Vulnerability Description
In Apache Hadoop, The unTar function uses unTarUsingJava function on Windows and the built-in tar utility on Unix and other OSes. As a result, a TAR entry may create a symlink under the expected extraction directory which points to an external directory. A subsequent TAR entry may extract an arbitrary file into the external directory using the symlink name. This however would be caught by the same targetDirPath check on Unix because of the getCanonicalPath call. However on Windows, getCanonicalPath doesn't resolve symbolic links, which bypasses the check. unpackEntries during TAR extraction follows symbolic links which allows writing outside expected base directory on Windows. This was addressed in Apache Hadoop 3.2.3
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apache | Hadoop | < 3.2.3 |
| Microsoft | Windows | - |
Related Weaknesses (CWE)
References
- https://lists.apache.org/thread/hslo7wzw2449gv1jyjk8g6ttd7935fyzExploitVendor Advisory
- https://security.netapp.com/advisory/ntap-20220519-0004/Third Party Advisory
- https://lists.apache.org/thread/hslo7wzw2449gv1jyjk8g6ttd7935fyzExploitVendor Advisory
- https://security.netapp.com/advisory/ntap-20220519-0004/Third Party Advisory
FAQ
What is CVE-2022-26612?
CVE-2022-26612 is a vulnerability with a CVSS score of 9.8 (CRITICAL). In Apache Hadoop, The unTar function uses unTarUsingJava function on Windows and the built-in tar utility on Unix and other OSes. As a result, a TAR entry may create a symlink under the expected extra...
How severe is CVE-2022-26612?
CVE-2022-26612 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2022-26612?
Check the references section above for vendor advisories and patch information. Affected products include: Apache Hadoop, Microsoft Windows.