CVE-2019-0191 Information

Description

Apache Karaf kar deployer reads .kar archives and extracts the paths from the \repository/\ and \resources/\ entries in the zip file. It then writes out the content of these paths to the Karaf repo and resources directories. However it doesn’t do any validation on the paths in the zip file. This means that a malicious user could craft a .kar file with ..\ directory names and break out of the directories to write arbitrary content to the filesystem. This is the \Zip-slip\ vulnerability - https://snyk.io/research/zip-slip-vulnerability. This vulnerability is low if the Karaf process user has limited permission on the filesystem. Any Apache Karaf releases prior 4.2.3 is impacted.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Reference

http://www.securityfocus.com/bid/107462 https://lists.apache.org/thread.html/6856aa7ed7dd805eaf65d0e5e95027dda3b2307aacd1ab4a838c5cd1@3Cuser.karaf.apache.org3E https://lists.apache.org/thread.html/cef9a2d4b547625e5214684283ac5c59c9d9740e092e777dc3f85070@3Ccommits.karaf.apache.org3E

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

HIGH

Base Score

NONE

Base Severity

6.5