00:00 obj=system_u:object_r:usr_t:s0 nametype=PARENT cap_fp=none cap_fi=none cap_fe=0 cap_fver=0 cap_frootid=0
type=CWD msg=audit(12/30/2022 10:45:38.753:46893) : cwd=/
type=SYSCALL msg=audit(12/30/2022 10:45:38.753:46893) : arch=x86_64 syscall=unlink success=yes exit=0 a0=0x1d46d00 a1=0x1d46d00 a2=0x2c2 a3=0x9 items=2 ppid=91487 pid=91490 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=saposcol exe=/usr/sap/hostctrl/exe/saposcol subj=system_u:system_r:insights_client_t:s0 key=(null)
type=AVC msg=audit(12/30/2022 10:45:38.753:46893) : avc:  denied  { unlink } for  pid=91490 comm=saposcol name=88410676 dev="dm-7" ino=149 scontext=system_u:system_r:insights_client_t:s0 tcontext=system_u:object_r:usr_t:s0 tclass=file permissive=1
type=AVC msg=audit(12/30/2022 10:45:38.753:46893) : avc:  denied  { remove_name } for  pid=91490 comm=saposcol name=88410676 dev="dm-7" ino=149 scontext=system_u:system_r:insights_client_t:s0 tcontext=system_u:object_r:usr_t:s0 tclass=dir permissive=1
----
type=PROCTITLE msg=audit(12/30/2022 10:45:38.753:46894) : proctitle=/usr/sap/hostctrl/exe/saposcol -s pf=/usr/sap/hostctrl/exe/host_profile
type=IPC msg=audit(12/30/2022 10:45:38.753:46894) : ouid=root ogid=sapsys mode=000,770 obj=system_u:system_r:unconfined_service_t:s0
type=SYSCALL msg=audit(12/30/2022 10:45:38.753:46894) : arch=x86_64 syscall=shmget success=yes exit=8 a0=0x4dbe a1=0x0 a2=0770 a3=0x0 items=0 ppid=91487 pid=91490 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=saposcol exe=/usr/sap/hostctrl/exe/saposcol subj=system_u:system_r:insights_client_t:s0 key=(null)
type=AVC msg=audit(12/30/2022 10:45:38.753:46894) : avc:  denied  { associate } for  pid=91490 comm=saposcol key=\031▒   scontext=system_u:system_r:insights_client_t:s0 tcontext=system_u:system_r:unconfined_service_t:s0 tclass=shm permissive=1
type=AVC msg=audit(12/30/2022 10:45:38.753:46894) : avc:  denied  { unix_read unix_write } for  pid=91490 comm=saposcol key=\031▒   scontext=system_u:system_r:insights_client_t:s0 tcontext=system_u:system_r:unconfined_service_t:s0 tclass=shm permissive=1
----
type=PROCTITLE msg=audit(12/30/2022 10:45:38.754:46895) : proctitle=/usr/sap/hostctrl/exe/saposcol -s pf=/usr/sap/hostctrl/exe/host_profile
type=IPC msg=audit(12/30/2022 10:45:38.754:46895) : ouid=root ogid=sapsys mode=000,770 obj=system_u:system_r:unconfined_service_t:s0
type=SYSCALL msg=audit(12/30/2022 10:45:38.754:46895) : arch=x86_64 syscall=shmat success=yes exit=140317372096512 a0=0x8 a1=0x0 a2=0x2000 a3=0x9 items=0 ppid=91487 pid=91490 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=saposcol exe=/usr/sap/hostctrl/exe/saposcol subj=system_u:system_r:insights_client_t:s0 key=(null)
type=AVC msg=audit(12/30/2022 10:45:38.754:46895) : avc:  denied  { read write } for  pid=91490 comm=saposcol key=\031▒   scontext=system_u:system_r:insights_client_t:s0 tcontext=system_u:system_r:unconfined_service_t:s0 tclass=shm permissive=1
----
type=PROCTITLE msg=audit(12/30/2022 10:45:38.754:46896) : proctitle=/usr/sap/hostctrl/exe/saposcol -s pf=/usr/sap/hostctrl/exe/host_profile
type=IPC msg=audit(12/30/2022 10:45:38.754:46896) : ouid=root ogid=sapsys mode=000,770 obj=system_u:system_r:unconfined_service_t:s0
type=SYSCALL msg=audit(12/30/2022 10:45:38.754:46896) : arch=x86_64 syscall=shmctl success=yes exit=0 a0=0x8 a1=0x2 a2=0x7fffcbcd16e0 a3=0x9 items=0 ppid=91487 pid=91490 auid=unset uid=root gid=root euid=root suid=root fsuid=root egid=root sgid=root fsgid=root tty=(none) ses=unset comm=saposcol exe=/usr/sap/hostctrl/exe/saposcol subj=system_u:system_r:insights_client_t:s0 key=(null)
type=AVC msg=audit(12/30/2022 10:45:38.754:46896) : avc:  denied  { getattr } for  pid=91490 comm=saposcol key=\031▒   scontext=system_u:system_r:insights_client_t:s0 tcontext=system_u:system_r:unconfined_service_t:s0 tclass=shm permissive=1

+ sudo audit2allow -a
#============= insights_client_t ==============
allow insights_client_t tmp_t:sock_file write;
allow insights_client_t unconfined_service_t:shm { associate getattr read unix_read unix_write write };
allow insights_client_t usr_t:dir { add_name remove_name write };
allow insights_client_t usr_t:file { create unlink write };
~~~

A quick check using sesearch on RHEL8.7 shows that also the RHEL8.7 (selinux-policy-3.14.3-108) still is lacking these rules. But as SAP requires a EUS release, a fix can wait for RHEL8.8(-EUS)
Comment 8 errata-xmlrpc 2023-05-16 09:04:49 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (selinux-policy bug fix and enhancement update), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2023:2965
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