bibliotecaseminariopontificio.cl Cross Site Scripting vulnerability OBB-1233385

Following coordinated and responsible vulnerability disclosure guidelines of the ISO 29147 standard, Open Bug Bounty has: &nbsp&nbsp&nbsp&nbsp&nbsp&nbspa. verified the vulnerability and confirmed its existence; &nbsp&nbsp&nbsp&nbsp&nbsp&nbspb. notified the website operator about its existence...

Privilege Escalation

Linux kernel is vulnerable to privilege escalation. The VMX code sets the GDT.LIMIT to 64 KB and does not restore it to the previous host value. This allows an attacker is able to escalate their privileges by placing malicious entries to the per-cpu variables in the GDT with a corrupted GDT limit...

RHEL 6 : kernel (RHSA-2018:2391)

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:2391 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: Modern operating systems implement...

kernel: kvm: vmx: host GDT limit corruption

A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cp...

kernel: kvm: vmx: host GDT limit corruption

A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cp...

CVE-2018-14775

tssalloc in sys/arch/i386/i386/gdt.c in OpenBSD 6.2 and 6.3 has a Local Denial of Service system crash due to incorrect I/O port access control on the i386 architecture...

Design/Logic Flaw

A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cp...

UBUNTU-CVE-2018-10901

A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cp...

CVE-2018-10901

A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cp...

CVE-2018-10901

A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cp...

Microsoft Windows Kernel 'Win32k.sys' Local Privilege Escalation Vulnerability(CVE-2018-8120)

作者：bigric3 作者博客： 5月15日ESET发文其在3月份捕获了一个 pdf远程代码执行（cve-2018-4990）+windows本地权限提升（cve-2018-8120）的样本。ESET发文后，我从vt上下载了这样一份样本（）。初步逆向，大致明确如外界所传，该漏洞处于开发测试阶段，不慎被上传到了公网样本检测的网上，由ESET捕获并提交微软和adobe修补。测试特征字符串如下 定位样本中关键的代码并调试分析...

gdt-implants.com XSS vulnerability

Open Bug Bounty ID: OBB-360549 Description| Value ---|--- Affected Website:| gdt-implants.com Vulnerable Application:| Custom Code Vulnerability Type:| XSS Cross Site Scripting / CWE-79 CVSSv3 Score:| 6.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Remediation Guide:| OWASP XSS Prevention Cheat...

Linux/x86 memory sinkhole privilege escalation proof of concept Exploit

Exploit for linux platform in category local exploits ; memory sinkhole proof of concept ; hijack ring -2 execution through the apic overlay attack. ; deployed in ring 0 ; the SMBASE register of the core under attack TARGETSMBASE equ 0x1f5ef800 ; the location of the attack GDT. ; this is determin...

Linux/x86 Memory Sinkhole Proof Of Concept

; memory sinkhole proof of concept ; hijack ring -2 execution through the apic overlay attack. ; deployed in ring 0 ; the SMBASE register of the core under attack TARGETSMBASE equ 0x1f5ef800 ; the location of the attack GDT. ; this is determined by which register will be read out of the APIC ; fo...

Linux Kernel (x86) - Memory Sinkhole Privilege Escalation

; memory sinkhole proof of concept ; hijack ring -2 execution through the apic overlay attack. ; deployed in ring 0 ; the SMBASE register of the core under attack TARGETSMBASE equ 0x1f5ef800 ; the location of the attack GDT. ; this is determined by which register will be read out of the APIC ; fo...

Linux Kernel (x86) - Memory Sinkhole Privilege Escalation

Linux Kernel x86 - Memory Sinkhole Privilege Escalation ; memory sinkhole proof of concept ; hijack ring -2 execution through the apic overlay attack. ; deployed in ring 0 ; the SMBASE register of the core under attack TARGETSMBASE equ 0x1f5ef800 ; the location of the attack GDT. ; this is...

Под колпаком: обнаружение виртуальных машин / гипервизоров в *NIX

Часто бывает полезно определить, где мы находимся - в гостевой ОС или нет. Способов это узнать больше десятка, однако все они делятся на 2 типа: - поиск различий между поведением эмулятора и реального железа; - чтение данных эмулируемых железок чтение MAC, адреса шины, названия устройства; По...

DEBIAN-CVE-2010-4255

The fixuppagefault function in arch/x86/traps.c in Xen 4.0.1 and earlier on 64-bit platforms, when paravirtualization is enabled, does not verify that kernel mode is used to call the handlegdtldtmappingfault function, which allows guest OS users to cause a denial of service host OS BUGON via a...