URL: https://github.com/freeipa/freeipa/pull/757 Author: tomaskrizek Title: #757: ca, kra install: validate DM password Action: opened
PR body: """ Prevent CA and KRA installation from proceeding if provided DM password is invalid to avoid broken installations with no possibility to uninstall CA or KRA. https://pagure.io/freeipa/issue/6892 """ To pull the PR as Git branch: git remote add ghfreeipa https://github.com/freeipa/freeipa git fetch ghfreeipa pull/757/head:pr757 git checkout pr757
From fdfe7577da8a70f05414f3527449c6aaed7c3a2b Mon Sep 17 00:00:00 2001 From: Tomas Krizek <tkri...@redhat.com> Date: Wed, 3 May 2017 10:05:25 +0200 Subject: [PATCH 1/3] ca install: merge duplicated code for DM password Extract copy-pasted code to a single function. Signed-off-by: Tomas Krizek <tkri...@redhat.com> Related https://pagure.io/freeipa/issue/6892 --- install/tools/ipa-ca-install | 40 +++++++++++++++++----------------------- 1 file changed, 17 insertions(+), 23 deletions(-) diff --git a/install/tools/ipa-ca-install b/install/tools/ipa-ca-install index 60261aa..da6e5c3 100755 --- a/install/tools/ipa-ca-install +++ b/install/tools/ipa-ca-install @@ -116,9 +116,19 @@ def parse_options(): return safe_options, options, filename -def get_dirman_password(): - return installutils.read_password( - "Directory Manager (existing master)", confirm=False, validate=False) +def _get_dirman_password(password=None, unattended=False): + if not password: + if unattended: + sys.exit('Directory Manager password required') + try: + password = installutils.read_password( + "Directory Manager (existing master)", confirm=False, + validate=False) + except KeyboardInterrupt: + sys.exit(0) + if password is None: + sys.exit("Directory Manager password required") + return password def install_replica(safe_options, options, filename): @@ -142,16 +152,8 @@ def install_replica(safe_options, options, filename): check_creds(options, api.env.realm) # get the directory manager password - dirman_password = options.password - if not dirman_password: - if options.unattended: - sys.exit('Directory Manager password required') - try: - dirman_password = get_dirman_password() - except KeyboardInterrupt: - sys.exit(0) - if dirman_password is None: - sys.exit("Directory Manager password required") + dirman_password = _get_dirman_password( + options.password, options.unattended) if (not options.promote and not options.admin_password and not options.skip_conncheck and options.unattended): @@ -199,16 +201,8 @@ def install_replica(safe_options, options, filename): def install_master(safe_options, options): - dm_password = options.password - if not dm_password: - if options.unattended: - sys.exit('Directory Manager password required') - try: - dm_password = get_dirman_password() - except KeyboardInterrupt: - sys.exit(0) - if dm_password is None: - sys.exit("Directory Manager password required") + dm_password = _get_dirman_password( + options.password, options.unattended) options.realm_name = api.env.realm options.domain_name = api.env.domain From 22d86cc51ef379fb5346669f9e68662f63f7cc67 Mon Sep 17 00:00:00 2001 From: Tomas Krizek <tkri...@redhat.com> Date: Wed, 3 May 2017 10:01:09 +0200 Subject: [PATCH 2/3] installutils: add DM password validator Add a validator that checks whether provided Directory Manager is valid by attempting to connect to LDAP. Signed-off-by: Tomas Krizek <tkri...@redhat.com> Related https://pagure.io/freeipa/issue/6892 --- ipaserver/install/installutils.py | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/ipaserver/install/installutils.py b/ipaserver/install/installutils.py index 9230e70..ea475da 100644 --- a/ipaserver/install/installutils.py +++ b/ipaserver/install/installutils.py @@ -50,6 +50,7 @@ from ipapython import ipautil, admintool, version from ipapython.admintool import ScriptError from ipapython.ipa_log_manager import root_logger +from ipapython.ipaldap import DIRMAN_DN, LDAPClient from ipalib.util import validate_hostname from ipalib import api, errors, x509 from ipapython.dn import DN @@ -329,6 +330,19 @@ def _read_password_default_validator(password): if len(password) < 8: raise ValueError("Password must be at least 8 characters long") + +def dm_password_validator(password): + """ + Validate DM password by attempting to connect to LDAP. api.env has to + contain valid ldap_uri. + """ + client = LDAPClient(api.env.ldap_uri, cacert=paths.IPA_CA_CRT) + try: + client.simple_bind(DIRMAN_DN, password) + except errors.ACIError: + raise ValueError("Invalid Directory Manager password") + + def read_password(user, confirm=True, validate=True, retry=True, validator=_read_password_default_validator): correct = False pwd = None From 23c0ca962d8de00f3a3021a8b5a6d622d2b506a3 Mon Sep 17 00:00:00 2001 From: Tomas Krizek <tkri...@redhat.com> Date: Wed, 3 May 2017 10:16:13 +0200 Subject: [PATCH 3/3] ca, kra install: validate DM password Before proceeding with installation, validate DM password. If the provided DM password is invalid, abort the installation. Signed-off-by: Tomas Krizek <tkri...@redhat.com> Fixes https://pagure.io/freeipa/issue/6892 --- install/tools/ipa-ca-install | 7 +++++-- ipaserver/install/ipa_kra_install.py | 7 +++++++ 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/install/tools/ipa-ca-install b/install/tools/ipa-ca-install index da6e5c3..f6c8937 100755 --- a/install/tools/ipa-ca-install +++ b/install/tools/ipa-ca-install @@ -126,8 +126,11 @@ def _get_dirman_password(password=None, unattended=False): validate=False) except KeyboardInterrupt: sys.exit(0) - if password is None: - sys.exit("Directory Manager password required") + try: + installutils.dm_password_validator(password) + except ValueError: + sys.exit("Directory Manager password is invalid") + return password diff --git a/ipaserver/install/ipa_kra_install.py b/ipaserver/install/ipa_kra_install.py index 8b1cb63..46f7a44 100644 --- a/ipaserver/install/ipa_kra_install.py +++ b/ipaserver/install/ipa_kra_install.py @@ -137,6 +137,13 @@ def ask_for_options(self): def run(self): super(KRAInstaller, self).run() + # Verify DM password. This has to be called after ask_for_options(), + # so it can't be placed in validate_options(). + try: + installutils.dm_password_validator(self.options.password) + except ValueError: + raise RuntimeError("Directory Manager password is invalid") + if not cainstance.is_ca_installed_locally(): raise RuntimeError("Dogtag CA is not installed. " "Please install the CA first")
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