Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2023-22913

Quick assessment

Affected
Zyxel USG FLEX series firmware
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.

Zyxel USG FLEX是中国合勤（Zyxel）公司的一款防火墙。提供灵活的 VPN 选项（IPsec、SSL 或 L2TP），为远程工作和管理提供灵活的安全远程访问。 Zyxel USG FLEX 系列 4.50 至 5.35固件版本、VPN 系列 4.30 至 5.35 固件版本存在安全漏洞，该漏洞源于account_operator.cgi CGI 程序中存在通过身份验证后命令注入问题。攻击者利用该漏洞可以修改设备配置数据，从而导致在受影响的设备上出现拒绝服务 (DoS) 情况。

CVSS 8.1 · High EPSS 1.29% · P69
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2023-22913

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A post-authentication command injection vulnerability in the “account_operator.cgi” CGI program of Zyxel USG FLEX series firmware versions 4.50 through 5.35, and VPN series firmware versions 4.30 through 5.35, which could allow a remote authenticated attacker to modify device configuration data, resulting in denial-of-service (DoS) conditions on an affected device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Zyxel USG FLEX 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Zyxel USG FLEX是中国合勤（Zyxel）公司的一款防火墙。提供灵活的 VPN 选项（IPsec、SSL 或 L2TP），为远程工作和管理提供灵活的安全远程访问。 Zyxel USG FLEX 系列 4.50 至 5.35固件版本、VPN 系列 4.30 至 5.35 固件版本存在安全漏洞，该漏洞源于account_operator.cgi CGI 程序中存在通过身份验证后命令注入问题。攻击者利用该漏洞可以修改设备配置数据，从而导致在受影响的设备上出现拒绝服务 (DoS) 情况。
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
Zyxel USG FLEX series firmware 4.50 through 5.35 -
Zyxel VPN series firmware 4.30 through 5.35 -

II. Public POCs for CVE-2023-22913

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2023-22913

请登录查看更多情报信息。

Other References for CVE-2023-22913 (1)

Same Patch Batch · Zyxel · 2023-04-24 · 8 CVEs total

CVE-2023-27991 8.8 HIGH Zyxel ATP 操作系统命令注入漏洞
CVE-2023-22916 8.1 HIGH Zyxel ATP 安全漏洞
CVE-2023-22917 7.5 HIGH Zyxel ATP 安全漏洞
CVE-2023-22915 7.5 HIGH Zyxel USG FLEX 安全漏洞
CVE-2023-22914 7.2 HIGH Zyxel USG FLEX 路径遍历漏洞
CVE-2023-22918 6.5 MEDIUM Zyxel ATP 安全漏洞
CVE-2023-27990 4.8 MEDIUM Zyxel ATP 跨站脚本漏洞

IV. Related Vulnerabilities

Same product: USG FLEX series firmware
Same vendor: Zyxel
Same weakness: CWE-77

V. Comments for CVE-2023-22913

No comments yet

Leave a comment