Vulnerability Details : CVE-2019-13921
A vulnerability has been identified in SIMATIC WinAC RTX (F) 2010 (All versions < SP3 Update 1). Affected versions of the software contain a vulnerability that could allow an unauthenticated attacker to trigger a denial-of-service condition. The vulnerability can be triggered if a large HTTP request is sent to the executing service. The security vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no system privileges and no user interaction. An attacker could use the vulnerability to compromise availability of the service provided by the software.
Vulnerability category: Denial of service
Products affected by CVE-2019-13921
- cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:-:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:-:update_1:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:-:update_2:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:-:update_3:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:sp1:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:sp2:-:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:sp2:update_1:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:sp2:update_2:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:sp2:update_3:*:*:*:*:*:*
- cpe:2.3:a:siemens:simatic_winac_rtx_\(f\)_2010:sp2:update_4:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-13921
0.44%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-13921
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
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-2019-13921
-
The product does not properly control the allocation and maintenance of a limited resource.Assigned by: nvd@nist.gov (Primary)
-
The product's resource pool is not large enough to handle peak demand, which allows an attacker to prevent others from accessing the resource by using a (relatively) large number of requests for resources.Assigned by: productcert@siemens.com (Secondary)
References for CVE-2019-13921
-
https://cert-portal.siemens.com/productcert/pdf/ssa-878278.pdf
Vendor Advisory
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