Link following in Hadoop

1) Link following

EUVDB-ID: #VU41036

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 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

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

CPE2.3

• cpe:2.3:a:apache_foundation:hadoop:0.23.0:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:hadoop:0.23.1:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:hadoop:0.23.3:*:*:*:*:*:*:*

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

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.