Re: [us...@httpd] SSLRequire SUCCESS but actually failure (2 possible bugs)

[Joe Orton]

On Mon, Nov 01, 2010 at 04:42:41PM -0400, Jeff Blaine wrote:
...
 [Mon Nov 01 14:50:14 2010] [error] [client xxx.xx.160.29] access
 to /apps/rtsrv1dev/share/html/ failed, reason: SSL requirement
 expression not fulfilled (see SSL logfile for more details)
 
 However, note the SUCCESS (bogus?) via CustomLog of
 %{SSL_CLIENT_VERIFY}x

The SUCCESS doesn't sound bogus in this context - it merely indicates 
whether or not the client cert itself verified OK, which is orthogonal 
to SSLRequire.

You're not using the worker MPM here are you?

 Here's what *DOES WORK* for all parties with certificates, but
 is not really what we want, and as I understand the docs, the
 other (full DN) should work.
 
 SSLRequire %{SSL_CLIENT_S_DN_CN} in { \

Yes, the full DN comparison should work; I wouldn't necessarily 
recommend it though.

It could be an SSLRequire bug you are hitting here, can't say without 
debugging it; if you can verify with vanilla upstream 2.2.17 you could 
file a bug at issues.apache.org, or else open a support ticket with Red 
Hat for the RHEL5 package.

Regards, Joe

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[us...@httpd] SSLRequire SUCCESS but actually failure (2 possible bugs)

[Jeff Blaine]

Hi folks,

I'm using Apache 2.2.3 with mod_ssl on a RHELv5.5 box.  I have
been stumped for 3 weeks now by a problem with SSLRequire
and certificates.

FWIW, I also built the latest Apache with SSL from source,
ran it on a separate port, and got equally odd results.

I have posed this same question/situation on the mod_ssl mailing
list, but did not get anywhere.

[r...@rtdev1 conf.d]# rpm -qa | grep httpd
httpd-2.2.3-43.el5_5.3
[r...@rtdev1 conf.d]# rpm -qa | grep mod_ssl
mod_ssl-2.2.3-43.el5_5.3
[r...@rtdev1 conf.d]#

Section from ssl.conf:

...
SSLRequire %{SSL_CLIENT_S_DN} in { \
/O=our.org/OU=people/UID=jblaine/CN=Blaine Charles J., \
/O=our.org/OU=people/UID=mlaveless/CN=Laveless Marc W., \
/O=our.org/OU=people/UID=mbs/CN=Simpson Mary B, \
/O=our.org/OU=people/UID=bcietta/CN=Cietta Barbara A. \
}
...

The 403 error as it manifests itself in the ssl_error.log:

[Mon Nov 01 14:50:14 2010] [info] Access to 
/apps/rtsrv1dev/share/html/ denied for xxx.xx.160.29 (requirement 
expression not fulfilled)


[Mon Nov 01 14:50:14 2010] [info] Failed expression: 
%{SSL_CLIENT_S_DN} in { /O=our.org/OU=people/UID=jblaine/CN=Blaine 
Charles J., /O=our.org/OU=people/UID=mlaveless/CN=Laveless Mark W., 
/O=our.org/OU=people/UID=mbs/CN=Simpson Mary B, 
/O=our.org/OU=people/UID=bcietta/CN=Cietta Barbara A. }


[Mon Nov 01 14:50:14 2010] [error] [client xxx.xx.160.29] access to 
/apps/rtsrv1dev/share/html/ failed, reason: SSL requirement expression 
not fulfilled (see SSL logfile for more details)


However, note the SUCCESS (bogus?) via CustomLog of
%{SSL_CLIENT_VERIFY}x

[01/Nov/2010:14:50:14 -0400] xxx.xx.160.29 on TLSv1 RC4-MD5 
/O=our.org/OU=People/UID=bcian/CN=Ciancetta Barbara J. SUCCESS


And here's another failure from Barbara, with IE8 instead of
Firefox:

[01/Nov/2010:14:49:07 -0400] xxx.xx.160.29 on TLSv1 AES256-SHA 
/O=our.org/OU=People/UID=bcietta/CN=Cietta Barbara J. SUCCESS


Note, however, this was a session that worked (SUCCESS actually
meant success...).  IE8 on my machine:

[01/Nov/2010:15:02:46 -0400] xxx.xx.0.150 on TLSv1 AES128-SHA 
/O=our.org/OU=people/UID=jblaine/CN=Blaine Charles J. SUCCESS


Here's what *DOES WORK* for all parties with certificates, but
is not really what we want, and as I understand the docs, the
other (full DN) should work.

SSLRequire %{SSL_CLIENT_S_DN_CN} in { \
Blaine Charles J.,
Laveless Marc W.,
Simpson Mary B,
Cietta Barbara A. }

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