Information disclosure in Apache Hadoop

1) Information disclosure

EUVDB-ID: #VU17254

Risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-1296

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to HDFS exposes extended attribute key/value pairs during listXAttrs, verifying only path-level search access to the directory rather than path-level read permission to the referent. A remote attacker can sensitive data in extended attributes, such as HDFS encryption secrets.

Mitigation

The vulnerability has been addressed in the versions 3.0.1, 2.9.1, 2.8.4, 2.7.6.

Vulnerable software versions

Hadoop: 2.7 - 3.0.0

CPE2.3

• cpe:2.3:a:apache_foundation:hadoop:2.7:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:hadoop:2.7.1:*:*:*:*:*:*:*
• cpe:2.3:a:apache_foundation:hadoop:2.7.2:*:*:*:*:*:*:*

External links

https://hadoop.apache.org/cve_list.html#cve-2018-8009-http-cve-mitre-org-cgi-bin-cvename-cgi-name-cve-2018-8009-zip-slip-impact-on-apache-hadoop

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.