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PublicDateAtUSN: 2018-04-18
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Candidate: CVE-2018-2800
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https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-2800
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http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
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https://usn.ubuntu.com/usn/usn-3644-1
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https://usn.ubuntu.com/usn/usn-3691-1
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Vulnerability in the Java SE, JRockit component of Oracle Java SE
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(subcomponent: RMI). Supported versions that are affected are Java SE:
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6u181, 7u171 and 8u162; JRockit: R28.3.17. Difficult to exploit
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vulnerability allows unauthenticated attacker with network access via
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multiple protocols to compromise Java SE, JRockit. Successful attacks
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require human interaction from a person other than the attacker. Successful
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attacks of this vulnerability can result in unauthorized update, insert or
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delete access to some of Java SE, JRockit accessible data as well as
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unauthorized read access to a subset of Java SE, JRockit accessible data.
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Note: This vulnerability can only be exploited by supplying data to APIs in
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the specified Component without using Untrusted Java Web Start applications
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or Untrusted Java applets, such as through a web service. CVSS 3.0 Base
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Score 4.2 (Confidentiality and Integrity impacts). CVSS Vector:
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(CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N).
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Moritz Bechler discovered that the RMI component of OpenJDK enabled
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HTTP transport for RMI servers by default. A remote attacker could use
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this to gain access to restricted services.
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sbeattie> Oracle note on this issue:
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Server side HTTP-tunneled RMI connections have been disabled
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by default in this release. This behavior can be reverted by
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setting the runtime property sun.rmi.server.disableIncomingHttp
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property to false. Note, this should not be confused with the
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sun.rmi.server.disableHttp property, which disables HTTP-tunneling
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on the client side and is false by default.
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Discovered-by: Moritz Bechler
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upstream_openjdk-7: needs-triage
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precise/esm_openjdk-7: DNE
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trusty_openjdk-7: released (7u181-2.6.14-0ubuntu0.1)
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upstream_openjdk-6: needs-triage
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precise/esm_openjdk-6: DNE
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trusty_openjdk-6: needed
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upstream_openjdk-8: needs-triage
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precise/esm_openjdk-8: DNE
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xenial_openjdk-8: released (8u171-b11-0ubuntu0.16.04.1)
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artful_openjdk-8: released (8u171-b11-0ubuntu0.17.10.1)
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bionic_openjdk-8: released (8u171-b11-0ubuntu0.18.04.1)
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devel_openjdk-8: not-affected (8u171-b11-1)