Bug 981058 - openssh-ldap ignores some configuration variables
openssh-ldap ignores some configuration variables
Product: Fedora
Classification: Fedora
Component: openssh (Show other bugs)
Unspecified Linux
unspecified Severity unspecified
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Assigned To: Petr Lautrbach
Fedora Extras Quality Assurance
Depends On:
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Reported: 2013-07-03 18:11 EDT by Jakub Jedelsky
Modified: 2015-07-30 02:14 EDT (History)
7 users (show)

See Also:
Fixed In Version: openssh-6.4p1-8.fc20
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Last Closed: 2015-02-03 07:02:37 EST
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
fix (84.37 KB, patch)
2014-06-03 12:10 EDT, Lyonel Vincent
no flags Details | Diff
Fix LDAP extension (1.14 KB, patch)
2015-01-09 12:51 EST, Jakub Jelen
no flags Details | Diff

  None (edit)
Description Jakub Jedelsky 2013-07-03 18:11:14 EDT
Description of problem:
Utility ssh-ldap-helper ignores some of options from its configuration file (/etc/ssh/ldap.conf). If one need to enable SSL but without checking CA, it should be configured with "tls_checkpeer" set to "allow". But ssh-ldap-helper set it into "hard" in anyway.

Same problem is with option "bind_policy".

Version-Release number of selected component (if applicable):
5.3p1-84.1.el6 (on centos 6)

How reproducible:

Steps to Reproduce:
1. Configure LDAP with self-signed certificate (I use Windows AD 2012 as LDAP server).
2. In SSH config file:
- enable SSL
- set tls_checkpeer to something different from "hard", eg. "allow"
3. Run ssh-ldap-helper in debug mode: `/usr/libexec/openssh/ssh-ldap-helper -dvvv -s LDAPUserName

Actual results:
Can't connect to server with self-signed certificate.
From debug mode:
debug3: TLS_CheckPeer Hard
ldap_simple_bind Can't contact LDAP server

Expected results:
Is connected to server with self-signed certificate and returns sshPublicKey.
From debug mode:
debug3: TLS_CheckPeer Allow

Exact config options:
host <IP>
port 636
binddn cn=bind user,cn=Users,dc=test,dc=env
bindpw bind_passwd
base dc=test,dc=env
scope sub
ssl yes
tls_checkpeer allow
Comment 1 Lyonel Vincent 2014-06-03 12:10:56 EDT
Created attachment 901853 [details]

fix a typo (missing line):

if (*intptr == -1)
        *intptr = value;

instead of

if (*intptr == -1)
Comment 2 Jakub Jelen 2015-01-09 12:51:44 EST
Created attachment 978338 [details]
Fix LDAP extension

It looks like there are more than one occurrence of this error which makes these problems TLS_CheckPeer and Bind_Policy (as mentioned in original description) in ldap.patch

Here is patch of patch, which should solve this behaviour. But I'm not sure if I will be able to test it.

Also applicable for f20, f21 and rawhide.
Comment 3 Fedora End Of Life 2015-01-09 13:39:03 EST
This message is a notice that Fedora 19 is now at end of life. Fedora 
has stopped maintaining and issuing updates for Fedora 19. It is 
Fedora's policy to close all bug reports from releases that are no 
longer maintained. Approximately 4 (four) weeks from now this bug will
be closed as EOL if it remains open with a Fedora 'version' of '19'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 19 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.
Comment 4 Fedora Update System 2015-01-15 09:34:17 EST
openssh-6.6.1p1-11.1.fc21 has been submitted as an update for Fedora 21.
Comment 5 Fedora Update System 2015-01-15 10:03:33 EST
openssh-6.4p1-8.fc20 has been submitted as an update for Fedora 20.
Comment 6 Fedora Update System 2015-01-17 00:40:08 EST
Package openssh-6.4p1-8.fc20:
* should fix your issue,
* was pushed to the Fedora 20 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing openssh-6.4p1-8.fc20'
as soon as you are able to.
Please go to the following url:
then log in and leave karma (feedback).
Comment 7 Fedora Update System 2015-01-17 18:55:33 EST
openssh-6.6.1p1-11.1.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 8 Fedora Update System 2015-02-03 07:02:37 EST
openssh-6.4p1-8.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 9 IanB 2015-07-28 00:30:05 EDT
I'm having this issue on a fully patched Centos6: openssh-ldap-5.3p1-104.el6_6.1.x86_64
Comment 10 Jakub Jelen 2015-07-28 01:37:56 EDT
This is fixed in last openssh release (openssh-5.3p1-112) even in RHEL. RHEL 6.7 is out, so you will probably have to wait for CentOS folks to rebuild it.
Comment 11 IanB 2015-07-29 20:04:38 EDT
Also having this issue on fully patched Centos7: openssh-ldap-6.6.1p1-12.el7_1.x86_64
Comment 12 Jakub Jelen 2015-07-30 02:14:19 EDT
Yes, fix for RHEL 7 is also on its way out.

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