Vulnerability CVE-2012-3376
Published: 2012-07-12   Modified: 2012-07-17

Description:
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.

See advisories in our WLB2 database:
Topic
Author
Date
Low
Apache Hadoop HDFS Information Disclosure
Aaron T. Myers
10.07.2012

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Apache -> Hadoop 

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