Bug 1403790 (CVE-2016-9928) - CVE-2016-9928 mcabber: remote attackers can modify the roster and intercept messages via a crafted roster-push IQ stanza
Summary: CVE-2016-9928 mcabber: remote attackers can modify the roster and intercept m...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: CVE-2016-9928
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: 1403792
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-12-12 11:33 UTC by Martin Prpič
Modified: 2019-09-29 14:02 UTC (History)
3 users (show)

Fixed In Version:
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Last Closed: 2016-12-12 14:17:52 UTC
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Description Martin Prpič 2016-12-12 11:33:28 UTC 
It was discovered that MCabber versions 1.0.3 and before are vulnerable to an attack identical to Gajim's CVE-2015-8688 that can lead to a malicious actor MITMing a conversation, or adding themselves as an entity on a third parties roster (thereby granting themselves the associated privileges).

Upstream patch:

https://bitbucket.org/McKael/mcabber-crew/commits/6e1ead98930d7dd0a520ad17c720ae4908429033/raw

References:

https://gultsch.de/gajim_roster_push_and_message_interception.html
http://seclists.org/oss-sec/2016/q4/653
Comment 1 Martin Prpič 2016-12-12 11:35:15 UTC 
Created mcabber tracking bugs for this issue:

Affects: fedora-all [bug 1403792]
Comment 2 Fabio Alessandro Locati 2016-12-12 14:17:52 UTC 
mcabber 1.0.4 has already arrived to stable in F23, F24, F25, rawhide
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