Smarty up to 3.1.41/4.0.1 Template code injection

Summaryinfo

A vulnerability classified as critical was found in Smarty up to 3.1.41/4.0.1. This affects an unknown part of the component Template Handler. Executing a manipulation can lead to code injection. The identification of this vulnerability is CVE-2021-29454. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Smarty up to 3.1.41/4.0.1 (Customer Relationship Management System) and classified as critical. This vulnerability affects an unknown function of the component Template Handler. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 01/11/2022 as GHSA-29gp-2c3m-3j6m. The advisory is available at github.com. This vulnerability was named CVE-2021-29454 since 03/30/2021. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 211188 (Fedora 37 : php-Smarty (2022-d5fc9dcdd7)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 3.1.42 or 4.0.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (211188) and EUVD (EUVD-2022-0423). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Customer Relationship Management System

Name

• Smarty

Version

• 3.1.0
• 3.1.1
• 3.1.2
• 3.1.3
• 3.1.4
• 3.1.5
• 3.1.6
• 3.1.7
• 3.1.8
• 3.1.9
• 3.1.10
• 3.1.11
• 3.1.12
• 3.1.13
• 3.1.14
• 3.1.15
• 3.1.16
• 3.1.17
• 3.1.18
• 3.1.19
• 3.1.20
• 3.1.21
• 3.1.22
• 3.1.23
• 3.1.24
• 3.1.25
• 3.1.26
• 3.1.27
• 3.1.28
• 3.1.29
• 3.1.30
• 3.1.31
• 3.1.32
• 3.1.33
• 3.1.34
• 3.1.35
• 3.1.36
• 3.1.37
• 3.1.38
• 3.1.39
• 3.1.40
• 3.1.41
• 4.0.0
• 4.0.1

License

• commercial

CPE 2.3info

• 🔍
• 🔍
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CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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