#VU43888 Cryptographic issues in Hadoop - CVE-2012-3376

Vulnerability identifier: #VU43888

Vulnerability risk: Medium

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

CVE-ID: CVE-2012-3376

CWE-ID: CWE-310

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 read and manipulate data.

DataNodes in Apache Hadoop 2.0.0 alpha does not check the BlockTokens of clients when Kerberos is enabled and the DataNode has checked out the same BlockPool twice from a NodeName, which might allow remote clients to read arbitrary blocks, write to blocks to which they only have read access, and have other unspecified impacts.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Hadoop: 2.0.0

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External links
https://archives.neohapsis.com/archives/bugtraq/2012-07/0049.html
https://www.securityfocus.com/bid/54358
https://www.cloudera.com/documentation/other/security-bulletins/topics/csb_topic_1.html

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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.