Vulnerability identifier: #VU18114

Vulnerability risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-11767

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Hadoop
Server applications / Frameworks for developing and running applications

Vendor: Apache Foundation

Description

The vulnerability allows a remote attacker to gain unauthorized access to sensitive information.

The vulnerability exists due to improper access restrictions within the Key Management Server (KMS) implementation in Apache Hadoop when non-default group mapping is used. A remote authenticated user can perform otherwise restricted actions with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Hadoop: 2.7.5 - 2.9.1

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External links
http://lists.apache.org/thread.html/246cf223e7dc0c1dff90b78dccb6c3fe94e1a044dbf98e2333393302@%3Ccommon-issues.hadoop.apache.org%3E
http://lists.apache.org/thread.html/5a44590b4eedc5e25f5bd3081d1631b52c174b5b99157f7950ddc270@%3Ccommon-dev.hadoop.apache.org%3E
http://lists.apache.org/thread.html/5fb771f66946dd5c99a8a5713347c24873846f555d716f9ac17bccca@%3Cgeneral.hadoop.apache.org%3E

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.