CVE-2018-17187 Information

Description

The Apache Qpid Proton-J transport includes an optional wrapper layer to perform TLS enabled by use of the ’transport.ssl(…)’ methods. Unless a verification mode was explicitly configured client and server modes previously defaulted as documented to not verifying a peer certificate with options to configure this explicitly or select a certificate verification mode with or without hostname verification being performed. The latter hostname verifying mode was not implemented in Apache Qpid Proton-J versions 0.3 to 0.29.0 with attempts to use it resulting in an exception. This left only the option to verify the certificate is trusted leaving such a client vulnerable to Man In The Middle (MITM) attack. Uses of the Proton-J protocol engine which do not utilise the optional transport TLS wrapper are not impacted e.g. usage within Qpid JMS. Uses of Proton-J utilising the optional transport TLS wrapper layer that wish to enable hostname verification must be upgraded to version 0.30.0 or later and utilise the VerifyModeVERIFY_PEER_NAME configuration which is now the default for client mode usage unless configured otherwise.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Reference

http://www.securityfocus.com/bid/105935 https://issues.apache.org/jira/browse/PROTON-1962 https://mail-archives.apache.org/mod_mbox/qpid-users/201811.mbox/3CCAFitrpQSV73Vz7rJYfLJK7gvEymZSCR5ooWUeU8j4jzRydk-eg40mail.gmail.com3E https://qpid.apache.org/cves/CVE-2018-17187.html

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.4