CVE-2020-9492 Improper Privilege Management in Apache Hadoop

What is CVE-2020-9492?

CVE-2020-9492 is a high-severity vulnerability in Apache Hadoop, published on 26 Jan 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

In Apache Hadoop 3.2.0 to 3.2.1, 3.0.0-alpha1 to 3.1.3, and 2.0.0-alpha to 2.10.0, WebHDFS client might send SPNEGO authorization header to remote URL without proper verification.

Weakness: CWE-863

Which versions are affected by CVE-2020-9492?

7 open source packages ship an affected version, including org.apache.hadoop:hadoop-common and solr. It affects 3 products.

Products include Apache Hadoop, Apache Solr, Oracle Financial Services Crime and Compliance Management Studio.

How do I fix CVE-2020-9492?

Upgrade org.apache.hadoop:hadoop-common to a fixed version for your release line: 2.10.1, 3.1.4 or 3.2.2.

Is CVE-2020-9492 being exploited?

There is no known exploitation of CVE-2020-9492 in the wild and no public exploit code.

Other vulnerabilities in Apache Hadoop

• CVE-2022-25168 Command injection in org.apache.hadoop.fs.FileUtil.unTarUsingTar Critical 9.8
• CVE-2021-37404 Heap buffer overflow in libhdfs native library Critical 9.8
• CVE-2022-26612 Arbitrary file write in FileUtil#unpackEntries on Windows Critical 9.8
• CVE-2019-17195 Improper Check for Unusual or Exceptional Conditions in Connect2id Nimbus JOSE+JWT Critical 9.8
• CVE-2017-15718 Exposure of Sensitive Information in Hadoop Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-solr-2020-9492, GHSA-f8vc-wfc8-hxqh, OESA-2021-1201.