Bug 1365490
| Summary: | RHEA-2016:0817-1 broke usage of $ENV{HTTPS_CERT_FILE} and $ENV{HTTPS_KEY_FILE} | ||||||||
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| Product: | Red Hat Enterprise Linux 6 | Reporter: | Pasi Sjöholm <tigeli> | ||||||
| Component: | perl-libwww-perl | Assignee: | Petr Pisar <ppisar> | ||||||
| Status: | CLOSED ERRATA | QA Contact: | Martin Kyral <mkyral> | ||||||
| Severity: | unspecified | Docs Contact: | |||||||
| Priority: | unspecified | ||||||||
| Version: | 6.8 | CC: | bnater, jorton, perl-maint-list, ppisar, psabata | ||||||
| Target Milestone: | rc | Keywords: | Patch, Regression | ||||||
| Target Release: | --- | ||||||||
| Hardware: | Unspecified | ||||||||
| OS: | Unspecified | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | perl-libwww-perl-5.833-4.el6 | Doc Type: | If docs needed, set a value | ||||||
| Doc Text: |
Cause:
Using an LWP Perl module that does a client
TLS authentication and the client credentials are
specified by HTTPS_CERT_FILE and HTTPS_KEY_FILE
environment variables after updating perl-libwww-perl
package to 5.833-3.el6 version.
Consequence:
The module does not send client certificate to a server.
This usually leads to access denial to an HTTPS server.
Fix:
A support for HTTPS_CERT_FILE and HTTPS_KEY_FILE
environment variables to specify files with
client's certificate and client's private key
was added to LWP's IO::Socket::SSL TLS back-end.
Result:
LWP applications that used environment variables for
specifying their TLS credentials keep working even with
updated perl-libwww-perl package that changed default TLS
backend from Net::SSL to IO::Socket::SSL.
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Story Points: | --- | ||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2017-03-21 09:25:37 UTC | Type: | Bug | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
| Embargoed: | |||||||||
| Bug Depends On: | |||||||||
| Bug Blocks: | 1359263 | ||||||||
| Attachments: |
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Net::SSL recognizes these environment variables: HTTPS_CA_DIR HTTPS_CA_FILE HTTPS_CERT_FILE HTTPS_DEBUG HTTPS_KEY_FILE HTTPS_PKCS12_FILE HTTPS_PKCS12_PASSWORD HTTPS_PROXY HTTPS_PROXY_PASSWORD HTTPS_PROXY_USERNAME HTTPS_VERSION Not all of them can be implemented on top of IO::Socket::SSL. Thus full compatibility is not possible. We can add support for HTTPS_KEY_FILE and HTTPS_CERT_FILE easily. But please contact Red Hat support. These changes are driven by customer requests and Bugzilla is not a support tool. Created attachment 1195865 [details]
Fix
Created attachment 1195881 [details] Test case For testing you can use certificate and key files from test case in bug #745800 and this attached script. How to test: (1) Create TLS server and client certificates and keys. (2) Start an TLS server requiring client certificate. (3) Use an LWP user agent to connect to the server. The LWP user agent should be invoked with HTTPS_CERT_FILE and HTTPS_KEY_FILE environment variables pointing client certificate and key file. (4) Check the server accepts a connection from the client because the client sent certificate specified in the HTTPS_CERT_FILE environment variable. Before: The server refuses the connection because the client does not send any certificate. After: The server accepts the connection. Please perform the test with perl-IO-Socket-SSL and without perl-Crypt-SSLeay packages installed. Then repeat the test with perl-Crypt-SSLeay and without perl-IO-Socket-SSL installed. Please note that this special compatibility fix is intended for RHEL-6 only. Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2017-0599.html |
Description of problem: By default the RHEA-2016:0817-1 broke the usage of $ENV{HTTPS_CERT_FILE} and $ENV{HTTPS_KEY_FILE}. As the patch (https://bugzilla.redhat.com/attachment.cgi?id=1103499&action=diff) does not provide compability between IO::Socket:SSL and Net::SSL Version-Release number of selected component (if applicable): perl-libwww-perl-5.833-3.el6 How reproducible: 100% Steps to Reproduce: 1. Use SSL client certificates through $ENV{HTTPS_CERT_FILE} and $ENV{HTTPS_KEY_FILE} Actual results: Failure. Expected results: Something that does not require people to modify using the code as the API gets broken between maintenance releases.