Red Hat Bugzilla – Full Text Bug Listing
|Summary:||CVE-2012-6086 zabbix: Improper use of cURL API might lead to improper SSL certificate verification (MiTM)|
|Product:||[Other] Security Response||Reporter:||Jan Lieskovsky <jlieskov>|
|Component:||vulnerability||Assignee:||Red Hat Product Security <security-response-team>|
|Status:||CLOSED ERRATA||QA Contact:|
|Version:||unspecified||CC:||brett.lentz, dan, nelsonab, volker27|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2013-10-08 16:37:48 EDT||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
|Bug Depends On:||892687, 892688, 892763, 893414|
Description Jan Lieskovsky 2013-01-07 10:38:52 EST
A security flaw was found in the way Zabbix, an open-source monitoring solution for IT infrastructure, used (lib)cURL's CURLOPT_SSL_VERIFYHOST variable, when doing certificate validation (value of '1' meaning only check for the existence of a common name was used instead of value '2' - which also checks if the particular common name matches the requested hostname of the server). A rogue service could use this flaw to conduct man-in-the-middle (MiTM) attacks. Upstream bug report:  https://support.zabbix.com/browse/ZBX-5924 References:  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=697443  http://www.openwall.com/lists/oss-security/2013/01/02/1  http://www.openwall.com/lists/oss-security/2013/01/03/1
Comment 1 Jan Lieskovsky 2013-01-07 10:44:47 EST
This issue affects the versions of the zabbix package, as shipped with Fedora release of 16 and 17. Please schedule an update. -- This issue affects the version of the zabbix package, as shipped with Fedora EPEL 6. Please schedule an update. -- This issue does not affect the version of the zabbix package, as shipped with Fedora EPEL 5 (looks certificate verification is not supported yet in v.1.4.7 version, currently shipped with Fedora EPEL 5).
Comment 2 Jan Lieskovsky 2013-01-07 10:45:38 EST
Created zabbix tracking bugs for this issue Affects: fedora-all [bug 892687] Affects: epel-6 [bug 892688]
Comment 5 Volker Fröhlich 2013-01-07 14:05:37 EST
There's a zabbix20 package in EPEL 6 as well.
Comment 6 Jan Lieskovsky 2013-01-09 05:28:28 EST
(In reply to comment #5) > There's a zabbix20 package in EPEL 6 as well. Thank you for pointing out, Volker. Checking that one yet then.
Comment 7 Jan Lieskovsky 2013-01-09 05:35:04 EST
This issue affects the version of the zabbix20 package, as shipped with Fedora EPEL 6. Please schedule an update (once there is final upstream patch available).
Comment 8 Jan Lieskovsky 2013-01-09 05:36:00 EST
Created zabbix20 tracking bugs for this issue Affects: epel-6 [bug 893414]
Comment 10 Vincent Danen 2013-10-08 16:37:48 EDT
This has already been corrected in Fedora and EPEL.