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Code Issues Releases Activity

pw: fail if an invalid entry is found while parsing master.passwd and group

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PR:		198554
Reported by:	diaran <fbsd@centraltech.co.uk>
MFC after:	2 days
This commit is contained in:
Baptiste Daroussin 2015-07-07 21:05:20 +00:00
parent a13589bc47
commit 59856c7d26
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=285256
2 changed files with 33 additions and 0 deletions
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7
usr.sbin/pw/pw_vpw.c
View File

@ -38,6 +38,7 @@ static const char rcsid[] =
#include <string.h>
#include <stdlib.h>
#include <sys/param.h>
#include <err.h>
#include "pwupd.h"
@ -80,6 +81,9 @@ vnextpwent(char const *nam, uid_t uid, int doclose)
if (line[linelen - 1 ] == '\n')
line[linelen - 1] = '\0';
pw = pw_scan(line, PWSCAN_MASTER);
if (pw == NULL)
errx(EXIT_FAILURE, "Invalid user entry in '%s':"
" '%s'", getpwpath(_MASTERPASSWD), line);
if (uid != (uid_t)-1) {
if (uid == pw->pw_uid)
break;
@ -160,6 +164,9 @@ vnextgrent(char const *nam, gid_t gid, int doclose)
if (line[linelen - 1 ] == '\n')
line[linelen - 1] = '\0';
gr = gr_scan(line);
if (gr == NULL)
errx(EXIT_FAILURE, "Invalid group entry in '%s':"
" '%s'", getgrpath(_GROUP), line);
if (gid != (gid_t)-1) {
if (gid == gr->gr_gid)
break;

26
usr.sbin/pw/tests/pw_useradd.sh
View File

@ -207,6 +207,30 @@ user_add_expiration_body() {
atf_check -s exit:0 ${PW} userdel foo
}
atf_test_case user_add_invalid_user_entry
user_add_invalid_user_entry_body() {
touch ${HOME}/master.passwd
touch ${HOME}/group
pwd_mkdb -p -d ${HOME} ${HOME}/master.passwd || \
atf_fail "generate passwd from master.passwd"
atf_check -s exit:0 ${PW} useradd foo
echo "foo1:*:1002" >> ${HOME}/master.passwd
atf_check -s exit:1 -e match:"Invalid user entry" ${PW} useradd foo2
}
atf_test_case user_add_invalid_group_entry
user_add_invalid_group_entry_body() {
touch ${HOME}/master.passwd
touch ${HOME}/group
pwd_mkdb -p -d ${HOME} ${HOME}/master.passwd || \
atf_fail "generate passwd from master.passwd"
atf_check -s exit:0 ${PW} useradd foo
echo 'foo1:*:1002' >> group
atf_check -s exit:1 -e match:"Invalid group entry" ${PW} useradd foo2
}
atf_init_test_cases() {
atf_add_test_case user_add
atf_add_test_case user_add_noupdate
@ -225,4 +249,6 @@ atf_init_test_cases() {
atf_add_test_case user_add_password_expiration_date_relative
atf_add_test_case user_add_name_too_long
atf_add_test_case user_add_expiration
atf_add_test_case user_add_invalid_user_entry
atf_add_test_case user_add_invalid_group_entry
}