CVE-2022-26612 Information

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 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://lists.apache.org/thread/hslo7wzw2449gv1jyjk8g6ttd7935fyz https://security.netapp.com/advisory/ntap-20220519-0004/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8