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Re: (ITS#7787) Authentication success if password is expired and password must be changed
by coudot＠linagora.com 16 Jan '14

16 Jan '14

Le 16/01/2014 16:42, Howard Chu a écrit : > coudot(a)linagora.com wrote: >> >> >> Le 16/01/2014 15:31, Howard Chu a écrit : >>> coudot(a)linagora.com wrote: >>>> Full_Name: Clement OUDOT >>>> Version: 2.4.38 >>>> OS: GNU/Linux >>>> URL: ftp://ftp.openldap.org/incoming/ >>>> Submission from: (NULL) (83.145.72.122) >>>> >>>> >>>> Here is the situation : a user account is >>>> 1/ expired (the password age is more that the one configured in >>>> pwdMaxGae) >>>> 2/ must be reset (pwdReset is TRUE and pwdMustChange in ppolicy >>>> configuration >>>> object is TRUE) >>>> >>>> In this case, when doing a BIND, the result code is 0: >>>> $ ldapwhoami -x -D uid=coudot,ou=users,dc=example,dc=com -w secret >>>> -e >>>> ppolicy >>>> ldap_bind: Success (0); Password must be changed (Password expires >>>> in >>>> 0 >>>> seconds) >>>> dn: uid=coudot,ou=users,dc=example,dc=com >>>> >>>> If I remove pwdReset attribute, then: >>>> $ ldapwhoami -x -D uid=coudot,ou=users,dc=example,dc=com -w secret >>>> -e >>>> ppolicy >>>> ldap_bind: Invalid Credentials (49); Password expired >>>> >>>> According to password policy draft, the password must change flag >>>> should not >>>> affect the BIND result code. >>> >>> The draft specifies the policy checks in the order in which they are >>> to be performed. The PasswordMustBeChanged check occurs before the >>> PasswordExpired check. >>> >>> The code works as designed. >> >> >> Well, I understand. If this is not a bug in the OpenLDAP >> implementation, it is maybe a point to discuss in the draft. Indeed, >> a >> simple LDAP client (that don't use ppolicy control) will get a >> successful BIND response even if the password is expired. > > How can the password be expired if the admin has just reset it? > I never said it was *just* reset, we can imagine the password was reset a year ago and that the user never changed it. What I point here is that a reset password never expires, whatever you configure in pwdMaxAge. People using the password reset feature must be aware of this, and be sure to have an application that will force the user to change its password. >> Maybe it is the wanted behavior, maybe not. > >> The fact is that if an administator reset the password (by changing >> password value and setting pwdReset to TRUE), this reseted password >> will >> never expire. From my point of view, this is a security flaw in the >> password policy system, as a lot of applications just use the BIND >> operation on LDAP server (searches and other operations are done by >> application LDAP accounts). > > I agree that the MustChange feature doesn't mesh well with > applications that simply perform a Bind and then do nothing else. Feel > free to raise this point on the ldapext mailing list. Yes I will give a try. You can close this ITS, thanks for the answers. Clement.

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Re: (ITS#7787) Authentication success if password is expired and password must be changed
by hyc＠symas.com 16 Jan '14

16 Jan '14

coudot(a)linagora.com wrote: > > > Le 16/01/2014 15:31, Howard Chu a écrit : >> coudot(a)linagora.com wrote: >>> Full_Name: Clement OUDOT >>> Version: 2.4.38 >>> OS: GNU/Linux >>> URL: ftp://ftp.openldap.org/incoming/ >>> Submission from: (NULL) (83.145.72.122) >>> >>> >>> Here is the situation : a user account is >>> 1/ expired (the password age is more that the one configured in >>> pwdMaxGae) >>> 2/ must be reset (pwdReset is TRUE and pwdMustChange in ppolicy >>> configuration >>> object is TRUE) >>> >>> In this case, when doing a BIND, the result code is 0: >>> $ ldapwhoami -x -D uid=coudot,ou=users,dc=example,dc=com -w secret -e >>> ppolicy >>> ldap_bind: Success (0); Password must be changed (Password expires in >>> 0 >>> seconds) >>> dn: uid=coudot,ou=users,dc=example,dc=com >>> >>> If I remove pwdReset attribute, then: >>> $ ldapwhoami -x -D uid=coudot,ou=users,dc=example,dc=com -w secret -e >>> ppolicy >>> ldap_bind: Invalid Credentials (49); Password expired >>> >>> According to password policy draft, the password must change flag >>> should not >>> affect the BIND result code. >> >> The draft specifies the policy checks in the order in which they are >> to be performed. The PasswordMustBeChanged check occurs before the >> PasswordExpired check. >> >> The code works as designed. > > > Well, I understand. If this is not a bug in the OpenLDAP > implementation, it is maybe a point to discuss in the draft. Indeed, a > simple LDAP client (that don't use ppolicy control) will get a > successful BIND response even if the password is expired. How can the password be expired if the admin has just reset it? > Maybe it is the wanted behavior, maybe not. > The fact is that if an administator reset the password (by changing > password value and setting pwdReset to TRUE), this reseted password will > never expire. From my point of view, this is a security flaw in the > password policy system, as a lot of applications just use the BIND > operation on LDAP server (searches and other operations are done by > application LDAP accounts). I agree that the MustChange feature doesn't mesh well with applications that simply perform a Bind and then do nothing else. Feel free to raise this point on the ldapext mailing list. -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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Re: (ITS#7787) Authentication success if password is expired and password must be changed
by coudot＠linagora.com 16 Jan '14

16 Jan '14

Le 16/01/2014 15:31, Howard Chu a écrit : > coudot(a)linagora.com wrote: >> Full_Name: Clement OUDOT >> Version: 2.4.38 >> OS: GNU/Linux >> URL: ftp://ftp.openldap.org/incoming/ >> Submission from: (NULL) (83.145.72.122) >> >> >> Here is the situation : a user account is >> 1/ expired (the password age is more that the one configured in >> pwdMaxGae) >> 2/ must be reset (pwdReset is TRUE and pwdMustChange in ppolicy >> configuration >> object is TRUE) >> >> In this case, when doing a BIND, the result code is 0: >> $ ldapwhoami -x -D uid=coudot,ou=users,dc=example,dc=com -w secret -e >> ppolicy >> ldap_bind: Success (0); Password must be changed (Password expires in >> 0 >> seconds) >> dn: uid=coudot,ou=users,dc=example,dc=com >> >> If I remove pwdReset attribute, then: >> $ ldapwhoami -x -D uid=coudot,ou=users,dc=example,dc=com -w secret -e >> ppolicy >> ldap_bind: Invalid Credentials (49); Password expired >> >> According to password policy draft, the password must change flag >> should not >> affect the BIND result code. > > The draft specifies the policy checks in the order in which they are > to be performed. The PasswordMustBeChanged check occurs before the > PasswordExpired check. > > The code works as designed. Well, I understand. If this is not a bug in the OpenLDAP implementation, it is maybe a point to discuss in the draft. Indeed, a simple LDAP client (that don't use ppolicy control) will get a successful BIND response even if the password is expired. Maybe it is the wanted behavior, maybe not. The fact is that if an administator reset the password (by changing password value and setting pwdReset to TRUE), this reseted password will never expire. From my point of view, this is a security flaw in the password policy system, as a lot of applications just use the BIND operation on LDAP server (searches and other operations are done by application LDAP accounts). Clément.

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Re: (ITS#7787) Authentication success if password is expired and password must be changed
by hyc＠symas.com 16 Jan '14

16 Jan '14

coudot(a)linagora.com wrote: > Full_Name: Clement OUDOT > Version: 2.4.38 > OS: GNU/Linux > URL: ftp://ftp.openldap.org/incoming/ > Submission from: (NULL) (83.145.72.122) > > > Here is the situation : a user account is > 1/ expired (the password age is more that the one configured in pwdMaxGae) > 2/ must be reset (pwdReset is TRUE and pwdMustChange in ppolicy configuration > object is TRUE) > > In this case, when doing a BIND, the result code is 0: > $ ldapwhoami -x -D uid=coudot,ou=users,dc=example,dc=com -w secret -e ppolicy > ldap_bind: Success (0); Password must be changed (Password expires in 0 > seconds) > dn: uid=coudot,ou=users,dc=example,dc=com > > If I remove pwdReset attribute, then: > $ ldapwhoami -x -D uid=coudot,ou=users,dc=example,dc=com -w secret -e ppolicy > ldap_bind: Invalid Credentials (49); Password expired > > According to password policy draft, the password must change flag should not > affect the BIND result code. The draft specifies the policy checks in the order in which they are to be performed. The PasswordMustBeChanged check occurs before the PasswordExpired check. The code works as designed. -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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(ITS#7787) Authentication success if password is expired and password must be changed
by coudot＠linagora.com 16 Jan '14

16 Jan '14

Full_Name: Clement OUDOT Version: 2.4.38 OS: GNU/Linux URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (83.145.72.122) Here is the situation : a user account is 1/ expired (the password age is more that the one configured in pwdMaxGae) 2/ must be reset (pwdReset is TRUE and pwdMustChange in ppolicy configuration object is TRUE) In this case, when doing a BIND, the result code is 0: $ ldapwhoami -x -D uid=coudot,ou=users,dc=example,dc=com -w secret -e ppolicy ldap_bind: Success (0); Password must be changed (Password expires in 0 seconds) dn: uid=coudot,ou=users,dc=example,dc=com If I remove pwdReset attribute, then: $ ldapwhoami -x -D uid=coudot,ou=users,dc=example,dc=com -w secret -e ppolicy ldap_bind: Invalid Credentials (49); Password expired According to password policy draft, the password must change flag should not affect the BIND result code.

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Re: (ITS#7786) Impossible to modify cn=config if olcDbDirectory doesn't exist
by hyc＠symas.com 15 Jan '14

15 Jan '14

pierangelo.masarati(a)polimi.it wrote: > On 01/15/2014 09:59 AM, raphael.ouazana(a)linagora.com wrote: >> Full_Name: Raphael Ouazana >> Version: 2.4.38 >> OS: Linux >> URL: ftp://ftp.openldap.org/incoming/ >> Submission from: (NULL) (88.173.78.196) >> >> >> Hi, >> >> I have an old configuration that I would like to export/reimport. The >> olcDbDirectory item of this configuration contains a directory that does not >> longer exist. >> It it then impossible to modify the parameter: >> - I was told not to edit directly LDIF config files >> - if i try a slapcat -n0 I get: >> 52d64c91 olcDbDirectory: value #0: invalid path: No such file or directory >> 52d64c91 config error processing olcDatabase={2}hdb,cn=config: olcDbDirectory: >> value #0: invalid path: No such file or directory >> slapcat: bad configuration directory! >> >> I think slapcat should always allow to export a configuration. > > I see the point; slapcat is failing because to export the configuration > (c->op == SLAP_CONFIG_EMIT) it needs to read the configuration first, > and it reads the whole config tree. > > Perhaps when slapcat of only the config database is requested, config > parsing should skip other databases, or at least ignore errors, if possible. Agreed, we definitely need this. > > p. > > -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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Re: (ITS#7786) Impossible to modify cn=config if olcDbDirectory doesn't exist
by pierangelo.masarati＠polimi.it 15 Jan '14

15 Jan '14

On 01/15/2014 09:59 AM, raphael.ouazana(a)linagora.com wrote: > Full_Name: Raphael Ouazana > Version: 2.4.38 > OS: Linux > URL: ftp://ftp.openldap.org/incoming/ > Submission from: (NULL) (88.173.78.196) > > > Hi, > > I have an old configuration that I would like to export/reimport. The > olcDbDirectory item of this configuration contains a directory that does not > longer exist. > It it then impossible to modify the parameter: > - I was told not to edit directly LDIF config files > - if i try a slapcat -n0 I get: > 52d64c91 olcDbDirectory: value #0: invalid path: No such file or directory > 52d64c91 config error processing olcDatabase={2}hdb,cn=config: olcDbDirectory: > value #0: invalid path: No such file or directory > slapcat: bad configuration directory! > > I think slapcat should always allow to export a configuration. I see the point; slapcat is failing because to export the configuration (c->op == SLAP_CONFIG_EMIT) it needs to read the configuration first, and it reads the whole config tree. Perhaps when slapcat of only the config database is requested, config parsing should skip other databases, or at least ignore errors, if possible. p. -- Pierangelo Masarati Associate Professor Dipartimento di Scienze e Tecnologie Aerospaziali Politecnico di Milano

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(ITS#7786) Impossible to modify cn=config if olcDbDirectory doesn't exist
by raphael.ouazana＠linagora.com 15 Jan '14

15 Jan '14

Full_Name: Raphael Ouazana Version: 2.4.38 OS: Linux URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (88.173.78.196) Hi, I have an old configuration that I would like to export/reimport. The olcDbDirectory item of this configuration contains a directory that does not longer exist. It it then impossible to modify the parameter: - I was told not to edit directly LDIF config files - if i try a slapcat -n0 I get: 52d64c91 olcDbDirectory: value #0: invalid path: No such file or directory 52d64c91 config error processing olcDatabase={2}hdb,cn=config: olcDbDirectory: value #0: invalid path: No such file or directory slapcat: bad configuration directory! I think slapcat should always allow to export a configuration. Regards, Raphaël Ouazana.

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Re: (ITS#7785) ContextCSN not updated
by michael＠stroeder.com 14 Jan '14

14 Jan '14

badguy9588(a)hotmail.com wrote: > Full_Name: > Version: 2.4.11 > OS: Redhat Linux > URL: ftp://ftp.openldap.org/incoming/ > Submission from: (NULL) (202.82.28.193) > > > We are using 4 ways multimaster openldap 2.4.11 for more than 5 years. > > On Jan 3, 2014, one of the openldap contextCSN is not updated, always stay at > Jan 3 01:xx:xx, all the other servers are already updated to Jan 6. Any reason why you insist on using such an ancient release? In 5,5 years since 2.4.11 release there have been numerous important contextCSN related fixes to OpenLDAP 2.4.x code. You should definitely upgrade! Everything else is wasting your own time and the OpenLDAP project people's resources. Ciao, Michael.

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(ITS#7785) ContextCSN not updated
by badguy9588＠hotmail.com 14 Jan '14

14 Jan '14

Full_Name: Version: 2.4.11 OS: Redhat Linux URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (202.82.28.193) We are using 4 ways multimaster openldap 2.4.11 for more than 5 years. On Jan 3, 2014, one of the openldap contextCSN is not updated, always stay at Jan 3 01:xx:xx, all the other servers are already updated to Jan 6. So, this introduce large amount of sync data between the 4 openldap servers finally, cause the slapd process memory increase from 500mb to 4Gb and finally, all memory used up and all 4 servers hanged and error message in KVM shows "Kernel panic, out of memory". The servers needed to reboot in order to resume access. However, after some time, it will happen again. We finally find that the contextCSN in one server is not updated. What we do is stop the slapd process in that server, delete the data files and the do a backup in other 3 servers. Then restore the backup in the problem server from the backup using slapadd and finally, all the data is synced. What's the root cause of this problem ? We have been using it for over 5 years already and this is the first time that this problem occurs. Thanks

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