CVE-2020-28393
Sizarre Critical SCALANCE XM-400/XR-500 OSPF Denial-of-Service
Description
An unauthenticated remote attacker could create a permanent denial-of-service condition by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected device on the SCALANCE XM-400, XR-500 (All versions prior to v6.4).
INFO
Published Date :
May 12, 2021, 2:15 p.m.
Last Modified :
May 21, 2021, 2:03 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2020-28393
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-2020-28393.
| URL | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-116379.pdf | Vendor Advisory |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-131-10 | Third Party Advisory US Government Resource |
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-2020-28393 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-28393 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 -
Initial Analysis by [email protected]
May. 21, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-116379.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-116379.pdf Vendor Advisory Changed Reference Type https://us-cert.cisa.gov/ics/advisories/icsa-21-131-10 No Types Assigned https://us-cert.cisa.gov/ics/advisories/icsa-21-131-10 Third Party Advisory, US Government Resource Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xm-400_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 6.4 OR cpe:2.3:h:siemens:scalance_xm-400:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xr524_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 6.4 OR cpe:2.3:h:siemens:scalance_xr524:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xr526_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 6.4 OR cpe:2.3:h:siemens:scalance_xr526:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xr528_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 6.4 OR cpe:2.3:h:siemens:scalance_xr528:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xr552_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 6.4 OR cpe:2.3:h:siemens:scalance_xr552:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xm416-4c_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 6.4 OR cpe:2.3:h:siemens:scalance_xm416-4c:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xm408-8c_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 6.4 OR cpe:2.3:h:siemens:scalance_xm408-8c:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xm408-4c_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 6.4 OR cpe:2.3:h:siemens:scalance_xm408-4c:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xm416-4c_l3_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 6.4 OR cpe:2.3:h:siemens:scalance_xm416-4c_l3:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xm408-8c_l3_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 6.4 OR cpe:2.3:h:siemens:scalance_xm408-8c_l3:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xm408-4c_l3_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 6.4 OR cpe:2.3:h:siemens:scalance_xm408-4c_l3:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 13, 2021
Action Type Old Value New Value Changed Description A vulnerability has been identified in SCALANCE XM-400 Family (All versions < V6.4), SCALANCE XR-500 Family (All versions < V6.4). The OSPF protocol implementation in affected devices incorrectly handles the number of LSA fields in combination with other modified fields. An unauthenticated remote attacker could create a permanent denial-of-service condition by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected device. An unauthenticated remote attacker could create a permanent denial-of-service condition by sending specially crafted OSPF packets. Successful exploitation requires OSPF to be enabled on an affected device on the SCALANCE XM-400, XR-500 (All versions prior to v6.4). Added Reference https://us-cert.cisa.gov/ics/advisories/icsa-21-131-10 [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-2020-28393 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-2020-28393
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.23 }} 0.03%
score
0.61297
percentile