CVE-2021-34481
Windows Print Spooler Remote Code Execution Vulnerability
Description
<p>A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p><strong>UPDATE</strong> August 10, 2021: Microsoft has completed the investigation and has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. This security update changes the Point and Print default behavior; please see <a href="https://support.microsoft.com/help/5005652">KB5005652</a>.</p>
INFO
Published Date :
July 16, 2021, 9:15 p.m.
Last Modified :
Nov. 21, 2024, 6:10 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-34481 has a 9 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2021-34481
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-2021-34481.
| URL | Resource |
|---|---|
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34481 | Patch Vendor Advisory |
| https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34481 | Patch 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).
it is my all notes about topics I've been learned in 4/5 years (mostly hacking)
basics bugbounty c cpp ctfs hacking hacking-tools malware malware-analysis malware-development python reverse-engineering sql-injection xss
None
C++
A simple tool to create mermaid js markdown charts from CVE IDs and CVE keyword searches.
cve markdown mermaidjs cvrf
Python
Remote install printers from print server to local Windows system
PowerShell
Check patch for CVE-2021-34481
PowerShell
A list of vulnerabilities or design flaws that Microsoft does not intend to fix. Since the number is growing, I decided to make a list. This list covers only vulnerabilities that came up in July 2021 (and SpoolSample ;-))
microsoft activedirectory security-tools redteam blueteam
Windows PrintNightmare vulnerability mitigation tool. A tool to start or stop print spooler service with ease for immediate workaround on system flaw. Keep spooler service "ON" during use only. "DISABLE" service startup. CODE BY SRINATH S BHAUMIK
Batchfile PowerShell
Bring your own print driver privilege escalation tool
C++
Automatic monitor github cve using Github Actions
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-34481 vulnerability anywhere in the article.
-
Cybersecurity News
Microsoft Addresses Critical Zero-Day Vulnerabilities in November Patch Tuesday
Microsoft’s November 2024 Patch Tuesday addresses 92 vulnerabilities, including four critical and 83 deemed “important.” Notably, this release includes patches for four zero-day vulnerabilities active ... Read more
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Cybersecurity News
0patch Uncovers and Patches New Windows Zero-Day Vulnerability, Microsoft Scrambles to Re-Fix Flaw
Security researchers at 0patch have discovered a new zero-day vulnerability in Microsoft Windows, exposing users to potential credential theft. This revelation comes on the heels of Microsoft’s attemp ... Read more
-
Cybersecurity News
Microsoft’s October 2024 Patch Tuesday: Zero-Day Exploits and Critical Vulnerabilities Patched
Microsoft’s October 2024 Patch Tuesday delivered a crucial set of security updates, addressing a total of 121 vulnerabilities across its ecosystem. This includes three critical vulnerabilities and 114 ... Read more
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Cybersecurity News
0-Day Flaw CVE-2024-38200 in Microsoft Office Exposes NTLMv2 Hashes: PoC Exploit Released
A discovered zero-day vulnerability is putting Microsoft Office users at risk. Security researcher Metin Yunus Kandemir recently published the technical details and a proof-of-concept (PoC) exploit th ... Read more
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Cybersecurity News
New Zero-Day Emerges After Microsoft Patch Tuesday: CVE-2024-43461 Targets Windows MSHTML
IE and a promote window dialog appear when the victim double-clicks on the .url file | Image: Check PointIn an unexpected turn of events, Microsoft has revised its September 2024 Patch Tuesday securit ... Read more
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Cybersecurity News
Microsoft’s September Patch Tuesday: A Patchwork of Urgency with 4 Zero-Days Under Attack
This September’s edition of Microsoft’s Patch Tuesday addresses 79 vulnerabilities, including 6 critical and 71 important severity issues. Among these, four zero-day vulnerabilities were actively expl ... Read more
The following table lists the changes that have been made to the
CVE-2021-34481 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34481 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Dec. 28, 2023
Action Type Old Value New Value Changed Description Windows Print Spooler Elevation of Privilege Vulnerability <p>A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p><strong>UPDATE</strong> August 10, 2021: Microsoft has completed the investigation and has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. This security update changes the Point and Print default behavior; please see <a href="https://support.microsoft.com/help/5005652">KB5005652</a>.</p> Added CVSS V3.1 Microsoft Corporation AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H -
Reanalysis by [email protected]
Apr. 11, 2023
Action Type Old Value New Value Removed CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Removed CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H -
Reanalysis by [email protected]
Aug. 09, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* OR *cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_10:20h2:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_10:21h1:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_10:1909:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_10:2004:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* *cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2016:2004:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* -
Initial Analysis by [email protected]
Jul. 22, 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://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34481 No Types Assigned https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34481 Patch, Vendor Advisory Added CWE NIST CWE-269 Added CPE Configuration OR *cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-34481 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-2021-34481
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.45 }} -0.55%
score
0.74905
percentile