CVE-2016-10027

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.

Score

CVSS 3.1 5.9 Medium

Status

Modified - cve@mitre.org

Published

2017-01-12

Last modified

2024-08-06

Weaknesses

CWE-362

Affected products

• Fedora (Fedoraproject)
• Smack (Igniterealtime)

References

• http://www.openwall.com/lists/oss-security/2016/12/22/12
• http://www.securityfocus.com/bid/95129
• https://community.igniterealtime.org/blogs/ignite/2016/11/22/smack-security-advisory-2016-11-22
• https://github.com/igniterealtime/Smack/commit/059ee99ba0d5ff7758829acf5a9aeede09ec820b
• https://github.com/igniterealtime/Smack/commit/a9d5cd4a611f47123f9561bc5a81a4555fe7cb04
• https://issues.igniterealtime.org/projects/SMACK/issues/SMACK-739
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J4WXAZ4JVJXHMEDDXJVWJH…