9.8 - CVE-2021-23803

Executive Summary

Informations
Name	CVE-2021-23803	First vendor Publication	2021-12-17
Vendor	Cve	Last vendor Modification	2021-12-27

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score	9.8
Base Score	9.8	Environmental Score	9.8
impact SubScore	5.9	Temporal Score	9.8
Exploitabality Sub Score	3.9

Attack Vector	Network	Attack Complexity	Low
Privileges Required	None	User Interaction	None
Scope	Unchanged	Confidentiality Impact	High
Integrity Impact	High	Availability Impact	High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score	7.5	Attack Range	Network
Cvss Impact Score	6.4	Attack Complexity	Low
Cvss Expoit Score	10	Authentication	None Required
Calculate full CVSS 2.0 Vectors scores

Detail

This affects the package latte/latte before 2.10.6. There is a way to bypass allowFunctions that will affect the security of the application. When the template is set to allow/disallow the use of certain functions, adding control characters (x00-x08) after the function will bypass these restrictions.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23803

CPE : Common Platform Enumeration

Type	Description	Count
Application	Nette Latte cpe:2.3:a:nette:latte::::::::	1

Sources (Detail)

Source	Url
CONFIRM	https://github.com/nette/latte/commit/227c86eda9a8a6d060ea8501923e768b6d992210 https://github.com/nette/latte/issues/279 https://snyk.io/vuln/SNYK-PHP-LATTELATTE-1932226