Race condition vulnerability in Smack XMPP library allows man-in-the-middle attackers to bypass TLS protections

Race condition vulnerability in Smack XMPP library allows man-in-the-middle attackers to bypass TLS protections

CVE-2016-10027 · MEDIUM Severity

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

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