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Bug 1971170 - sslh_t needs capability net_admin
Summary: sslh_t needs capability net_admin
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: selinux-policy
Version: 34
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Zdenek Pytela
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2021-06-12 16:26 UTC by Ralf Ertzinger
Modified: 2021-06-12 16:26 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: ---
Doc Text:
Clone Of:
Last Closed:
Type: Bug

Attachments (Terms of Use)

Description Ralf Ertzinger 2021-06-12 16:26:40 UTC
Description of problem:
sshl, when run in transparent proxy mode, needs CAP_NET_ADMIN to set IP_TRANSPARENT on the socket. The systemd service file already allows this capability, but right now it's denied by selinux:

type=AVC msg=audit(1623508461.430:33758): avc:  denied  { net_admin } for  pid=63924 comm="sslh" capability=12  scontext=system_u:system_r:sslh_t:s0 tcontext=system_u:system_r:sslh_t:s0 tclass=capability permissive=0

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

How reproducible:

Steps to Reproduce:
1. configure sslh for transparent proxying
2. attempt to use a transparent connection

results in
sslh[3867]: common.c:237:setsockopt: Operation not permitted

Generating a local policy with

allow sslh_t self:capability net_admin;

makes sslh work for transparent mode.

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