Bug 182071
| Summary: | ping not allowed to use nscd | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Ulrich Drepper <drepper> |
| Component: | selinux-policy | Assignee: | Daniel Walsh <dwalsh> |
| Status: | CLOSED RAWHIDE | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | rawhide | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2006-05-09 19:15:06 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
I pasted the wrong audit message:
type=AVC msg=audit(1140416531.597:35201): avc: denied { name_connect } for
pid=25810 comm="ping" dest=111 scontext=user_u:system_r:ping_t:s0-s0:c0.c255
tcontext=system_u:object_r:portmap_port_t:s0 tclass=tcp_socket
type=SYSCALL msg=audit(1140416531.597:35201): arch=c000003e syscall=42
success=no exit=-13 a0=4 a1=7fffffd87b00 a2=10 a3=3 items=0 pid=25810
auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0
comm="ping" exe="/bin/ping"
type=SOCKADDR msg=audit(1140416531.597:35201):
saddr=0200006F7F000001301F675555550000
type=AVC msg=audit(1140416531.597:35202): avc: denied { name_bind } for
pid=25810 comm="ping" src=970 scontext=user_u:system_r:ping_t:s0-s0:c0.c255
tcontext=system_u:object_r:reserved_port_t:s0 tclass=tcp_socket
type=SYSCALL msg=audit(1140416531.597:35202): arch=c000003e syscall=49
success=no exit=-13 a0=4 a1=7fffffd878a0 a2=10 a3=3 items=0 pid=25810
auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0
comm="ping" exe="/bin/ping"
type=SOCKADDR msg=audit(1140416531.597:35202):
saddr=020003CA000000000000000000000000
type=AVC msg=audit(1140416531.597:35203): avc: denied { name_connect } for
pid=25810 comm="ping" dest=111 scontext=user_u:system_r:ping_t:s0-s0:c0.c255
tcontext=system_u:object_r:portmap_port_t:s0 tclass=tcp_socket
type=SYSCALL msg=audit(1140416531.597:35203): arch=c000003e syscall=42
success=no exit=-13 a0=4 a1=7fffffd87b00 a2=10 a3=3 items=0 pid=25810
auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0
comm="ping" exe="/bin/ping"
type=SOCKADDR msg=audit(1140416531.597:35203):
saddr=0200006F7F000001301F675555550000
type=AVC msg=audit(1140416531.597:35204): avc: denied { name_connect } for
pid=25810 comm="ping" dest=111 scontext=user_u:system_r:ping_t:s0-s0:c0.c255
tcontext=system_u:object_r:portmap_port_t:s0 tclass=tcp_socket
type=SYSCALL msg=audit(1140416531.597:35204): arch=c000003e syscall=42
success=no exit=-13 a0=4 a1=7fffffd87b30 a2=10 a3=0 items=0 pid=25810
auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0
comm="ping" exe="/bin/ping"
type=SOCKADDR msg=audit(1140416531.597:35204):
saddr=0200006F7F000001CAA44921952B0000
type=AVC msg=audit(1140416531.597:35205): avc: denied { name_bind } for
pid=25810 comm="ping" src=971 scontext=user_u:system_r:ping_t:s0-s0:c0.c255
tcontext=system_u:object_r:reserved_port_t:s0 tclass=tcp_socket
type=SYSCALL msg=audit(1140416531.597:35205): arch=c000003e syscall=49
success=no exit=-13 a0=4 a1=7fffffd878d0 a2=10 a3=3 items=0 pid=25810
auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0
comm="ping" exe="/bin/ping"
type=SOCKADDR msg=audit(1140416531.597:35205):
saddr=020003CB000000000000000000000000
type=AVC msg=audit(1140416531.597:35206): avc: denied { name_connect } for
pid=25810 comm="ping" dest=111 scontext=user_u:system_r:ping_t:s0-s0:c0.c255
tcontext=system_u:object_r:portmap_port_t:s0 tclass=tcp_socket
type=SYSCALL msg=audit(1140416531.597:35206): arch=c000003e syscall=42
success=no exit=-13 a0=4 a1=7fffffd87b30 a2=10 a3=3 items=0 pid=25810
auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0
comm="ping" exe="/bin/ping"
type=SOCKADDR msg=audit(1140416531.597:35206):
saddr=0200006F7F000001CAA44921952B0000
Do you have ypbind running on your machine, if so is the allow_ypbind boolean turned on? Yes, I'm using ypbind and /selinux/boolean/allow_yobind contains 0 0.
But it's also nscd I worry about:
fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0
connect(4, {sa_family=AF_FILE, path="/var/run/nscd/socket"}, 110) = -1 EACCES
(Permission denied)
nscd access is also not allowed.
FIxed in rawhide. |
Description of problem: ping is execution in its own context (ping_exec_t) and this context is apparently not allowed to use nscd. I get type=AVC msg=audit(1140416086.417:35186): avc: denied { name_connect } for pid=25684 comm="spamassassin" dest=111 scontext=system_u:system_r:procmail_t:s0 tcontext=system_u:object_r:portmap_port_t:s0 tclass=tcp_socket Version-Release number of selected component (if applicable): selinux-policy-2.2.11-1 How reproducible: always Steps to Reproduce: 1.as root: strace ping www.redhat.com 2. 3. Actual results: above message in audit logs Expected results: nscd used, connect syscall succeeds Additional info: