Bug 730962
| Summary: | When using pam authentication in squid, AVC denial about netlink_audit_socket | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Jan Pazdziora <jpazdziora> |
| Component: | selinux-policy | Assignee: | Miroslav Grepl <mgrepl> |
| Status: | CLOSED ERRATA | QA Contact: | Milos Malik <mmalik> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 5.7 | CC: | bgollahe, dwalsh, dyordano, jskala, ksrot, mmalik, slukasik |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | selinux-policy-2.4.6-317.el5 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-02-21 05:47:55 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: | |||
We have in RHEL6 auth_domtrans_chk_passwd(squid_t) which allow this. Fixed in selinux-policy-2.4.6-317.el5 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, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2012-0158.html |
Description of problem: When we use squid with pam authentication, we get the following AVC denials: type=AVC msg=audit(1313494716.857:195): avc: denied { create } for pid=1413 comm="pam_auth" scontext=root:system_r:squid_t:s0 tcontext=root:system_r:squid_t:s0 tclass=netlink_audit_socket type=AVC msg=audit(1313494716.858:196): avc: denied { write } for pid=1413 comm="pam_auth" scontext=root:system_r:squid_t:s0 tcontext=root:system_r:squid_t:s0 tclass=netlink_audit_socket type=AVC msg=audit(1313494716.858:196): avc: denied { nlmsg_relay } for pid=1413 comm="pam_auth" scontext=root:system_r:squid_t:s0 tcontext=root:system_r:squid_t:s0 tclass=netlink_audit_socket type=AVC msg=audit(1313494716.858:196): avc: denied { audit_write } for pid=1413 comm="pam_auth" capability=29 scontext=root:system_r:squid_t:s0 tcontext=root:system_r:squid_t:s0 tclass=capability type=AVC msg=audit(1313494716.858:198): avc: denied { read } for pid=1413 comm="pam_auth" scontext=root:system_r:squid_t:s0 tcontext=root:system_r:squid_t:s0 tclass=netlink_audit_socket This was gathered in permissive. Version-Release number of selected component (if applicable): # rpm -q redhat-release selinux-policy squid redhat-release-5Server-5.7.0.3 selinux-policy-2.4.6-316.el5 squid-2.6.STABLE21-6.el5 How reproducible: Deterministic. Steps to Reproduce: 1. Comment out http_access in /etc/squid/squid.conf and add lines like auth_param basic program /usr/lib64/squid/pam_auth acl pam proxy_auth REQUIRED acl all src 0.0.0.0/0.0.0.0 http_access allow pam http_access allow localhost http_access deny all to it, then try to use the squid. Actual results: AVC denials line above, in the case of enforcing the operation fails. Expected results: No AVC denials. Additional info: