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disable automatic selection of FEATURE_SUID; improve its help text

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2011-01-18 13:52:48 +01:00
parent 094cc51e50
commit 3b5acaa432
5 changed files with 13 additions and 10 deletions
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14
Config.in
View File

@ -328,10 +328,18 @@ config FEATURE_SUID
symlinks pointing to each binary), and only set the suid bit on the
one that needs it.
The applets currently marked to need the suid bit are:
The applets which require root rights (need suid bit or
to be run by root) and will refuse to execute otherwise:
crontab, login, passwd, su, vlock, wall.
crontab, dnsd, findfs, ipcrm, ipcs, login, passwd, ping, su,
traceroute, vlock.
The applets which will use root rights if they have them
(via suid bit, or because run by root), but would try to work
without root right nevertheless:
findfs, ping[6], traceroute[6], mount.
Note that if you DONT select this option, but DO make busybox
suid root, ALL applets will run under root, which is a huge
security hole (think "cp /some/file /etc/passwd").
config FEATURE_SUID_CONFIG
bool "Runtime SUID/SGID configuration via /etc/busybox.conf"

2
include/applets.src.h
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@ -18,6 +18,8 @@ s - suid type:
_BB_SUID_MAYBE: neither of the above
(every instance of _BB_SUID_REQUIRE and _BB_SUID_MAYBE
needs to be justified in comment)
NB: please update FEATURE_SUID help text whenever you add/remove
_BB_SUID_REQUIRE or _BB_SUID_MAYBE applet.
*/
#if defined(PROTOTYPES)

4
loginutils/Config.src
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@ -186,7 +186,6 @@ config GETTY
config LOGIN
bool "login"
default y
select FEATURE_SUID
select FEATURE_SYSLOG
help
login is used when signing onto a system.
@ -229,7 +228,6 @@ config FEATURE_SECURETTY
config PASSWD
bool "passwd"
default y
select FEATURE_SUID
select FEATURE_SYSLOG
help
passwd changes passwords for user and group accounts. A normal user
@ -265,7 +263,6 @@ config CHPASSWD
config SU
bool "su"
default y
select FEATURE_SUID
select FEATURE_SYSLOG
help
su is used to become another user during a login session.
@ -295,7 +292,6 @@ config SULOGIN
config VLOCK
bool "vlock"
default y
select FEATURE_SUID
help
Build the "vlock" applet which allows you to lock (virtual) terminals.

1
miscutils/Config.src
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@ -170,7 +170,6 @@ config FEATURE_CROND_DIR
config CRONTAB
bool "crontab"
default y
select FEATURE_SUID
help
Crontab manipulates the crontab for a particular user. Only
the superuser may specify a different user and/or crontab directory.

2
util-linux/Config.src
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@ -361,7 +361,6 @@ config FEATURE_HWCLOCK_ADJTIME_FHS
config IPCRM
bool "ipcrm"
default y
select FEATURE_SUID
help
The ipcrm utility allows the removal of System V interprocess
communication (IPC) objects and the associated data structures
@ -371,7 +370,6 @@ config IPCS
bool "ipcs"
default y
depends on PLATFORM_LINUX
select FEATURE_SUID
help
The ipcs utility is used to provide information on the currently
allocated System V interprocess (IPC) objects in the system.