rubygems -- multiple vulnerabilities

Official blog of RubyGems reports: The following vulnerabilities have been reported: a DNS request hijacking vulnerability, an ANSI escape sequence vulnerability, a DoS vulnerability in the query command, and a vulnerability in the gem installer that allowed a malicious gem to overwrite arbitrary...

RubyGems DoS vulnerability in the query command

RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications to cause a denial of service attack against RubyGems clients who have issued a query command...

CVE-2017-1000037

RVM automatically loads environment variables from files in $PWD resulting in command execution RVM vulnerable to command injection when automatically loading environment variables from files in $PWD RVM automatically executes hooks located in $PWD resulting in code execution RVM automatically...

CVE-2017-1000037

CVE-2017-1000037 (RVM) : The connected sources document a code-execution/command-injection vulnerability in the Ruby Version Manager (RVM) where environment variables are automatically loaded from files in the current working directory ($PWD). This behavior allows arbitrary code execution when im...

Remediation Workflow Now Integrates with ServiceNow

Today were sharing an update to Remediation Workflow Ticketing capabilities. We are pleased to announce that Remediation Workflow in InsightVM now integrates with ServiceNow. One of the main benefits of Remediation Workflow Ticketing is to improve collaboration between security and remediation...

Denial Of Service (DoS) Through Memory Consumption

The nokogiri gem is using libxml2 which is vulnerable to a denial of service DoS vulnerability. It is possible because the xmlSkipBlankChars method does not properly handle the blank characters from the XML input streams, leading to a recursive loop and high memory consumption. This can cause the...

RubyGems: Installing a crafted gem package may create or overwrite files

There is no check for name field in metadata.gz. By assigning a maliciously crafted string like ../../../../../any/where to the field, an attacker can create an arbitrary file out of the directory of the gem, or even replace an existing file with a malicious file. Proof of Concept 1: Create a fil...

RubyGems: No limit of summary length allows Denail of Service

Currently, there is no limit for summary length. I think, pushing a gem whose summary is huge, will make gem search unavailable. This is not Arbitrary Code Execution, but really easy to attack. According to CVSS v3.0 Calculator, the severity is High 7.5. How to attack 1 An attacker creates a gem...

Command injection

The mail gem before 2.5.5 for Ruby aka A Really Ruby Mail Library is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring...

CVE-2015-9097

The mail gem before 2.5.5 for Ruby aka A Really Ruby Mail Library is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring...

CVE-2015-9097

The mail gem before 2.5.5 for Ruby aka A Really Ruby Mail Library is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring...

DEBIAN-CVE-2015-9097

The mail gem before 2.5.5 for Ruby aka A Really Ruby Mail Library is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring...

CVE-2015-9097

The mail gem before 2.5.5 for Ruby aka A Really Ruby Mail Library is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring...

CVE-2015-9097

The mail gem before 2.5.5 for Ruby aka A Really Ruby Mail Library is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring...

CVE-2015-9097

The CVE-2015-9097 entry affects the Ruby mail gem (aka A Really Ruby Mail Library) prior to 2.5.5. The vulnerability is a SMTP command injection via CRLF sequences in RCPT TO or MAIL FROM commands, demonstrated by CRLF sequences around a DATA substring. This is a concrete vulnerability in the mai...

CVE-2015-9097

The mail gem before 2.5.5 for Ruby aka A Really Ruby Mail Library is vulnerable to SMTP command injection via CRLF sequences in a RCPT TO or MAIL FROM command, as demonstrated by CRLF sequences immediately before and after a DATA substring...

Denial Of Service (DoS) Through Embedded C Library

The nokogiri gem is using libxml2 which is vulnerable to CVE-2016-3627. CVE-2016-3627 is a denial of service DoS vulnerability. It is possible because the xmlStringGetNodeList and xmlParserEntityCheck functions fail to detect a recursive loop when it is used in recovery mode, causing stack...

Use-after-free Vulnerability

nokogiri gem is using libxml2 which is vulnerable to use-after-free vulnerability. The vulnerability exists because libxml2 fails to properly validate and handle the attribute strings in the xmlSAX2AttributeNs function which allows an attacker to cause a memory corruption which leads to an...

Heap-based Buffer Overread

The nokogiri gem contains a libxml2 package which is vulnerable to a heap-based buffer overread vulnerability. The vulnerability in libxml2 is referenced as CVE-2016-1833. Using a flaw in the htmlCurrentChar function, attackers can trigger the vulnerability using malicious XML input...

Heap-Based Buffer Overflow In Libxml2

nokogiri gem is using libxml2 which is vulnerable to CVE-2016-1834. The vulnerability exists when xmlStrlen returns a negative length in the xmlStrncat function. Therefore, it may lead to other attacks such as denial of service or arbitrary code execution through a heap-based buffer overflow usin...