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- Buffer Overflow im 64-Bit Stack - Teil 3 @it-security:blog
- ben wir den String ''/bin/zsh'' an die Funktion ''System()'' gesendet, um eine root Shell zu öffen. Hierzu... n:64_bit_stack_nav}} ==== Theorie ==== In Linux Systemen verwendet man üblicherweise dynamische Programm... iben müssen, sondern einfach auf die Funktion des Systems zugreifen können, welche z.B. in ''libc'' liegt.... GOT überschreiben wir eine Adresse mit der von ''system()'', so dass wir beim Aufruf der Funktion einen S
- Buffer overflow in the 64-bit stack - Part 3 @en:it-security:blog
- we used the string ''/bin/zsh'' to the function ''System()'' function to open a root shell. To do this, ho... urity:blog:bof-part3-header.jpg?500 |}} In Linux systems, dynamic programme libraries are usually used. T... gramme, but can simply access the function of the system, which, for example, is stored in ''libc'' for ex... GOT, we overwrite an address with the one from ''system()''so that we can issue a system command when cal
- Buffer Overflows - Intro @en:it-security
- nd dangerous security vulnerabilities in computer systems. This vulnerability allows an attacker to overwr... overflows work, discuss their impact on computer systems and discuss various preventative measures. \\ \\... ult in an attacker taking control of the affected system, executing malicious code, spying on confidential data or completely disrupting the system's service. In critical environments, such as in t
- Reset the registry at an earlier point in time @en:windows
- g at this point is that we get access to the file system. ===== Rename and save the old registry ===== Now go to the folder C:\Windows\system32\config and rename the following files: - SAM - SECURITY - software - default - system These should now be backed up to another partition or similar. ===== Copying from the system restore ===== Now go to the folder "C:\System Vo
- Buffer Overflow im 64-Bit Stack - Teil 2 @it-security:blog
- .org/wiki/C-Standard-Bibliothek|libc-Funktion]] ''system()'' weitergeleitet wird. Grundlegend basiert dies... AA') RSP: 0x7...fdde0 --> 0x7ffff7e17920 (<__libc_system>: test rdi,rdi) # system("/bin/sh") RIP: 0x400469 (<_init+25>: ret) </code> \\ \\ ===== Abhängigke... ten: <code bash> gdb-peda$ start ... gdb-peda$ p system $1 = {int (const char *)} 0x7ffff7e17920 <__libc_
- Buffer overflow in the 64-bit stack - Part 2 @en:it-security:blog
- .org/wiki/C-Standard-Bibliothek|libc-Funktion]] ''system()'' is forwarded. This tutorial is fundamentally ... AA') RSP: 0x7...fdde0 --> 0x7ffff7e17920 (<__libc_system>: test rdi,rdi) # system("/bin/sh") RIP: 0x400469 (<_init+25>: ret) </code> \\ \\ ===== Dependenci... it: <code bash> gdb-peda$ start ... gdb-peda$ p system $1 = {int (const char *)} 0x7ffff7e17920 <__libc_
- Registry zu einem früherem Zeitpunkt zurücksetzen @windows
- hern ===== Nun geht man in den Ordner C:\Windows\system32\config und benennt folgende Dateien um: - SAM - SECURITY - software - default - system Diese sollten nun auf eine andere Partition oder... leichen gesichert werden. ===== Kopieren aus der Systemwiederherstellung ===== Nun geht man in den Ordner "C:\System Volume Information". Hier liegen mehrere Ordner m
- Windows XP Mode for Windows 7 Home @en:archiv:windows:vista
- r programmes must not be installed in the virtual system! ===== 3 Configuring Windows XP. ===== Start the virtual computer and log into the system. First go to the Security Centre, which can be fo... nd click OK. This will make the red shield in the system try disappear. Next, we scroll all the way down a... ot fix and restart the virtual computer. When the system has restarted, you will immediately notice that t
- NTLDR missing Error message @en:windows
- ===== You need a bootable CD/DVD of your Windows system. Insert this and check that the boot sequence in ... oot Record ===== Let's assume that the operating system is located on C:. Now you must first repair the M... ond command to repair the partition sector of the system partition. ===== Copy system files ===== Now you need to copy the required system files to the partitio
- User account control under Windows Vista @en:windows:security
- is an important security feature. It protects the system from unauthorised access through external attacks... oftware\Microsoft\Windows\CurrentVersion\Policies\System </code> Here we create a new value of the REG_DW... oftware\Microsoft\Windows\CurrentVersion\Policies\System </code> Here we create a new value of the REG_DW... oftware\Microsoft\Windows\CurrentVersion\Policies\System </code> Here we create a new value of the REG_DW
- Buffer Overflows - Intro @it-security
- s ein Angreifer die Kontrolle über das betroffene System übernimmt, Schadcode ausführt, vertrauliche Daten ausspioniert oder den Dienst des Systems vollständig beeinträchtigt. In kritischen Umgebu... st von entscheidender Bedeutung, dass Entwickler, Systemadministratoren und Sicherheitsexperten sich der R... on Buffer Overflows minimieren und die Sicherheit ihrer Systeme gewährleisten. {{page>vorlagen:chatgpt}}
- Update UnrealIRCD @linux
- s the DEFAULT geoip engine. It should work on all systems and receives automatic updates. li... need to install the libmaxminddb library on your system first none: Don't build with any geoip li... sults in a limit of up to 16384, depending on the system. When you boot UnrealIRCd later you will always s... swer 'Yes' if you are OK with this. Also, on some systems (notably FreeBSD), when you enable AddressSaniti
- Linux Commands Cheatsheet @en:linux
- -get upgrade | upgrade installed packages | ==== System Management ==== ^ Command ^ Comment ^ | cat /pro... | mount -o remount -rw / | release read-only file system | | ps | process list | | ps -aux | detailed proc... shutdown -s -f | Forced shutdown | ===== change system time ===== Set the time under Linux. ((https://wiki.ubuntuusers.de/Systemzeit/)) ==== show time ==== <code bash> timedate
- Update UnrealIRCD @en:linux
- s the DEFAULT geoip engine. It should work on all systems and receives automatic updates. li... need to install the libmaxminddb library on your system first none: Don't build with any geoip li... sults in a limit of up to 16384, depending on the system. When you boot UnrealIRCd later you will always s... swer 'Yes' if you are OK with this. Also, on some systems (notably FreeBSD), when you enable AddressSaniti
- Password Manager @en:software:passwort_manager
- error under Vista Aero * Bugfix of the counter system ==== V3.0.0.13 ==== * Layout optimised * Na... mic encryption * Wrong password bug * Licence system * Dismount container after a defined time in mi... displayed as an entry * Improved copy and paste system * Context menu in the container list: * - Cop... ed * Email to author function * Minimise to system tray possible * Password verification when add