CVE-2012-4449 Use of a Broken or Risky Cryptographic Algorithm in Apache Hadoop

Critical 9.8 Published Updated

Attackers can brute-force weak 20-bit token passwords in Hadoop Kerberos configurations to bypass security controls.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2012-4449?

CVE-2012-4449 is a critical vulnerability in n/a, published on 30 Oct 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-327

Which versions are affected by CVE-2012-4449?

6 open source packages ship an affected version, including org.apache.hadoop:hadoop-client. It affects 1 product.

PackageAffectedFixed in
org.apache.hadoop:hadoop-client MavenAll versions0.23.4
org.apache.hadoop:hadoop-client MavenAll versions0.23.4
org.apache.hadoop:hadoop-client MavenFrom 1.0.01.0.4
org.apache.hadoop:hadoop-client MavenFrom 1.0.01.0.4
org.apache.hadoop:hadoop-client MavenFrom 2.0.02.0.2
org.apache.hadoop:hadoop-client MavenFrom 2.0.02.0.2

Products include Apache Hadoop.

How do I fix CVE-2012-4449?

Upgrade org.apache.hadoop:hadoop-client to a fixed version for your release line: 0.23.4, 1.0.4 or 2.0.2.

Is CVE-2012-4449 being exploited?

There is no known exploitation of CVE-2012-4449 in the wild and no public exploit code.

Sources

Also known as GHSA-q46v-cj5v-hvg6.

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