Vulnerability Details : CVE-2013-5709
The authentication implementation in the web server on Siemens SCALANCE X-200 switches with firmware before 5.0.0 does not use a sufficient source of entropy for generating values of random numbers, which makes it easier for remote attackers to hijack sessions by predicting a value.
Products affected by CVE-2013-5709
- cpe:2.3:h:siemens:scalance_x204irt:-:-:pro:*:*:*:*:*
- cpe:2.3:h:siemens:scalance_x204irt:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:scalance_x202-2irt:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:scalance_x202-2p_irt:-:-:pro:*:*:*:*:*
- cpe:2.3:h:siemens:scalance_x202-2p_irt:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:scalance_x201-3p_irt:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:scalance_x201-3p_irt:-:-:pro:*:*:*:*:*
- cpe:2.3:h:siemens:scalance_x200-4p_irt:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x-200_series_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_x-200_series_firmware:4.3:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:scalance_x-200:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:scalance_xf-200:-:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:scalance_x-200rna:-:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2013-5709
1.79%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 81 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2013-5709
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
8.3
|
HIGH | AV:N/AC:M/Au:N/C:P/I:P/A:C |
8.6
|
8.5
|
NIST |
CWE ids for CVE-2013-5709
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2013-5709
-
http://ics-cert.us-cert.gov/advisories/ICSA-13-254-01
Siemens SCALANCE X-200 Web Hijack Vulnerability | CISAUS Government Resource
-
https://cert-portal.siemens.com/productcert/pdf/ssa-850708.pdf
-
http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-850708.pdf
Vendor Advisory
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