The lazy_initialize function in lib/resolv.rb in Ruby

The lazyinitialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernelopen, which might allow Command Injection attacks, as demonstrated by a Resolv::Hosts::new argument beginning with a '|' character, a different vulnerability than CVE-2017-17405. NOTE: situations with untrusted input ma...

Ruby 'lazy_initialize' function command injection vulnerability

Ruby is a cross-platform, object-oriented, dynamically typed programming language developed by Japanese software developer Yukihiro Matsumoto. A command injection vulnerability exists in the 'lazyinitialize' function in the lib/resolv.rb file in Ruby 2.4.3 and earlier versions. An attacker can...

private_address_check ruby gem security restriction bypass vulnerability

privateaddresscheck ruby gem is a Ruby-based checking tool for server-side request forgery attacks. A security restriction bypass vulnerability exists in the privateaddresscheck ruby gem prior to version 0.4.0, which stems from the program's use of Ruby's Resolv.getaddresses method. An attacker...

Ruby: Resolv::getaddresses bug that can be abused to bypass security measures.

Description Resolv::getaddresses is OS-dependent, therefore by playing around with different IP formats one can return blank values. This bug can be abused to bypass exclusion lists often used to protect against SSRF. | 💻 Machine 1 | 💻 Machine 2 | |--------------|---------------| | ruby 2.3.3p222...

DEBIAN-CVE-2016-10118

Firejail allows local users to truncate /etc/resolv.conf via a chroot command to /...

F5 BIG-IP - RESOLV::lookup iRule command vulnerability CVE-2016-6876

A specially crafted reply to DNS queries from RESOLV::lookup may consume excess system resources or possibly lead to a crash and failover. SPDX-FileCopyrightText: 2016 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right...

openSUSE Security Update : glibc (openSUSE-2016-1149)

This update for glibc fixes the following issues : Security issues fixed : - arm: mark startcontext as .cantunwind CVE-2016-6323, boo994359, BZ 20435 Bugs fixed : - aarch64: Merge localmultiplethreads offset with memory reference - Fix memory leak in regexp compiler BZ 17069 - Provide correct...

CVE-2016-6876

The RESOLV::lookup iRule command in F5 BIG-IP LTM, APM, ASM, and Link Controller 10.2.1 through 10.2.4, 11.2.1, 11.4.x, 11.5.x before 11.5.4 HF2, 11.6.x before 11.6.1, and 12.0.0 before HF3; BIG-IP AAM, AFM, and PEM 11.4.x, 11.5.x before 11.5.4 HF2, 11.6.x before 11.6.1, and 12.0.0 before HF3;...

CVE-2016-6876

The RESOLV::lookup iRule command in F5 BIG-IP LTM, APM, ASM, and Link Controller 10.2.1 through 10.2.4, 11.2.1, 11.4.x, 11.5.x before 11.5.4 HF2, 11.6.x before 11.6.1, and 12.0.0 before HF3; BIG-IP AAM, AFM, and PEM 11.4.x, 11.5.x before 11.5.4 HF2, 11.6.x before 11.6.1, and 12.0.0 before HF3;...

F5 Networks BIG-IP : RESOLV::lookup iRule command vulnerability (K52638558)

A specially crafted reply to DNS queries from RESOLV::lookup may consume excess system resources or possibly lead to a crash and failover. CVE-2016-6876 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from F5 Networks BIG-IP Solution K5263855...

lib32-glibc: denial of service

CVE-2016-3075 denial of service The getnetbyname implementation in nssdns contains a potentially unbounded alloca call in the form of a call to strdupa, leading to a stack overflow stack exhaustion and a crash if getnetbyname is invoked on a very long name. - CVE-2016-5417 denial of service The...

glibc: denial of service

CVE-2016-3075 denial of service The getnetbyname implementation in nssdns contains a potentially unbounded alloca call in the form of a call to strdupa, leading to a stack overflow stack exhaustion and a crash if getnetbyname is invoked on a very long name. - CVE-2016-5417 denial of service The...

GNU C Library Code Injection Vulnerability

The GNU C Library also known as glibc, libc6 is an open-source, free C language compiler released under the LGPL license. A security vulnerability exists in the 'senddg' function in the resolv/ressend.c file in GNU C Library 2.20 and earlier versions, which stems from the program failing to...

DEBIAN-CVE-2013-7423

The senddg function in resolv/ressend.c in GNU C Library aka glibc or libc6 before 2.20 does not properly reuse file descriptors, which allows remote attackers to send DNS queries to unintended locations via a large number of requests that trigger a call to the getaddrinfo function...

Fake DNS Service

This module provides a DNS service that redirects all queries to a particular address. This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework require 'resolv' class MetasploitModule 'Fake DNS Service', 'Description' = %q Thi...

DNS vulnerabilities to attack the Ruby code-vulnerability warning-the black bar safety net

1 require 'msf/core' 2 require 'net/dns' 3 require 'scruby' 4 require 'resolv' 5 6 module Msf 7 8 class Auxiliary::Spoof::Dns::BaliWickedHost Msf::Auxiliary 9 1 0 The include Exploit::Remote::Ip 1 1 1 2 def initializeinfo = 1 3 superupdateinfoinfo, 1 4 'Name' = 'DNS BaliWicked Attack', 1 5...

DEBIAN-CVE-2008-5367

ip-up in ppp-udeb 2.4.4rel on Debian GNU/Linux allows local users to overwrite arbitrary files via a symlink attack on the /tmp/resolv.conf.tmp temporary file...

ruby: use of predictable source port and transaction id in DNS requests done by resolv.rb module

resolv.rb in Ruby 1.8.5 and earlier, 1.8.6 before 1.8.6-p287, 1.8.7 before 1.8.7-p72, and 1.9 r18423 and earlier uses sequential transaction IDs and constant source ports for DNS requests, which makes it easier for remote attackers to spoof DNS responses, a different vulnerability than...

ruby: use of predictable source port and transaction id in DNS requests done by resolv.rb module

resolv.rb in Ruby 1.8.5 and earlier, 1.8.6 before 1.8.6-p287, 1.8.7 before 1.8.7-p72, and 1.9 r18423 and earlier uses sequential transaction IDs and constant source ports for DNS requests, which makes it easier for remote attackers to spoof DNS responses, a different vulnerability than...

Debian DSA-1652-1 : ruby1.9 - several vulnerabilities

Several vulnerabilities have been discovered in the interpreter for the Ruby language, which may lead to denial of service and other security problems. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2008-3655 Keita Yamaguchi discovered that several safe...