CVE-2021-42554
Intel InsydeH2O SMM Memory Corruption Privilege Escalation
Description
An issue was discovered in Insyde InsydeH2O with Kernel 5.0 before 05.08.42, Kernel 5.1 before 05.16.42, Kernel 5.2 before 05.26.42, Kernel 5.3 before 05.35.42, Kernel 5.4 before 05.42.51, and Kernel 5.5 before 05.50.51. An SMM memory corruption vulnerability in FvbServicesRuntimeDxe allows a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
INFO
Published Date :
Feb. 3, 2022, 2:15 a.m.
Last Modified :
March 8, 2022, 8:18 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
6.0
Exploitability Score :
1.5
Affected Products
The following products are affected by CVE-2021-42554
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-2021-42554.
| URL | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220216-0007/ | Third Party Advisory |
| https://www.insyde.com/security-pledge | Vendor Advisory |
| https://www.insyde.com/security-pledge/SA-2022012 | 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-2021-42554 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-42554 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 -
Reanalysis by [email protected]
Mar. 08, 2022
Action Type Old Value New Value Removed CWE NIST NVD-CWE-noinfo Added CWE NIST CWE-787 Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_field_pg_m5:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_field_pg_m6_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_field_pg_m6:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_ipc127e_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_ipc127e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_ipc227g_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_ipc227g:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_ipc277g_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_ipc277g:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_ipc327g_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_ipc327g:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_ipc377g_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_ipc377g:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_ipc427e_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_ipc427e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_ipc477e_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_ipc477e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_ipc627e_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_ipc627e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_ipc647e_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_ipc647e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_ipc677e_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_ipc677e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_ipc847e_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_ipc847e:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_itp1000_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_itp1000:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:siemens:ruggedcom_ape1808_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:ruggedcom_ape1808:-:*:*:*:*:*:*:* -
Modified Analysis by [email protected]
Mar. 08, 2022
Action Type Old Value New Value Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20220216-0007/ No Types Assigned https://security.netapp.com/advisory/ntap-20220216-0007/ Third Party Advisory Changed Reference Type https://www.insyde.com/security-pledge/SA-2022012 No Types Assigned https://www.insyde.com/security-pledge/SA-2022012 Vendor Advisory Removed CWE NIST CWE-787 Added CWE NIST NVD-CWE-noinfo -
CVE Modified by [email protected]
Feb. 24, 2022
Action Type Old Value New Value Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf [No Types Assigned] -
CVE Modified by [email protected]
Feb. 17, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20220216-0007/ [No Types Assigned] -
CVE Modified by [email protected]
Feb. 09, 2022
Action Type Old Value New Value Changed Description SMM memory corruption vulnerability allowing a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM. An issue was discovered in Insyde InsydeH2O with Kernel 5.0 before 05.08.42, Kernel 5.1 before 05.16.42, Kernel 5.2 before 05.26.42, Kernel 5.3 before 05.35.42, Kernel 5.4 before 05.42.51, and Kernel 5.5 before 05.50.51. An SMM memory corruption vulnerability in FvbServicesRuntimeDxe allows a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM. Added Reference https://www.insyde.com/security-pledge/SA-2022012 [No Types Assigned] -
Initial Analysis by [email protected]
Feb. 05, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://www.insyde.com/security-pledge No Types Assigned https://www.insyde.com/security-pledge Vendor Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.0 up to (excluding) 5.08.42 Added CPE Configuration OR *cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.1 up to (excluding) 5.16.42 Added CPE Configuration OR *cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.2 up to (excluding) 5.26.42 Added CPE Configuration OR *cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.3 up to (excluding) 5.35.42 Added CPE Configuration OR *cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.4 up to (excluding) 5.42.51 Added CPE Configuration OR *cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.50.51
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-42554 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-2021-42554
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile