CVE-2021-29454

Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.42 and 4.0.2, template authors could run arbitrary PHP code by crafting a malicious math string. If a math string was passed through as user provided data to the math function, external users could run arbitrary PHP code by crafting a malicious math string. Users should upgrade to version 3.1.42 or 4.0.2 to receive a patch.

CVSS v3.0 8.8 HIGH
CVSS v2.0 6.5 MEDIUM

8.8^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/smarty-php/smarty/commit/215d81a9fa3cd63d82fb3ab56ecaf97cf1e7db71	Patch Third Party Advisory
https://github.com/smarty-php/smarty/security/advisories/GHSA-29gp-2c3m-3j6m	Third Party Advisory
https://packagist.org/packages/smarty/smarty	Product Third Party Advisory
https://github.com/smarty-php/smarty/releases/tag/v3.1.42	Release Notes Third Party Advisory
https://www.smarty.net/docs/en/language.function.math.tpl	Vendor Advisory
https://github.com/smarty-php/smarty/releases/tag/v4.0.2	Release Notes Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/05/msg00005.html	Mailing List Third Party Advisory
https://www.debian.org/security/2022/dsa-5151

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:smarty:smarty::::::::
	cpe:2.3:a:smarty:smarty::::::::

Configuration 2 (hide)

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Information

Published : 2022-01-10 20:15

Updated : 2022-06-02 14:15

NVD link : CVE-2021-29454

Mitre link : CVE-2021-29454

JSON object : View

Products Affected

smarty

smarty

debian

debian_linux

CWE

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

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