Vulnerabilities > CVE-2022-31163 - Relative Path Traversal vulnerability in multiple products

CVSS 8.1 - HIGH

Attack vector

NETWORK

Attack complexity

HIGH

Privileges required

NONE

Confidentiality impact

HIGH

Integrity impact

HIGH

Availability impact

HIGH

network

high complexity

tzinfo-project

debian

CWE-23

NVD

Published: 2022-07-22

Updated: 2022-10-26

Summary

TZInfo is a Ruby library that provides access to time zone data and allows times to be converted using time zone rules. Versions prior to 0.36.1, as well as those prior to 1.2.10 when used with the Ruby data source tzinfo-data, are vulnerable to relative path traversal. With the Ruby data source, time zones are defined in Ruby files. There is one file per time zone. Time zone files are loaded with `require` on demand. In the affected versions, `TZInfo::Timezone.get` fails to validate time zone identifiers correctly, allowing a new line character within the identifier. With Ruby version 1.9.3 and later, `TZInfo::Timezone.get` can be made to load unintended files with `require`, executing them within the Ruby process. Versions 0.3.61 and 1.2.10 include fixes to correctly validate time zone identifiers. Versions 2.0.0 and later are not vulnerable. Version 0.3.61 can still load arbitrary files from the Ruby load path if their name follows the rules for a valid time zone identifier and the file has a prefix of `tzinfo/definition` within a directory in the load path. Applications should ensure that untrusted files are not placed in a directory on the load path. As a workaround, the time zone identifier can be validated before passing to `TZInfo::Timezone.get` by ensuring it matches the regular expression `\A[A-Za-z0-9+\-_]+(?:\/[A-Za-z0-9+\-_]+)*\z`.

Vulnerable Configurations

Part	Description	Count
Application	Tzinfo_Project Tzinfo Project Tzinfo 1.0.0 Tzinfo Project Tzinfo 1.0.1 Tzinfo Project Tzinfo 1.1.0 Tzinfo Project Tzinfo 1.2.0 Tzinfo Project Tzinfo 1.2.1 Tzinfo Project Tzinfo 1.2.2 Tzinfo Project Tzinfo 1.2.3 Tzinfo Project Tzinfo 1.2.4 Tzinfo Project Tzinfo 1.2.5 Tzinfo Project Tzinfo 1.2.6 Tzinfo Project Tzinfo 1.2.7 Tzinfo Project Tzinfo 1.2.8 Tzinfo Project Tzinfo 1.2.9 Tzinfo Project Tzinfo - Tzinfo Project Tzinfo 0.0.1 Tzinfo Project Tzinfo 0.0.2 Tzinfo Project Tzinfo 0.0.3 Tzinfo Project Tzinfo 0.0.4 Tzinfo Project Tzinfo 0.1.0 Tzinfo Project Tzinfo 0.1.1 Tzinfo Project Tzinfo 0.1.2 Tzinfo Project Tzinfo 0.2.0 Tzinfo Project Tzinfo 0.2.1 Tzinfo Project Tzinfo 0.2.2 Tzinfo Project Tzinfo 0.3.0 Tzinfo Project Tzinfo 0.3.1 Tzinfo Project Tzinfo 0.3.2 Tzinfo Project Tzinfo 0.3.3 Tzinfo Project Tzinfo 0.3.4 Tzinfo Project Tzinfo 0.3.5 Tzinfo Project Tzinfo 0.3.6 Tzinfo Project Tzinfo 0.3.7 Tzinfo Project Tzinfo 0.3.8 Tzinfo Project Tzinfo 0.3.9 Tzinfo Project Tzinfo 0.3.10 Tzinfo Project Tzinfo 0.3.11 Tzinfo Project Tzinfo 0.3.12 Tzinfo Project Tzinfo 0.3.13 Tzinfo Project Tzinfo 0.3.14 Tzinfo Project Tzinfo 0.3.15 Tzinfo Project Tzinfo 0.3.16 Tzinfo Project Tzinfo 0.3.17 Tzinfo Project Tzinfo 0.3.18 Tzinfo Project Tzinfo 0.3.19 Tzinfo Project Tzinfo 0.3.20 Tzinfo Project Tzinfo 0.3.21 Tzinfo Project Tzinfo 0.3.22 Tzinfo Project Tzinfo 0.3.23 Tzinfo Project Tzinfo 0.3.24 Tzinfo Project Tzinfo 0.3.25 Tzinfo Project Tzinfo 0.3.26 Tzinfo Project Tzinfo 0.3.27 Tzinfo Project Tzinfo 0.3.28 Tzinfo Project Tzinfo 0.3.29 Tzinfo Project Tzinfo 0.3.30 Tzinfo Project Tzinfo 0.3.31 Tzinfo Project Tzinfo 0.3.32 Tzinfo Project Tzinfo 0.3.33 Tzinfo Project Tzinfo 0.3.34 Tzinfo Project Tzinfo 0.3.35 Tzinfo Project Tzinfo 0.3.36 Tzinfo Project Tzinfo 0.3.37 Tzinfo Project Tzinfo 0.3.38 Tzinfo Project Tzinfo 0.3.39 Tzinfo Project Tzinfo 0.3.40 Tzinfo Project Tzinfo 0.3.41 Tzinfo Project Tzinfo 0.3.42 Tzinfo Project Tzinfo 0.3.43 Tzinfo Project Tzinfo 0.3.44 Tzinfo Project Tzinfo 0.3.45 Tzinfo Project Tzinfo 0.3.46 Tzinfo Project Tzinfo 0.3.47 Tzinfo Project Tzinfo 0.3.48 Tzinfo Project Tzinfo 0.3.49 Tzinfo Project Tzinfo 0.3.50 Tzinfo Project Tzinfo 0.3.51 Tzinfo Project Tzinfo 0.3.52 Tzinfo Project Tzinfo 0.3.53 Tzinfo Project Tzinfo 0.3.54 Tzinfo Project Tzinfo 0.3.55 Tzinfo Project Tzinfo 0.3.56 Tzinfo Project Tzinfo 0.3.57 Tzinfo Project Tzinfo 0.3.58 Tzinfo Project Tzinfo 0.3.59 Tzinfo Project Tzinfo 0.3.60	85
OS	Debian Debian Debian Linux 10.0	1

Common Weakness Enumeration (CWE)

CWE-23 - Relative Path Traversal

Common Attack Pattern Enumeration and Classification (CAPEC)

File System Function Injection, Content Based
An attack of this type exploits the host's trust in executing remote content including binary files. The files are poisoned with a malicious payload (targeting the file systems accessible by the target software) by the attacker and may be passed through standard channels such as via email, and standard web content like PDF and multimedia files. The attacker exploits known vulnerabilities or handling routines in the target processes. Vulnerabilities of this type have been found in a wide variety of commercial applications from Microsoft Office to Adobe Acrobat and Apple Safari web browser. When the attacker knows the standard handling routines and can identify vulnerabilities and entry points they can be exploited by otherwise seemingly normal content. Once the attack is executed, the attackers' program can access relative directories such as C:\Program Files or other standard system directories to launch further attacks. In a worst case scenario, these programs are combined with other propagation logic and work as a virus.
Manipulating Input to File System Calls
An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

References