Whitepaper called Windows User Accounts Penetration Testing. Written in Persian.

CarolinaCon, which was to be hosted in Charlotte at the Embassy Suites April 10th through the 11th, 2020, has been postponed due to COVID-19.

The call for papers for H2HC 17th edition is now open. H2HC is a hacker conference taking place in Sao Paulo, Brazil, from October 24th through the 25th of 2020.

This is a whitepaper that discusses using DCSync to pull password hashes from a domain controller.

Facebook suffered from an information disclosure vulnerability. If a user uploaded their contacts to Facebook and then proceeded to download their expanded dataset from the DYI (Download Your Information) section, they would receive a file called addressbook.html in their downloaded archive. The addressbook.html is supposed to house the contact information they uploaded. However, due to a flaw in how Facebook implemented this, it also housed contact information from other uploads other users have performed for the same person, provided they had one piece of matching data. This effectively built large dossiers on users and disclosed their information to anyone that knew at least one piece of matching data.

Oracle Java versions prior to 7u25 suffer from an invalid array indexing vulnerability that exists within the native storeImageArray() function inside jre/bin/awt.dll. This exploit code demonstrates remote code execution by popping calc.exe. It was obtained through the Packet Storm Bug Bounty program.

Oracle Java versions prior to 7u25 suffer from an invalid array indexing vulnerability that exists within the native storeImageArray() function inside jre/bin/awt.dll. This vulnerability allows for remote code execution. User interaction is required for this exploit in that the target must visit a malicious page or open a malicious file. This finding was obtained through the Packet Storm Bug Bounty program.

The IntegerInterleavedRaster.verify() method in Oracle Java versions prior to 7u25 is vulnerable to a signed integer overflow that allows bypassing of "dataOffsets[0]" boundary checks. This exploit code demonstrates remote code execution by popping calc.exe. It was obtained through the Packet Storm Bug Bounty program.

The IntegerInterleavedRaster.verify() method in Oracle Java versions prior to 7u25 is vulnerable to a signed integer overflow that allows bypassing of "dataOffsets[0]" boundary checks. This vulnerability allows for remote code execution. User interaction is required for this exploit in that the target must visit a malicious page or open a malicious file. This finding was purchased through the Packet Storm Bug Bounty program.

Adobe ColdFusion versions 9.0, 9.0.1, and 9.0.2 do not properly check the "rdsPasswordAllowed" field when accessing the Administrator API CFC that is used for logging in. The login function never checks if RDS is enabled when rdsPasswordAllowed="true". This means that if RDS was not configured, the RDS user does not have a password associated with their username. This means by setting rdsPasswordAllowed to "true", we can bypass the admin login to use the rdsPassword, which in most cases, is blank. These details were purchased through the Packet Storm Bug Bounty program and are being released to the community.

The BytePackedRaster.verify() method in Oracle Java versions prior to 7u25 is vulnerable to a signed integer overflow that allows bypassing of "dataBitOffset" boundary checks. This exploit code demonstrates remote code execution by popping calc.exe. It was obtained through the Packet Storm Bug Bounty program.

The BytePackedRaster.verify() method in Oracle Java versions prior to 7u25 is vulnerable to a signed integer overflow that allows bypassing of "dataBitOffset" boundary checks. This vulnerability allows for remote code execution. User interaction is required for this exploit in that the target must visit a malicious page or open a malicious file. This finding was purchased through the Packet Storm Bug Bounty program.

The ByteComponentRaster.verify() method in Oracle Java versions prior to 7u25 is vulnerable to a memory corruption vulnerability that allows bypassing of "dataOffsets[]" boundary checks. This exploit code demonstrates remote code execution by popping calc.exe. It was obtained through the Packet Storm Bug Bounty program.

The ByteComponentRaster.verify() method in Oracle Java versions prior to 7u25 is vulnerable to a memory corruption vulnerability that allows bypassing of "dataOffsets[]" boundary checks. This vulnerability allows for remote code execution. User interaction is required for this exploit in that the target must visit a malicious page or open a malicious file. This finding was purchased through the Packet Storm Bug Bounty program.

The ShortComponentRaster.verify() method in Oracle Java versions prior to 7u25 is vulnerable to a memory corruption vulnerability that allows bypassing of "dataOffsets[]" boundary checks when the "numDataElements" field is 0. This exploit code demonstrates remote code execution by popping calc.exe. It was obtained through the Packet Storm Bug Bounty program.

The ShortComponentRaster.verify() method in Oracle Java versions prior to 7u25 is vulnerable to a memory corruption vulnerability that allows bypassing of "dataOffsets[]" boundary checks when the "numDataElements" field is 0. This vulnerability allows for remote code execution. User interaction is required for this exploit in that the target must visit a malicious page or open a malicious file. This finding was purchased through the Packet Storm Bug Bounty program.

This exploit leverages both invalid typecast and memory disclosure vulnerabilities in Microsoft Silverlight 5 in order to achieve code execution. This exploit code demonstrates remote code execution by popping calc.exe. It was obtained through the Packet Storm Bug Bounty program. Google flags this as malware so only use this if you know what you are doing. The password to unarchive this zip is the word "infected".

Microsoft Silverlight 5 suffers from invalid typecast and memory disclosure vulnerabilities that, when leveraged together, allow for arbitrary code execution. A memory disclosure vulnerability exists in the public WriteableBitmap class from System.Windows.dll. This class allows reading of image pixels from the user-defined data stream via the public SetSource() method. BitmapSource.ReadStream() allocates and returns byte array and a count of array items as out parameters. These returned values are taken from the input stream and they can be fully controlled by the untrusted code. When returned "count" is greater than "array.Length", then data outside the "array" are used as input stream data by the native BitmapSource_SetSource() from agcore.dll. Later all data can be viewed via the public WriteableBitmap.Pixels[] property. Exploitation details related to these findings were purchased through the Packet Storm Bug Bounty program.

This Metasploit module exploits a vulnerability on Microsoft Silverlight. The vulnerability exists on the Initialize() method from System.Windows.Browser.ScriptObject, which access memory in an unsafe manner. Since it is accessible for untrusted code (user controlled) it's possible to dereference arbitrary memory which easily leverages to arbitrary code execution. In order to bypass DEP/ASLR a second vulnerability is used, in the public WriteableBitmap class from System.Windows.dll. This Metasploit module has been tested successfully on IE6 - IE10, Windows XP SP3 / Windows 7 SP1 on both x32 and x64 architectures.

Proof of concept code that demonstrates an ASLR bypass of PIE compiled 64bit Linux.

The release of this advisory provides exploitation details in relation a weakness in the Linux ASLR implementation. The problem appears when the executable is PIE compiled and it has an address leak belonging to the executable. These details were obtained through the Packet Storm Bug Bounty program and are being released to the community.

This Metasploit module will bypass UAC on Windows 8-10 by hijacking a special key in the Registry under the Current User hive, and inserting a custom command that will get invoked when any binary (.exe) application is launched. But slui.exe is an auto-elevated binary that is vulnerable to file handler hijacking. When we run slui.exe with changed Registry key (HKCU:SoftwareClassesexefileshellopencommand), it will run our custom command as Admin instead of slui.exe. The module modifies the registry in order for this exploit to work. The modification is reverted once the exploitation attempt has finished. The module does not require the architecture of the payload to match the OS. If specifying EXE::Custom your DLL should call ExitProcess() after starting the payload in a different process.

Oracle WebLogic version 12.1.2.0 RMI registry UnicastRef object java deserialization remote code execution exploit.

A flaw was found in Workspace Control that allows a local unprivileged user to retrieve the database or Relay server credentials from the Windows Registry. These credentials are encrypted, however the encryption that is used is reversible. This issue was successfully verified on Ivanti Workspace Control version 10.2.700.1 and 10.2.950.0.

This exploit permits an attacker to bypass UAC by hijacking a registry key during computerSecurity.exe (auto elevate windows binary) execution.

This Metasploit module modifies a registry key, but cleans up the key once the payload has been invoked. The module does not require the architecture of the payload to match the OS.

The VMX process (vmware-vmx.exe) process configures and hosts an instance of VM. As is common with desktop virtualization platforms the VM host usually has privileged access into the OS such as mapping physical memory which represents a security risk. To mitigate this the VMX process is created with an elevated integrity level by the authentication daemon (vmware-authd.exe) which runs at SYSTEM. This prevents a non-administrator user opening the process and abusing its elevated access. Unfortunately the process is created as the desktop user which results in the elevated process sharing resources such as COM registrations with the normal user who can modify the registry to force an arbitrary DLL to be loaded into the VMX process. Affects VMware Workstation Windows version 14.1.5 (on Windows 10). Also tested on VMware Player version 15.

This Metasploit module exploits a flaw in the WSReset.exe file associated with the Windows Store. This binary has autoelevate privs, and it will run a binary file contained in a low-privilege registry location. By placing a link to the binary in the registry location, WSReset.exe will launch the binary as a privileged user.

This Metasploit module will bypass Windows UAC by hijacking a special key in the Registry under the current user hive, and inserting a custom command that will get invoked when Windows backup and restore is launched. It will spawn a second shell that has the UAC flag turned off. This module modifies a registry key, but cleans up the key once the payload has been invoked.

Saltstack version 3000.1 suffers from a remote code execution vulnerability.

NetBSD stack clash proof of concept exploit.

SWAPGS attack proof of concept exploit that demonstrates an information disclosure in the windows kernel.

webERP version 4.15.1 suffers from an unauthenticated backup file disclosure vulnerability.

Cisco Unified Contact Center Express suffers from a privilege escalation vulnerability.

CRYPTOCard's CRYPTOAdmin software is a challenge/response user authentication administration system. The PT-1 token, which runs on a PalmOS device, generates the one-time-password response. A PalmOS .PDB file is created for each user and loaded onto their Palm device. By gaining access to the .PDB file, the legitimate user's PIN can be determined through a series of DES decrypts-and-compares. Using the demonstration tool, the PIN can be determined in under 5 minutes on a Pentium III 450MHz.