Bug 1208294 (CVE-2015-1848, CVE-2015-3983) - CVE-2015-1848 CVE-2015-3983 pcs: improper web session variable signing
Summary: CVE-2015-1848 CVE-2015-3983 pcs: improper web session variable signing
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2015-1848, CVE-2015-3983
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: Engineering1211565 Engineering1211566 Engineering1211567 Engineering1211568
Blocks: Embargoed1210268 Embargoed1210464
TreeView+ depends on / blocked
 
Reported: 2015-04-01 21:31 UTC by Martin Prpič
Modified: 2023-05-12 23:32 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
It was found that the pcs daemon did not sign cookies containing session data that were sent to clients connecting via the pcsd web UI. A remote attacker could use this flaw to forge cookies and bypass authorization checks, possibly gaining elevated privileges in the pcsd web UI.
Clone Of:
Environment:
Last Closed: 2015-05-12 21:25:22 UTC

Attachments (Terms of Use)
secure-cookie.patch (629 bytes, text/plain)
2015-04-01 21:32 UTC, Martin Prpič 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2015:0980 0 normal SHIPPED_LIVE Important: pcs security and bug fix update 2015-05-12 19:44:49 UTC
Red Hat Product Errata RHSA-2015:0990 0 normal SHIPPED_LIVE Important: pcs security and bug fix update 2015-05-12 21:59:13 UTC

Description Martin Prpič 2015-04-01 21:31:39 UTC 
It was found that the pcs daemon did not sign cookies containing session data that were sent to clients connecting via the pcsd web UI. A remote attacker could use this flaw to forge cookies and bypass authorization checks, possibly gaining elevated privileges in the pcsd web UI.
Comment 1 Martin Prpič 2015-04-01 21:32:24 UTC 
Created attachment 1009855 [details]
secure-cookie.patch
Comment 9 Ján Rusnačko 2015-04-13 20:48:33 UTC 
Acknowledgements:

This issue was discovered by Tomas Jelinek of Red Hat.
Comment 13 errata-xmlrpc 2015-05-12 15:45:04 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2015:0980 https://rhn.redhat.com/errata/RHSA-2015-0980.html
Comment 14 errata-xmlrpc 2015-05-12 17:59:26 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2015:0990 https://rhn.redhat.com/errata/RHSA-2015-0990.html
Comment 15 Martin Prpič 2015-05-18 15:12:08 UTC 
MITRE assigned a second CVE for the issue tracked in this bug:

The pcs daemon (pcsd) in PCS 0.9.137 and earlier does not include the HTTPOnly flag in a Set-Cookie header, which makes it easier for remote attackers to obtain potentially sensitive information via script access to this cookie. NOTE: this issue was SPLIT from CVE-2015-1848 per ADT2 due to different vulnerability types.
Comment 16 Fedora Update System 2015-06-04 20:11:29 UTC 
pcs-0.9.115-3.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 17 Fedora Update System 2015-06-04 20:16:27 UTC 
pcs-0.9.137-4.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 18 Fedora Update System 2015-06-04 20:17:56 UTC 
pcs-0.9.139-4.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.
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