[PATCH 2/5 - v2] grant permission for rpm to write to audit log

[PATCH 2/5 - v2] grant permission for rpm to write to audit log

[Sugar, David]

Messages like this are added to the audit log when an rpm is installed:
type=SOFTWARE_UPDATE msg=audit(1560913896.581:244): pid=1265 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:rpm_t:s0 msg='sw="ntpdate-4.2.6p5-25.el7_3.2.x86_64" sw_type=rpm key_enforce=0 gpg_res=0 root_dir="/" comm="rpm" exe="/usr/bin/rpm" hostname=? addr=?  terminal=? res=success'

These are the denials that I'm seeing:
type=AVC msg=audit(1560913896.581:243): avc:  denied  { audit_write } for  pid=1265 comm="rpm" capability=29 scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=capability permissive=1

type=AVC msg=audit(1561298132.446:240): avc:  denied  { create } for pid=1266 comm="rpm" scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=netlink_audit_socket permissive=1
type=AVC msg=audit(1561298132.446:241): avc:  denied  { write } for pid=1266 comm="rpm" scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=netlink_audit_socket permissive=1
type=AVC msg=audit(1561298132.446:241): avc:  denied  { nlmsg_relay } for  pid=1266 comm="rpm" scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=netlink_audit_socket permissive=1
type=AVC msg=audit(1561298132.447:243): avc:  denied  { read } for pid=1266 comm="rpm" scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=netlink_audit_socket permissive=1

v2 - Use interface rather than adding permissions here - this change may
confuse subsequent patches in this set, if so let me know and I will
submit a pull request on github.

Signed-off-by: Dave Sugar <dsugar@tresys.com>
---
 policy/modules/admin/rpm.te | 1 +
 1 file changed, 1 insertion(+)

diff --git a/policy/modules/admin/rpm.te b/policy/modules/admin/rpm.te
index 0e6e9c03..ba022247 100644
--- a/policy/modules/admin/rpm.te
+++ b/policy/modules/admin/rpm.te
@@ -204,6 +204,7 @@ libs_exec_ld_so(rpm_t)
 libs_exec_lib_files(rpm_t)
 libs_run_ldconfig(rpm_t, rpm_roles)
 
+logging_send_audit_msgs(rpm_t)
 logging_send_syslog_msg(rpm_t)
 
 seutil_manage_src_policy(rpm_t)
-- 
2.21.0

Re: [PATCH 2/5 - v2] grant permission for rpm to write to audit log

[Chris PeBenito]

On 7/2/19 1:59 PM, Sugar, David wrote:
> Messages like this are added to the audit log when an rpm is installed:
> type=SOFTWARE_UPDATE msg=audit(1560913896.581:244): pid=1265 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:rpm_t:s0 msg='sw="ntpdate-4.2.6p5-25.el7_3.2.x86_64" sw_type=rpm key_enforce=0 gpg_res=0 root_dir="/" comm="rpm" exe="/usr/bin/rpm" hostname=? addr=?  terminal=? res=success'
> 
> These are the denials that I'm seeing:
> type=AVC msg=audit(1560913896.581:243): avc:  denied  { audit_write } for  pid=1265 comm="rpm" capability=29 scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=capability permissive=1
> 
> type=AVC msg=audit(1561298132.446:240): avc:  denied  { create } for pid=1266 comm="rpm" scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=netlink_audit_socket permissive=1
> type=AVC msg=audit(1561298132.446:241): avc:  denied  { write } for pid=1266 comm="rpm" scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=netlink_audit_socket permissive=1
> type=AVC msg=audit(1561298132.446:241): avc:  denied  { nlmsg_relay } for  pid=1266 comm="rpm" scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=netlink_audit_socket permissive=1
> type=AVC msg=audit(1561298132.447:243): avc:  denied  { read } for pid=1266 comm="rpm" scontext=system_u:system_r:rpm_t:s0 tcontext=system_u:system_r:rpm_t:s0 tclass=netlink_audit_socket permissive=1
> 
> v2 - Use interface rather than adding permissions here - this change may
> confuse subsequent patches in this set, if so let me know and I will
> submit a pull request on github.
> 
> Signed-off-by: Dave Sugar <dsugar@tresys.com>
> ---
>   policy/modules/admin/rpm.te | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/policy/modules/admin/rpm.te b/policy/modules/admin/rpm.te
> index 0e6e9c03..ba022247 100644
> --- a/policy/modules/admin/rpm.te
> +++ b/policy/modules/admin/rpm.te
> @@ -204,6 +204,7 @@ libs_exec_ld_so(rpm_t)
>   libs_exec_lib_files(rpm_t)
>   libs_run_ldconfig(rpm_t, rpm_roles)
>   
> +logging_send_audit_msgs(rpm_t)
>   logging_send_syslog_msg(rpm_t)
>   
>   seutil_manage_src_policy(rpm_t)

Merged.

-- 
Chris PeBenito