CVE-2020-27339
Insyde InsydeH2O SMM Driver Buffer Validation Vulnerability
Description
In the kernel in Insyde InsydeH2O 5.x, certain SMM drivers did not correctly validate the CommBuffer and CommBufferSize parameters, allowing callers to corrupt either the firmware or the OS memory. The fixed versions for this issue in the AhciBusDxe, IdeBusDxe, NvmExpressDxe, SdHostDriverDxe, and SdMmcDeviceDxe drivers are 05.16.25, 05.26.25, 05.35.25, 05.43.25, and 05.51.25 (for Kernel 5.1 through 5.5).
INFO
Published Date :
June 16, 2021, 4:15 p.m.
Last Modified :
July 12, 2022, 5:42 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
0.8
Affected Products
The following products are affected by CVE-2020-27339
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-2020-27339
.
URL | Resource |
---|---|
https://cert-portal.siemens.com/productcert/pdf/ssa-306654.pdf | Third Party Advisory |
https://security.netapp.com/advisory/ntap-20220216-0005/ | Third Party Advisory |
https://www.insyde.com/security-pledge/SA-2021001 | 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-2020-27339
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-27339
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 -
CWE Remap by [email protected]
Jul. 12, 2022
Action Type Old Value New Value Changed CWE CWE-269 CWE-20 -
Modified Analysis by [email protected]
Apr. 24, 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-20220216-0005/ No Types Assigned https://security.netapp.com/advisory/ntap-20220216-0005/ Third Party Advisory Added CPE Configuration AND OR *cpe:2.3:o:siemens:ruggedcom_apr1808_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:ruggedcom_apr1808:-:*:*:*:*:*:*:* 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_ipc477e_pro_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_ipc477e_pro:-:*:*:*:*:*:*:* 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:-:*:*:*:*:*:*:* -
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-20220216-0005/ [No Types Assigned] -
CVE Modified by [email protected]
Oct. 01, 2021
Action Type Old Value New Value Changed Description Insyde found that a number of SMM drivers in InsydeH2O did not correctly validate the CommBuffer and CommBufferSize parameters, allowing callers to corrupt either the firmware or the OS memory. The following drivers were affected by this vulnerability: 1. PnpSmm 2. SmmResourceCheckDxe 3. BeepStatusCode For these three, an updated version was made for Kernel 5.0 - Kernel 5.5 in the following versions: 05.08.23/05.16.23/05.26.23/05.35.23/05.43.23/05.51.23 4. AhciBusDxe 5. IdeBusDxe 6. NvmExpressDxe 7. SdHostDriverDxe 10. SdMmcDeviceDxe For these, an updated version was released in Kernel 5.1 - Kernel 5.5 in the following versions: 05.16.25,05.26.25,05.35.25,05.43.25,05.51.25 In the kernel in Insyde InsydeH2O 5.x, certain SMM drivers did not correctly validate the CommBuffer and CommBufferSize parameters, allowing callers to corrupt either the firmware or the OS memory. The fixed versions for this issue in the AhciBusDxe, IdeBusDxe, NvmExpressDxe, SdHostDriverDxe, and SdMmcDeviceDxe drivers are 05.16.25, 05.26.25, 05.35.25, 05.43.25, and 05.51.25 (for Kernel 5.1 through 5.5). Removed Reference https://www.insyde.com/products [Product, Vendor Advisory] -
CVE Modified by [email protected]
Sep. 27, 2021
Action Type Old Value New Value Changed Description An issue was discovered in IdeBusDxe in Insyde InsydeH2O 5.x. Code in system management mode calls a function outside of SMRAM in response to a crafted software SMI, aka Inclusion of Functionality from an Untrusted Control Sphere. Modifying the well-known address of this function allows an attacker to gain control of the system with the privileges of system management mode. Insyde found that a number of SMM drivers in InsydeH2O did not correctly validate the CommBuffer and CommBufferSize parameters, allowing callers to corrupt either the firmware or the OS memory. The following drivers were affected by this vulnerability: 1. PnpSmm 2. SmmResourceCheckDxe 3. BeepStatusCode For these three, an updated version was made for Kernel 5.0 - Kernel 5.5 in the following versions: 05.08.23/05.16.23/05.26.23/05.35.23/05.43.23/05.51.23 4. AhciBusDxe 5. IdeBusDxe 6. NvmExpressDxe 7. SdHostDriverDxe 10. SdMmcDeviceDxe For these, an updated version was released in Kernel 5.1 - Kernel 5.5 in the following versions: 05.16.25,05.26.25,05.35.25,05.43.25,05.51.25 -
Initial Analysis by [email protected]
Jun. 23, 2021
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:U/C:H/I:H/A:H Changed Reference Type https://www.insyde.com/products No Types Assigned https://www.insyde.com/products Product, Vendor Advisory Changed Reference Type https://www.insyde.com/security-pledge/SA-2021001 No Types Assigned https://www.insyde.com/security-pledge/SA-2021001 Vendor Advisory Added CWE NIST CWE-269 Added CPE Configuration OR *cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.3 up to (excluding) 5.34.44 Added CPE Configuration OR *cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.2 up to (excluding) 5.25.44 Added CPE Configuration OR *cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.1 up to (excluding) 5.16.25 Added CPE Configuration OR *cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.4 up to (excluding) 5.42.44 Added CPE Configuration OR *cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.3 up to (excluding) 5.35.25 Added CPE Configuration OR *cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.2 up to (excluding) 5.26.25 Added CPE Configuration OR *cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* versions from (including) 5.4 up to (excluding) 5.43.25
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-27339
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-2020-27339
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
0.10264
percentile