High severity · published Mar 11, 2020
CVE-2019-5149
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…
7.5
CVSS
1.8%
EPSS
No
On KEV
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).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.8% · higher than 78% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PF
Pfc100 Firmware · Wago
03.00.39(12); 03.01.07(13) · source: NVD
PF
Pfc200 Firmware · Wago
03.00.39(12); 03.01.07(13) · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-5149
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-5149
Exploit
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0939
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