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CVE-2023-32722— Stack-buffer Overflow in library module zbxjson

Quick assessment

Affected
Zabbix Zabbix
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Zabbix是Zabbix公司的一套开源的监控系统。该系统支持网络监控、服务器监控、云监控和应用监控等。 Zabbix 6.4.4版本存在安全漏洞，该漏洞源于zabbix/src/libs/zbxjson模块存在缓冲区溢出漏洞。

CVSS 9.6 · Critical EPSS 0.69% · P51

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-32722

Vulnerability Information
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Vulnerability Title
Stack-buffer Overflow in library module zbxjson
Source: CVE Program / CVE List V5
Vulnerability Description
The zabbix/src/libs/zbxjson module is vulnerable to a buffer overflow when parsing JSON files via zbx_json_open.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
Zabbix 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zabbix是Zabbix公司的一套开源的监控系统。该系统支持网络监控、服务器监控、云监控和应用监控等。 Zabbix 6.4.4版本存在安全漏洞，该漏洞源于zabbix/src/libs/zbxjson模块存在缓冲区溢出漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Zabbix Zabbix 6.0.0 ~ 6.0.20 -

II. Public POCs for CVE-2023-32722

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2023-32722

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Other References for CVE-2023-32722 (1)

Same Patch Batch · Zabbix · 2023-10-12 · 5 CVEs total

CVE-2023-29453 9.8 CRITICAL Agent 2 package are built with Go version affected by CVE-2023-24538
CVE-2023-32724 9.1 CRITICAL JavaScript engine memory pointers are directly available for Zabbix users for modification
CVE-2023-32723 8.5 HIGH Inefficient permission check in class CControllerAuthenticationUpdate
CVE-2023-32721 7.6 HIGH Stored XSS in Maps element

IV. Related Vulnerabilities

Same product: Zabbix
Same vendor: Zabbix
Same weakness: CWE-120

V. Comments for CVE-2023-32722

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