Description

This is an information disclosure vulnerability in Apache Hadoop before 2.6.4 and 2.7.x before 2.7.2 in the short-circuit reads feature of HDFS. A local user on an HDFS DataNode may be able to craft a block token that grants unauthorized read access to random files by guessing certain fields in the token.

Remediation

References

http://seclists.org/oss-sec/2016/q4/698

http://www.securityfocus.com/bid/94950

https://lists.apache.org/thread.html/r66de86b9a608c1da70b2d27d765c11ec88edf6e5dd6f379ab33e072a%40%3Cuser.flink.apache.org%3E

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Severity

Medium

Classification

CWE-200 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Tags

Mailing List Third Party Advisory VDB Entry