CVE-2012-4449

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-10-30 · updated 2026-06-16
Weakness: CWE-327

Description

Apache Hadoop before 0.23.4, 1.x before 1.0.4, and 2.x before 2.0.2 generate token passwords using a 20-bit secret when Kerberos security features are enabled, which makes it easier for context-dependent attackers to crack secret keys via a brute-force attack.

Affected products

Apache Software Foundation Apache Hadoop: through 0.23.3; 1.0.0, 1.0.1, 1.0.2, 1.0.3, 2.0.0-alpha, 2.0.1-alpha (+1)

References

http://mail-archives.apache.org/mod_mbox/hadoop-general/201210.mbox/%3CCA+z3+9FYdPmzBEaMZ71SUqzRx=eU=o4mSHUsbrpzgR9X_F1c0Q%40mail.gmail.com%3E
https://www.cloudera.com/documentation/other/security-bulletins/topics/csb_topic_1.html#topic_1_0
http://mail-archives.apache.org/mod_mbox/hadoop-general/201210.mbox/%3CCA+z3+9FYdPmzBEaMZ71SUqzRx=eU=o4mSHUsbrpzgR9X_F1c0Q%40mail.gmail.com%3E
https://www.cloudera.com/documentation/other/security-bulletins/topics/csb_topic_1.html#topic_1_0

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