CVE-2020-28395
"Siemens SCALANCE Private Key Vulnerability"
Description
A vulnerability has been identified in SCALANCE X-200RNA switch family (All versions < V3.2.7), SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions < V4.1.0). Devices do not create a new unique private key after factory reset. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic.
INFO
Published Date :
Jan. 12, 2021, 9:15 p.m.
Last Modified :
Dec. 13, 2022, 5:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.2
Affected Products
The following products are affected by CVE-2020-28395
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-28395.
| URL | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf | Vendor Advisory |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-012-02 | Third Party Advisory US Government Resource Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-28395 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-28395 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Dec. 13, 2022
Action Type Old Value New Value Changed Description A vulnerability has been identified in SCALANCE X-200RNA switch family (All versions < V3.2.7), SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions < V4.1.0). Devices do not create a new unique private key after factory reset. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic. A vulnerability has been identified in SCALANCE X-200RNA switch family (All versions < V3.2.7), SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions < V4.1.0). Devices do not create a new unique private key after factory reset. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic. -
CVE Modified by [email protected]
Dec. 13, 2022
Action Type Old Value New Value Changed Description A vulnerability has been identified in SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions < V4.1.0). Devices do not create a new unique private key after factory reset. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic. A vulnerability has been identified in SCALANCE X-200RNA switch family (All versions < V3.2.7), SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions < V4.1.0). Devices do not create a new unique private key after factory reset. An attacker could leverage this situation to a man-in-the-middle situation and decrypt previously captured traffic. -
Modified Analysis by [email protected]
Mar. 26, 2021
Action Type Old Value New Value -
CVE Modified by [email protected]
Mar. 18, 2021
Action Type Old Value New Value Removed Reference https://www.zerodayinitiative.com/advisories/ZDI-21-061/ [Not Applicable] -
Initial Analysis by [email protected]
Jan. 20, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf Vendor Advisory Changed Reference Type https://us-cert.cisa.gov/ics/advisories/icsa-21-012-02 No Types Assigned https://us-cert.cisa.gov/ics/advisories/icsa-21-012-02 Third Party Advisory, US Government Resource, Vendor Advisory Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-21-061/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-21-061/ Not Applicable Added CWE NIST CWE-798 Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xr324-12m_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.0 OR cpe:2.3:h:siemens:scalance_xr324-12m:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xr324-12m_ts_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.0 OR cpe:2.3:h:siemens:scalance_xr324-12m_ts:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xr324-4m_eec_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.0 OR cpe:2.3:h:siemens:scalance_xr324-4m_eec:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xr324-4m_poe_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.0 OR cpe:2.3:h:siemens:scalance_xr324-4m_poe:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xr324-4m_poe_ts_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.0 OR cpe:2.3:h:siemens:scalance_xr324-4m_poe_ts:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xr324wg_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.0 OR cpe:2.3:h:siemens:scalance_xr324wg:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xr326-2c_poe_wg_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.0 OR cpe:2.3:h:siemens:scalance_xr326-2c_poe_wg:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xr328-4c_wg_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 4.1.0 OR cpe:2.3:h:siemens:scalance_xr328-4c_wg:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 14, 2021
Action Type Old Value New Value Added Reference https://www.zerodayinitiative.com/advisories/ZDI-21-061/ [No Types Assigned] -
CVE Modified by [email protected]
Jan. 14, 2021
Action Type Old Value New Value Added Reference https://us-cert.cisa.gov/ics/advisories/icsa-21-012-02 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-28395 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-28395
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.03%
score
0.39529
percentile