CVE-2021-3849
Lenovo Fan Power Controller2 & System Management Module Authentication Bypass Vulnerability
Description
An authentication bypass vulnerability was discovered in the web interface of the Lenovo Fan Power Controller2 (FPC2) and Lenovo System Management Module (SMM) firmware that could allow an unauthenticated attacker to execute commands on the SMM and FPC2. SMM2 is not affected.
INFO
Published Date :
April 22, 2022, 9:15 p.m.
Last Modified :
Oct. 27, 2022, 11:55 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-3849
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-2021-3849.
| URL | Resource |
|---|---|
| https://support.lenovo.com/us/en/product_security/LEN-72615 | 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-2021-3849 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3849 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]
Oct. 27, 2022
Action Type Old Value New Value Removed CWE NIST CWE-287 Added CWE NIST NVD-CWE-noinfo -
Initial Analysis by [email protected]
May. 09, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) 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://support.lenovo.com/us/en/product_security/LEN-72615 No Types Assigned https://support.lenovo.com/us/en/product_security/LEN-72615 Vendor Advisory Added CWE NIST CWE-287 Added CPE Configuration AND OR *cpe:2.3:o:lenovo:nextscale_n1200_enclosure_firmware:*:*:*:*:*:*:*:* versions up to (excluding) fhet50b-2.90 OR cpe:2.3:h:lenovo:nextscale_n1200_enclosure:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkagile_hx_enclosure_certified_node_firmware:*:*:*:*:*:*:*:* versions up to (excluding) tesm28b-1.21 OR cpe:2.3:h:lenovo:thinkagile_hx_enclosure_certified_node:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinkagile_vx_enclosure_firmware:*:*:*:*:*:*:*:* versions up to (excluding) tesm28b-1.21 OR cpe:2.3:h:lenovo:thinkagile_vx_enclosure:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:lenovo:thinksystem_d2_enclosure_firmware:*:*:*:*:*:*:*:* versions up to (excluding) tesm28b-1.21 OR cpe:2.3:h:lenovo:thinksystem_d2_enclosure:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:ibm:nextscale_fan_power_controller_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 44a-3.70 OR cpe:2.3:h:ibm:nextscale_fan_power_controller:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 22, 2022
Action Type Old Value New Value Changed Description An authentication bypass vulnerability was discovered in the web interface of the Lenovo Fan Power Controller2 (FPC2) and Lenovo System Management Module (SMM) firmware that could allow an unauthenticated attacker to execute commands on the SMM and FPC2. SMM2 is not affected. An authentication bypass vulnerability was discovered in the web interface of the Lenovo Fan Power Controller2 (FPC2) and Lenovo System Management Module (SMM) firmware that could allow an unauthenticated attacker to execute commands on the SMM and FPC2. SMM2 is not affected.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3849 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-2021-3849
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.17 }} -0.00%
score
0.54253
percentile