Vulnerability identifier: #VU41036

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-3627

CWE-ID: CWE-59

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 non-authenticated attacker to gain access to sensitive information.

The YARN NodeManager daemon in Apache Hadoop 0.23.0 through 0.23.11 and 2.x before 2.5.2, when using Kerberos authentication, allows remote cluster users to change the permissions of certain files to world-readable via a symlink attack in a public tar archive, which is not properly handled during localization, related to distributed cache.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Hadoop: 0.23.0 - 2.5.1

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External links
http://mail-archives.apache.org/mod_mbox/hadoop-general/201411.mbox/%3CCALwhT97dOi04aC3VbekaB+zn2UAS_OZV2EAiP78GmjnMzfp2Ug@mail.gmail.com%3E
http://secunia.com/advisories/60079
http://secunia.com/advisories/60432

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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