Description
Race condition in the XMPP library in Smack before 4.1.9, when the SecurityMode.required TLS setting has been set, allows man-in-the-middle attackers to bypass TLS protections and trigger use of cleartext for client authentication by stripping the "starttls" feature from a server response.
References (7)
Core 7
Core References
Patch, Third Party Advisory x_refsource_confirm
https://github.com/igniterealtime/Smack/commit/059ee99ba0d5ff7758829acf5a9aeede09ec820b
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J4WXAZ4JVJXHMEDDXJVWJHPVBF5QCTZF/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/95129
Issue Tracking, Vendor Advisory x_refsource_confirm
https://issues.igniterealtime.org/projects/SMACK/issues/SMACK-739
Patch, Third Party Advisory x_refsource_confirm
https://github.com/igniterealtime/Smack/commit/a9d5cd4a611f47123f9561bc5a81a4555fe7cb04
Mailing List, Patch, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/12/22/12
Vendor Advisory x_refsource_confirm
https://community.igniterealtime.org/blogs/ignite/2016/11/22/smack-security-advisory-2016-11-22
Scores
CVSS v3
5.9
EPSS
0.0151
EPSS Percentile
71.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-362
Status
published
Products (3)
fedoraproject/fedora
25
igniterealtime/smack
< 4.1.9
org.igniterealtime.smack/smack-core
0 - 4.1.9Maven
Published
Jan 12, 2017
Tracked Since
Feb 18, 2026