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CVE-2019-5149

Quick assessment

Affected
Wago WAGO PFC200 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.

WAGO PFC 200和WAGO PFC100都是德国WAGO公司的一款可编程逻辑控制器（PLC）。 使用03.00.39(12)版本和03.01.07(13)版本固件的WAGO PFC200和WAGO PFC100中的/etc/lighttpd/mod_fastcgi.conf文件存在资源管理错误漏洞，该漏洞源于默认配置将并存的php-cgi进程限定为两个。攻击者可利用该漏洞导致拒绝服务。

AI Predicted 5.3 Difficulty: Trivial EPSS 1.80% · P78
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I. Basic Information for CVE-2019-5149

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The WBM web application on firmwares prior to 03.02.02 and 03.01.07 on the WAGO PFC100 and PFC2000, respectively, runs on a lighttpd web server and makes use of the FastCGI module, which is intended to provide high performance for all Internet applications without the penalties of Web server APIs. However, the default configuration of this module appears to limit the number of concurrent php-cgi processes to two, which can be abused to cause a denial of service of the entire web server. This affects WAGO PFC200 Firmware version 03.00.39(12) and version 03.01.07(13), and WAGO PFC100 Firmware version 03.00.39(12) and version 03.02.02(14).
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
WAGO PFC 200和PFC100 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WAGO PFC 200和WAGO PFC100都是德国WAGO公司的一款可编程逻辑控制器（PLC）。 使用03.00.39(12)版本和03.01.07(13)版本固件的WAGO PFC200和WAGO PFC100中的/etc/lighttpd/mod_fastcgi.conf文件存在资源管理错误漏洞，该漏洞源于默认配置将并存的php-cgi进程限定为两个。攻击者可利用该漏洞导致拒绝服务。
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
Wago WAGO PFC200 Firmware version 03.00.39(12) -
Wago WAGO PFC100 Firmware version 03.00.39(12) -

II. Public POCs for CVE-2019-5149

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III. Intelligence Information for CVE-2019-5149

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Other References for CVE-2019-5149 (1)

Same Patch Batch · Wago · 2020-03-10 · 15 CVEs total

CVE-2019-5106 WAGO e!COCKPIT 加密问题漏洞
CVE-2019-5107 WAGO e!COCKPIT 安全漏洞
CVE-2019-5134 WAGO PFC100和PFC200 信息泄露漏洞
CVE-2019-5135 WAGO PFC100和WAGO PFC 200 安全漏洞
CVE-2019-5155 WAGO PFC 200 操作系统命令注入漏洞
CVE-2019-5156 WAGO PFC 200 操作系统命令注入漏洞
CVE-2019-5157 WAGO PFC200 操作系统命令注入漏洞
CVE-2019-5158 WAGO e!COCKPIT 信任管理问题漏洞
CVE-2019-5159 WAGO e!COCKPIT 输入验证错误漏洞
CVE-2019-5160 WAGO PFC200 输入验证错误漏洞
CVE-2019-5161 WAGO PFC 200 数据伪造问题漏洞
CVE-2019-5166 WAGO PFC 200 缓冲区错误漏洞
CVE-2019-5167 WAGO PFC 200 操作系统命令注入漏洞
CVE-2019-5168 WAGO PFC 200 操作系统命令注入漏洞

IV. Related Vulnerabilities

Same product: WAGO PFC200 Firmware
Same vendor: Wago

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