Bug 1665953 (CVE-2019-2426)

Summary: CVE-2019-2426 OpenJDK: transparent NTLM authentication enabled by default (Networking, 8209094)
Product: [Other] Security Response Reporter: Tomas Hoger <thoger>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: abergmann, ahughes, bkearney, dbhole, ggainey, java-qa, jvanek, meissner, security-response-team, tlestach
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Hardware: All   
OS: Linux   
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Last Closed: 2019-01-14 14:44:48 UTC Type: ---
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Bug Blocks: 1661579    

Description Tomas Hoger 2019-01-14 14:43:33 UTC 
It was discovered that the HTTP client implementation in the Networking component of OpenJDK enabled transparent NTLM authentication by default.  This could lead to an information leak in communication with untrusted servers.

The fix introduces a new network property jdk.http.ntlm.transparentAuth, which can be used to control the use of the transparent NTLM authentication, and that can take values of disabled (default), allHosts, or trustedHosts.

This issue only affected version of OpenJDK for Microsoft Windows, versions for Linux were not affected.
Comment 1 Tomas Hoger 2019-01-15 22:07:58 UTC 
Public now via Oracle CPU January 2019:

https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html#AppendixJAVA

Fixed in Oracle Java 11.0.2, 8u201, and 7u211.
Comment 2 Tomas Hoger 2019-02-13 16:30:02 UTC 
OpenJDK-8 upstream commit:
http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/rev/d0d0b71e3a2a

OpenJDK-11 upstream commit:
http://hg.openjdk.java.net/jdk-updates/jdk11u/rev/12084427f1e2