Bug 1299615 - (CVE-2016-0721) CVE-2016-0721 pcs: cookies are not invalidated upon logout
CVE-2016-0721 pcs: cookies are not invalidated upon logout
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20160216,repor...
: Security
Depends On: 1308827 1330884
Blocks: 1299618 1323912
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Reported: 2016-01-18 13:48 EST by Martin Prpič
Modified: 2016-11-06 00:27 EDT (History)
5 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
It was found that pcsd did not invalidate cookies on the server side when a user logged out. This could potentially allow an attacker to perform session fixation attacks on pcsd.
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Last Closed: 2016-11-06 00:27:43 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Martin Prpič 2016-01-18 13:48:38 EST
The session cookie is not invalidated on the server side when logging out of the web UI. It is invalidated in the browser's cookie cache but it still works on requests sent by hand.

The cookie is also not invalidated when that same user log in again, meaning all cookies are stored in a pool of valid sessions that are only invalidated when the cookies expires (1 day).

This can allow attackers to perform session fixation attacks.
Comment 1 Ján Rusnačko 2016-01-19 02:24:09 EST
Acknowledgements:

Name: Martin Prpic (Red Hat Product Security)
Comment 2 Martin Prpič 2016-01-19 04:35:49 EST
Statement:

This issue is not currently planned to be addressed in future updates of Red Hat Enterprise Linux 6, as the web UI functionality is disabled by default in pcsd.
Comment 4 Martin Prpič 2016-02-16 03:54:00 EST
Created pcs tracking bugs for this issue:

Affects: fedora-all [bug 1308827]
Comment 5 Fedora Update System 2016-03-02 16:50:23 EST
pcs-0.9.149-2.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
Comment 6 Fedora Update System 2016-03-03 15:25:45 EST
pcs-0.9.149-2.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 8 errata-xmlrpc 2016-11-03 16:56:21 EDT
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:2596 https://rhn.redhat.com/errata/RHSA-2016-2596.html

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