CVE-2021-41840
InsydeH2O NvmExpressDxe SMM Privilege Escalation Vulnerability
Description
An issue was discovered in NvmExpressDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. There is an SMM callout that allows an attacker to access the System Management Mode and execute arbitrary code. This occurs because of Inclusion of Functionality from an Untrusted Control Sphere.
INFO
Published Date :
Feb. 3, 2022, 2:15 a.m.
Last Modified :
March 29, 2022, 4:36 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
6.0
Exploitability Score :
1.5
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-2021-41840.
| URL | Resource |
|---|---|
| https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220217-0014/ | Third Party Advisory |
| https://www.insyde.com/security-pledge | Vendor Advisory |
| https://www.insyde.com/security-pledge/SA-2022018 | 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-2021-41840 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-41840 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 -
Modified Analysis by [email protected]
Mar. 29, 2022
Action Type Old Value New Value 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-20220217-0014/ No Types Assigned https://security.netapp.com/advisory/ntap-20220217-0014/ Third Party Advisory -
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. 18, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20220217-0014/ [No Types Assigned] -
Initial Analysis by [email protected]
Feb. 09, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) 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://www.insyde.com/security-pledge No Types Assigned https://www.insyde.com/security-pledge Vendor Advisory Changed Reference Type https://www.insyde.com/security-pledge/SA-2022018 No Types Assigned https://www.insyde.com/security-pledge/SA-2022018 Vendor Advisory Added CWE NIST CWE-770 Added CPE Configuration OR *cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.2 up to (excluding) 5.23.35 Added CPE Configuration OR *cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.3 up to (excluding) 5.32.35 Added CPE Configuration OR *cpe:2.3:a:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.4 up to (excluding) 5.40.35 -
CVE Modified by [email protected]
Feb. 09, 2022
Action Type Old Value New Value Changed Description A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated table variable EFI_BOOT_SERVICES. This allows an attacker who is capable of executing code in DXE phase to exploit this vulnerability to escalate privileges to SMM. The attacker can overwrite the LocateProtocol or Freepool memory address location to execute unwanted code. An issue was discovered in NvmExpressDxe in the kernel 5.0 through 5.5 in Insyde InsydeH2O. There is an SMM callout that allows an attacker to access the System Management Mode and execute arbitrary code. This occurs because of Inclusion of Functionality from an Untrusted Control Sphere. Added Reference https://www.insyde.com/security-pledge/SA-2022018 [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-2021-41840 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-2021-41840
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.01%
score
0.18206
percentile