Bug 1406744 (CVE-2016-0736)

Summary:	CVE-2016-0736 httpd: Padding Oracle in Apache mod_session_crypto
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	apmukher, bbaranow, bkundal, bmaxwell, carnil, cdewolf, csutherl, dandread, darran.lofthouse, dosoudil, fnasser, gzaronik, hhorak, huwang, jason.greene, jawilson, jboss-set, jclere, jdoyle, jkaluza, jorton, lgao, luhliari, mbabacek, mdshaikh, me, mfrodl, mturk, myarboro, pahan, pgier, pragshar, psakar, pslavice, rmeggins, rnetuka, rsvoboda, sardella, twalsh, vtunka, weli
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	httpd 2.4.25	Doc Type:	If docs needed, set a value
Doc Text:	It was discovered that the mod_session_crypto module of httpd did not use any mechanisms to verify integrity of the encrypted session data stored in the user's browser. A remote attacker could use this flaw to decrypt and modify session data using a padding oracle attack.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-07-13 05:30:56 UTC	Type:	---
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:	1406823, 1412975, 1412976, 1425463
Bug Blocks:	1406828, 1457678

Description Adam Mariš 2016-12-21 11:33:21 UTC

It was found that session data/cookies presented to mod_session_crypto were not authenticated that can lead to deciphering or tampering with a padding oracle attack.

Affects version 2.4.x up to 2.4.23

External References:

https://httpd.apache.org/security/vulnerabilities_24.html#2.4.25
https://www.redteam-pentesting.de/advisories/rt-sa-2016-001.txt

Comment 1 Adam Mariš 2016-12-21 15:04:55 UTC

Created httpd tracking bugs for this issue:

Affects: fedora-all [bug 1406823]

Comment 2 Andrej Nemec 2016-12-23 13:12:02 UTC

References:

http://seclists.org/fulldisclosure/2016/Dec/74

Comment 7 Tomas Hoger 2017-02-21 11:16:05 UTC

Upstream commit:

http://svn.apache.org/viewvc?view=revision&revision=1772925

Comment 9 errata-xmlrpc 2017-04-12 12:31:33 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:0906 https://access.redhat.com/errata/RHSA-2017:0906

Comment 10 errata-xmlrpc 2017-04-26 10:22:51 UTC

This issue has been addressed in the following products:

  Red Hat Software Collections for Red Hat Enterprise Linux 6
  Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
  Red Hat Software Collections for Red Hat Enterprise Linux 7
  Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS

Via RHSA-2017:1161 https://access.redhat.com/errata/RHSA-2017:1161

Comment 11 errata-xmlrpc 2017-06-07 17:45:02 UTC

This issue has been addressed in the following products:

  Red Hat JBoss Core Services

Via RHSA-2017:1415 https://access.redhat.com/errata/RHSA-2017:1415

Comment 12 errata-xmlrpc 2017-06-07 17:56:46 UTC

This issue has been addressed in the following products:

  JBoss Core Services on RHEL 6

Via RHSA-2017:1414 https://access.redhat.com/errata/RHSA-2017:1414

Comment 13 errata-xmlrpc 2017-06-07 17:59:31 UTC

This issue has been addressed in the following products:

  JBoss Core Services on RHEL 7

Via RHSA-2017:1413 https://access.redhat.com/errata/RHSA-2017:1413