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Security Advisory

CVE-2021-26634 | Maxboard multiple vulnerabilities2022.05.30
□ Overview
 o MaxBoard released security update to address a number of vulnerabilities, such as SQL injection, File upload and etc in MaxBoard.
Vulnerability
Vulnerability Type Impact Severity CVSS Score CVE ID
SQL injection,
authentication bypass,
file upload
arbitrary code execution,
web shell upload,
privilege escalation
Critical 9.8 CVE-2021-26634

□ Description
 o SQL-injection and file upload attacks are possible due to insufficient validation of input values in some parameters and variables of files compromising Maxboard, which may lead to arbitrary code execution or privilege escalation.
 o Attackers can use these vulnerabilities to perform attacks such as stealing server management rights using a web shell.

□ Affected Product
Affected Product
Product Version Platform
MaxBoard prior of 1.9.5.1 Linux

□ Solution
 o Update software over MaxBoard 1.9.6 version or higher.

□ Reference
[1] https://maxb.kr/

□ Acknowledgements
 o Thanks to Seungjin Baek for reporting this vulnerability.
 

□ 작성 : 침해사고분석단 취약점분석팀