Bug 1422464 (CVE-2017-2628) - CVE-2017-2628 curl: negotiate not treated as connection-oriented (incomplete fix for CVE-2015-3148)
Summary: CVE-2017-2628 curl: negotiate not treated as connection-oriented (incomplete ...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2017-2628
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1429761
Blocks: 1415298 1422465
TreeView+ depends on / blocked
 
Reported: 2017-02-15 11:50 UTC by Martin Prpič
Modified: 2021-02-17 02:35 UTC (History)
20 users (show)

Fixed In Version:
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It was found that the fix for CVE-2015-3148 in curl was incomplete. An application using libcurl with HTTP Negotiate authentication could incorrectly re-use credentials for subsequent requests to the same server.
Clone Of:
Environment:
Last Closed: 2017-03-29 06:43:23 UTC
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:0847 0 normal SHIPPED_LIVE Moderate: curl security update 2017-03-29 10:32:29 UTC

Description Martin Prpič 2017-02-15 11:50:28 UTC 
It was found that the fix for CVE-2015-3148 did not correctly backported to curl in RHEL 6 because it did not reflect the fact that the HAVE_GSSAPI define was meanwhile substituted by USE_HTTP_NEGOTIATE.

The original issue was described as:

It was discovered that libcurl could incorrectly reuse Negotiate authenticated HTTP connections for subsequent requests. If an application using libcurl established a Negotiate authenticated HTTP connection to a server and sent subsequent requests with different credentials, the connection could be re-used with the initial set of credentials instead of using the new ones.

This issue was introduced in RHEL 6.7 and affects RHEL 6 curl only.
Comment 1 Martin Prpič 2017-02-15 12:44:03 UTC 
Acknowledgments:

Name: Paulo Andrade (Red Hat)
Comment 8 errata-xmlrpc 2017-03-29 06:32:48 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:0847 https://rhn.redhat.com/errata/RHSA-2017-0847.html
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