CVE-2021-21551
Dell dbutil Driver Insufficient Access Control Vul - [Actively Exploited]
Description
Dell dbutil_2_3.sys driver contains an insufficient access control vulnerability which may lead to escalation of privileges, denial of service, or information disclosure. Local authenticated user access is required.
INFO
Published Date :
May 4, 2021, 4:15 p.m.
Last Modified :
Sept. 17, 2024, 7:47 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
6.0
Exploitability Score :
2.0
CISA KEV (Known Exploited Vulnerabilities)
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.
Dell dbutil driver contains an insufficient access control vulnerability which may lead to escalation of privileges, denial-of-service (DoS), or information disclosure.
Apply updates per vendor instructions.
Public PoC/Exploit Available at Github
CVE-2021-21551 has a 53 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2021-21551.
| URL | Resource |
|---|---|
| http://packetstormsecurity.com/files/162604/Dell-DBUtil_2_3.sys-IOCTL-Memory-Read-Write.html | Exploit Third Party Advisory VDB Entry |
| http://packetstormsecurity.com/files/162739/DELL-dbutil_2_3.sys-2.3-Arbitrary-Write-Privilege-Escalation.html | Exploit Third Party Advisory VDB Entry |
| https://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability | Mitigation 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).
Proof of concept exploit for CVE-2021-21551
C++
None
All CVE - PoC in GitHub
poc proofofconcept tester allcve cvegithub cvenew cvepoc cveupdate
None
渗透测试有关的POC、EXP、脚本、提权、小工具等---About penetration-testing python-script poc getshell csrf xss cms php-getshell domainmod-xss csrf-webshell cobub-razor cve rce sql sql-poc poc-exp bypass oa-getshell cve-cms
Assembly Python Shell PHP C++ C Go Ruby HTML Java
None
Python
A curated compilation of extensive resources dedicated to bootkit and rootkit development.
HTML Python PowerShell
None
Collection of BlueTeam notes to aid threat investigation and forensics.
None
C C++ Assembly
None
None
None
None
Dell Driver EoP (CVE-2021-21551)
C++
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-21551 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-21551 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.
-
Modified Analysis by [email protected]
Sep. 17, 2024
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:dell:dbutil_2_3.sys:-:*:*:*:*:*:*:* OR *cpe:2.3:a:dell:dbutil_2_3.sys:*:*:*:*:*:*:*:* versions up to (including) 2.3 -
CVE Modified by [email protected]
Sep. 16, 2024
Action Type Old Value New Value Changed Description Dell dbutil_2_3.sys driver contains an insufficient access control vulnerability which may lead to escalation of privileges, denial of service, or information disclosure. Local authenticated user access is required. Dell dbutil_2_3.sys driver contains an insufficient access control vulnerability which may lead to escalation of privileges, denial of service, or information disclosure. Local authenticated user access is required. -
Modified Analysis by [email protected]
Jul. 09, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 05, 2023
Action Type Old Value New Value Removed CWE Dell CWE-285 Added CWE Dell CWE-782 Removed CWE Reason CWE-285 / More specific CWE option available -
Reanalysis by [email protected]
Jul. 14, 2022
Action Type Old Value New Value Removed CWE NIST CWE-863 Added CWE NIST NVD-CWE-Other -
Modified Analysis by [email protected]
May. 27, 2021
Action Type Old Value New Value Changed Reference Type http://packetstormsecurity.com/files/162604/Dell-DBUtil_2_3.sys-IOCTL-Memory-Read-Write.html No Types Assigned http://packetstormsecurity.com/files/162604/Dell-DBUtil_2_3.sys-IOCTL-Memory-Read-Write.html Exploit, Third Party Advisory, VDB Entry Changed Reference Type http://packetstormsecurity.com/files/162739/DELL-dbutil_2_3.sys-2.3-Arbitrary-Write-Privilege-Escalation.html No Types Assigned http://packetstormsecurity.com/files/162739/DELL-dbutil_2_3.sys-2.3-Arbitrary-Write-Privilege-Escalation.html Exploit, Third Party Advisory, VDB Entry -
CVE Modified by [email protected]
May. 21, 2021
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/162739/DELL-dbutil_2_3.sys-2.3-Arbitrary-Write-Privilege-Escalation.html [No Types Assigned] -
CVE Modified by [email protected]
May. 17, 2021
Action Type Old Value New Value Added Reference http://packetstormsecurity.com/files/162604/Dell-DBUtil_2_3.sys-IOCTL-Memory-Read-Write.html [No Types Assigned] -
Reanalysis by [email protected]
May. 10, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:dell:debutil_2_3.sys:-:*:*:*:*:*:*:* OR *cpe:2.3:a:dell:dbutil_2_3.sys:-:*:*:*:*:*:*:* -
Initial Analysis by [email protected]
May. 07, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability No Types Assigned https://www.dell.com/support/kbdoc/en-us/000186019/dsa-2021-088-dell-client-platform-security-update-for-dell-driver-insufficient-access-control-vulnerability Mitigation, Vendor Advisory Added CWE NIST CWE-863 Added CPE Configuration OR *cpe:2.3:a:dell:debutil_2_3.sys:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-21551 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-2021-21551
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.30 }} 0.08%
score
0.69474
percentile