Dec0ne/KrbRelayUp: KrbRelayUp - a universal no-fix local privilege escalation in windows domain environments where LDAP signing is not enforced (the default settings).
KrbRelayUp - a universal no-fix local privilege escalation in windows domain environments where LDAP signing is not enforced (the default settings). - GitHub - Dec0ne/KrbRelayUp: KrbRelayUp - a universal no-fix local privilege escalation in windows domain environments where LDAP signing is not enforced (the default settings).
For April Patch Tuesday, the computing giant addressed a zero-day under active attack and several critical security vulnerabilities, including three that allow self-propagating exploits.
Dropping Files on a Domain Controller Using CVE-2021-43893
On December 14, 2021, during the Log4Shell chaos, Microsoft published CVE-2021-43893, a remote privelege escalation vulnerability affecting Windows EFS.
Patch Tuesday - Exploit Wednesday: Pwning Windows Ancillary Function Driver for WinSock (afd.sys) in 24 Hours
Dive into the analysis and exploitation of a vulnerability in the Windows Ancillary Function Driver for Winsock for Local Privilege Escalation on Windows 11. More from X-Force Red experts.
Threat groups are using Windows LNK files to gain access
Microsoft's move last year to block macros by default in Office applications is forcing miscreants to find other tools with which to launch cyberattacks, including the software vendor's LNK files – the shortcuts Windows uses to point to other files.
Zoom Patches High Risk Flaws on Windows, MacOS Platforms
Video messaging giant Zoom has released patches for multiple security vulnerabilities that expose both Windows and macOS users to malicious hacker attacks.
Exploring ZIP Mark-of-the-Web Bypass Vulnerability (CVE-2022-41049)
Windows ZIP extraction bug (CVE-2022-41049) lets attackers craft ZIP files, which evade warnings on attempts to execute packaged files, even if ZIP file was downloaded from the Internet.
Abusing windows’ tokens to compromise active directory without touching lsass
During an internal assessment, I performed an NTLM relay and ended up owning the NT AUTHORITY\SYSTEM account of the Windows server. Looking at the users connected on the same server, I knew that a domain administrator account was connected. All I had to do to compromise the domain, was compromise the account. This could be achieved by dumping the memory of the LSASS process and collecting their credentials or Kerberos TGT’s. Seemed easy until I realised an EDR was installed on the system. Long story short, I ended up compromising the domain admin account without touching the LSASS process. To do so, I relied on an internal Windows mechanism called token manipulation. The goal of this blog post is to present how I did it. We will see what access tokens are, what they are used for, how we can manipulate them to usurp legitimate accounts without touching LSASS and finally I will present a tool and a CrackMapExec module that can be used during such assessments. All the source code, binaries and CrackMapExec module can be found here https://github.com/sensepost/impersonate.
Black Lotus Labs, the threat intelligence arm of Lumen Technologies, recently uncovered a multifunctional Go-based malware developed for Windows and Linux
Break me out of sandbox in old pipe - CVE-2022-22715 Windows Dirty Pipe
In February 2022, Microsoft patched the vulnerability I used in TianfuCup 2021 for escaping Adobe Reader sandbox, assigned CVE-2022-22715. The vulnerability existed in Named Pipe File System nearly 10 years since the AppContainer was born. We called it "Windows Dirty Pipe". In this article, I will share the root cause and exploitation of Windows Dirty Pipe. So let's start our journey.
911 Proxy Service Implodes After Disclosing Breach
911[.]re, a proxy service that since 2015 has sold access to hundreds of thousands of Microsoft Windows computers daily, announced this week that it is shutting down in the wake of a data breach that destroyed key components of its…
Microsoft finds Raspberry Robin worm in hundreds of Windows networks
Microsoft says that a recently spotted Windows worm has been found on the networks of hundreds of organizations from various industry sectors.
Windows RPC enumeration, discovery, and auditing via NtObjectManager. We will audit the vulnerable RPC interfaces that lead to PetitPotam, discover how they have changed over the past year, and overcome some common RPC auditing pitfalls.
NSA, Partners Recommend Properly Configuring, Monitoring PowerShell in New Report
The National Security Agency (NSA) and partner cybersecurity authorities released a Cybersecurity Information Sheet today recommending that Microsoft Windows® operators and administrators properly
7-zip now supports Windows ‘Mark-of-the-Web’ security feature
7-zip has finally added support for the long-requested 'Mark-of-the-Web' Windows security feature, providing better protection from malicious downloaded files.
Dec0ne/KrbRelayUp: KrbRelayUp - a universal no-fix local privilege escalation in windows domain environments where LDAP signing is not enforced (the default settings).
KrbRelayUp - a universal no-fix local privilege escalation in windows domain environments where LDAP signing is not enforced (the default settings). - GitHub - Dec0ne/KrbRelayUp: KrbRelayUp - a universal no-fix local privilege escalation in windows domain environments where LDAP signing is not enforced (the default settings).
For April Patch Tuesday, the computing giant addressed a zero-day under active attack and several critical security vulnerabilities, including three that allow self-propagating exploits.
Dropping Files on a Domain Controller Using CVE-2021-43893
On December 14, 2021, during the Log4Shell chaos, Microsoft published CVE-2021-43893, a remote privelege escalation vulnerability affecting Windows EFS.
Break me out of sandbox in old pipe - CVE-2022-22715 Windows Dirty Pipe
In February 2022, Microsoft patched the vulnerability I used in TianfuCup 2021 for escaping Adobe Reader sandbox, assigned CVE-2022-22715. The vulnerability existed in Named Pipe File System nearly 10 years since the AppContainer was born. We called it "Windows Dirty Pipe". In this article, I will share the root cause and exploitation of Windows Dirty Pipe. So let's start our journey.
911 Proxy Service Implodes After Disclosing Breach
911[.]re, a proxy service that since 2015 has sold access to hundreds of thousands of Microsoft Windows computers daily, announced this week that it is shutting down in the wake of a data breach that destroyed key components of its…
Microsoft finds Raspberry Robin worm in hundreds of Windows networks
Microsoft says that a recently spotted Windows worm has been found on the networks of hundreds of organizations from various industry sectors.
Windows RPC enumeration, discovery, and auditing via NtObjectManager. We will audit the vulnerable RPC interfaces that lead to PetitPotam, discover how they have changed over the past year, and overcome some common RPC auditing pitfalls.
NSA, Partners Recommend Properly Configuring, Monitoring PowerShell in New Report
The National Security Agency (NSA) and partner cybersecurity authorities released a Cybersecurity Information Sheet today recommending that Microsoft Windows® operators and administrators properly
7-zip now supports Windows ‘Mark-of-the-Web’ security feature
7-zip has finally added support for the long-requested 'Mark-of-the-Web' Windows security feature, providing better protection from malicious downloaded files.