kernel: ASLR bypass for setuid binaries due to late install_exec_creds()

A flaw in the loadelfbinary function in the Linux kernel allows a local attacker to leak the base address of .text and stack sections for setuid binaries and bypass ASLR because installexeccreds is called too late in this function...

Kernel: net: using kernel space address bits to derive IP ID may potentially break KASLR

A flaw was found in the way the Linux kernel derived the IP ID field from a partial kernel space address returned by a nethashmix function. A remote user could observe this IP ID field to extract the kernel address bits used to derive its value, which may result in leaking the hash key and...

kernel: ASLR bypass for setuid binaries due to late install_exec_creds()

A flaw in the loadelfbinary function in the Linux kernel allows a local attacker to leak the base address of .text and stack sections for setuid binaries and bypass ASLR because installexeccreds is called too late in this function...

HTTP Asynchronous Reverse Shell - Asynchronous Reverse Shell Using The HTTP Protocol

Today there are many ways to create a reverse shell in order to be able to remotely control a machine through a firewall. Indeed, outgoing connections are not always filtered. However security software and hardware IPS, IDS, Proxy, AV, EDR... are more and more powerful and can detect these attack...

Security Bulletin: A vulnerability affects the Cordova platform packaged with Rational Application Developer (CVE-2015-8320)

Summary A vulnerability has been discovered that affects the Cordova platform packaged with Rational Application Developer. Vulnerability Details CVEID: CVE-2015-8320 DESCRIPTION: Apache Cordova Android could allow a remote attacker to bypass security restrictions, caused by weak randomization of...

CVE-2019-19126

A vulnerability was discovered in glibc where the LDPREFERMAP32BITEXEC environment variable is not ignored when running binaries with the setuid flag on x8664 architectures. This allows an attacker to force system to utilize only half of the memory making the system think the software is 32-bit...

DEBIAN-CVE-2019-19126

On the x86-64 architecture, the GNU C Library aka glibc before 2.31 fails to ignore the LDPREFERMAP32BITEXEC environment variable during program execution after a security transition, allowing local attackers to restrict the possible mapping addresses for loaded libraries and thus bypass ASLR for...

UBUNTU-CVE-2019-19126

On the x86-64 architecture, the GNU C Library aka glibc before 2.31 fails to ignore the LDPREFERMAP32BITEXEC environment variable during program execution after a security transition, allowing local attackers to restrict the possible mapping addresses for loaded libraries and thus bypass ASLR for...

CVE-2014-5439

Multiple Stack-based Buffer Overflow vulnerabilities exists in Sniffit prior to 0.3.7 via a crafted configuration file that will bypass Non-eXecutable bit NX, stack smashing protector SSP, and address space layout randomization ASLR protection mechanisms, which could let a malicious user execute...

CVE-2014-5439

Multiple Stack-based Buffer Overflow vulnerabilities exists in Sniffit prior to 0.3.7 via a crafted configuration file that will bypass Non-eXecutable bit NX, stack smashing protector SSP, and address space layout randomization ASLR protection mechanisms, which could let a malicious user execute...

kernel: Linux stack ASLR implementation Integer overflow

An integer overflow flaw was found in the way the Linux kernel randomized the stack for processes on certain 64-bit architecture systems, such as x86-64, causing the stack entropy to be reduced by four...

ALPINE-CVE-2019-15681

LibVNC commit before d01e1bb4246323ba6fcee3b82ef1faa9b1dac82a contains a memory leak CWE-655 in VNC server code, which allow an attacker to read stack memory and can be abused for information disclosure. Combined with another vulnerability, it can be used to leak stack memory and bypass ASLR. Thi...

USN-4114-1: Linux kernel vulnerabilities

Amit Klein and Benny Pinkas discovered that the Linux kernel did not sufficiently randomize IP ID values generated for connectionless networking protocols. A remote attacker could use this to track particular Linux devices. CVE-2019-10638 Praveen Pandey discovered that the Linux kernel did not...

GNU C Library Security Bypass Vulnerability

The GNU C Library glibc, libc6 is an open-source, free C compiler released under the LGPL license. A security vulnerability exists in glibc in the GNU C Library. An attacker can exploit this vulnerability to bypass ASLR...

PT-2019-11440 · Gnu +1 · Glibc +1

Name of the Vulnerable Software and Affected Versions: GNU Libc affected versions not specified Description: The issue is related to a mitigation bypass, where an attacker may bypass ASLR using the cache of thread stack and heap. The component affected is glibc. It is noted that upstream comments...

PT-2019-11441 · Gnu +1 · Glibc +1

Name of the Vulnerable Software and Affected Versions: glibc affected versions not specified Description: The issue concerns a mitigation bypass in glibc, allowing an attacker to potentially guess the heap addresses of pthread-created threads. The vendor's stance is that ASLR bypass itself is not...

The vulnerability of the GShell.dll library in the information protection system against unauthorized access by Storm NT allows a perpetrator to bypass the ASLR protection mechanism.

The vulnerability of the GShell.dll library in the information protection system against unauthorized access is related to the incorrect implementation of address space randomization ASLR. Exploiting this vulnerability can allow an intruder acting locally to bypass the ASLR protection mechanism...

UBUNTU-CVE-2019-10639

The Linux kernel 4.x starting from 4.1 and 5.x before 5.0.8 allows Information Exposure partial kernel address disclosure, leading to a KASLR bypass. Specifically, it is possible to extract the KASLR kernel image offset using the IP ID values the kernel produces for connection-less protocols e.g....

Konan - Advanced Web Application Dir Scanner

Konan is an advanced open source tool designed to brute force directories and files names on web/application servers. Installation Download Konan by cloning the Git repository: git clone https://github.com/m4ll0k/Konan.git konan Install requirements with pip cd konan && pip install -r...

USN-4008-3 linux-lts-xenial, linux-aws vulnerabilities

USN-4008-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement HWE kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 ESM. Robert Święcki discovered that the Linux kernel did not properly apply Address Space...