Vulnerability Details : 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 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).
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2019-5149
Probability of exploitation activity in the next 30 days: 0.12%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 44 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2019-5149
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2019-5149
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-5149
-
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0939
TALOS-2019-0939 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Third Party Advisory
Products affected by CVE-2019-5149
- cpe:2.3:o:wago:pfc200_firmware:03.00.39\(12\):*:*:*:*:*:*:*
- cpe:2.3:o:wago:pfc200_firmware:03.01.07\(13\):*:*:*:*:*:*:*
- cpe:2.3:o:wago:pfc100_firmware:03.00.39\(12\):*:*:*:*:*:*:*
- cpe:2.3:o:wago:pfc100_firmware:03.01.07\(13\):*:*:*:*:*:*:*