CVSS: 7.5EPSS: 0%CPEs: 16EXPL: 0CVE-2018-8777 – ruby: DoS by large request in WEBrick
https://notcve.org/view.php?id=CVE-2018-8777
In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, an attacker can pass a large HTTP request with a crafted header to WEBrick server or a crafted body to WEBrick server/handler and cause a denial of service (memory consumption). En Ruby, en versiones anteriores a la 2.2.10, versiones 2.3.x anteriores a la 2.3.7, versiones 2.4.x anteriores a la 2.4.4, versiones 2.5.x anteriores a la 2.5.1 y la versión 2.6.0-preview1, un atacante puede pasar una petición HTTP larga con una cabecera manipulada al servidor WEBrick o un cuerpo manipulado al servidor/manipulador WEBrick y provocar una denegación de servicio (consumo de memoria). It was found that WEBrick could be forced to use an excessive amount of memory during the processing of HTTP requests, leading to a Denial of Service. An attacker could use this flaw to send huge requests to a WEBrick application, resulting in the server running out of memory. • http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html http://www.securityfocus.com/bid/103683 http://www.securitytracker.com/id/1042004 https://access.redhat.com/errata/RHSA-2018:3729 https://access.redhat.com/errata/RHSA-2018:3730 https://access.redhat.com/errata/RHSA-2018:3731 https://access.redhat.com/errata/RHSA-2019:2028 https://access.redhat.com/errata/RHSA-2020:0542 https://access.redhat.com/errata/RHSA-2020:0591 https://access.redhat.com/errata&#x • CWE-400: Uncontrolled Resource Consumption •
CVSS: 9.8EPSS: 2%CPEs: 4EXPL: 1CVE-2017-17790 – ruby: Command injection in lib/resolv.rb:lazy_initialize() allows arbitrary code execution
https://notcve.org/view.php?id=CVE-2017-17790
The lazy_initialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernel#open, 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 may be highly unlikely. La función lazy_initialize en lib/resolv.rb en Ruby hasta la versión 2.4.3 utiliza Kernel#open, lo que podría permitir ataques de inyección de comandos, tal y como demuestra un argumento Resolv::Hosts::new que comience con un carácter "|". Esta es una vulnerabilidad diferente a CVE-2017-17405. NOTA: es altamente improbable que se den situaciones con entradas no fiables. • https://access.redhat.com/errata/RHSA-2018:0378 https://access.redhat.com/errata/RHSA-2018:0583 https://access.redhat.com/errata/RHSA-2018:0584 https://access.redhat.com/errata/RHSA-2018:0585 https://github.com/ruby/ruby/pull/1777 https://lists.debian.org/debian-lts-announce/2017/12/msg00024.html https://lists.debian.org/debian-lts-announce/2017/12/msg00025.html https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html https://www.debian.org/security/2018/ds • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') •
CVSS: 9.3EPSS: 89%CPEs: 17EXPL: 1CVE-2017-17405 – Ruby < 2.2.8 / < 2.3.5 / < 2.4.2 / < 2.5.0-preview1 - 'NET::Ftp' Command Injection
https://notcve.org/view.php?id=CVE-2017-17405
Ruby before 2.4.3 allows Net::FTP command injection. Net::FTP#get, getbinaryfile, gettextfile, put, putbinaryfile, and puttextfile use Kernel#open to open a local file. If the localfile argument starts with the "|" pipe character, the command following the pipe character is executed. The default value of localfile is File.basename(remotefile), so malicious FTP servers could cause arbitrary command execution. Ruby en versiones anteriores a la 2.4.3 permite la inyección de comandos Net::FTP. • https://www.exploit-db.com/exploits/43381 http://www.securityfocus.com/bid/102204 http://www.securitytracker.com/id/1042004 https://access.redhat.com/errata/RHSA-2018:0378 https://access.redhat.com/errata/RHSA-2018:0583 https://access.redhat.com/errata/RHSA-2018:0584 https://access.redhat.com/errata/RHSA-2018:0585 https://access.redhat.com/errata/RHSA-2019:2806 https://lists.debian.org/debian-lts-announce/2017/12/msg00024.html https://lists.debian.org/debian-lts-announce • CWE-20: Improper Input Validation CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') •
CVSS: 7.5EPSS: 1%CPEs: 24EXPL: 0CVE-2017-14033 – ruby: Buffer underrun in OpenSSL ASN1 decode
https://notcve.org/view.php?id=CVE-2017-14033
The decode method in the OpenSSL::ASN1 module in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows attackers to cause a denial of service (interpreter crash) via a crafted string. El método decode en el módulo OpenSSL::ASN1 en Ruby en versiones anteriores a la 2.2.8, versiones 2.3.x anteriores a 2.3.5, y 2.4.x hasta la 2.4.1 permite que los atacantes provoquen una denegación de servicio (cierre inesperado del intérprete) mediante una string manipulada. It was found that the decode method of the OpenSSL::ASN1 module was vulnerable to buffer underrun. An attacker could pass a specially crafted string to the application in order to crash the ruby interpreter, causing a denial of service. • http://www.securityfocus.com/bid/100868 http://www.securitytracker.com/id/1039363 http://www.securitytracker.com/id/1042004 https://access.redhat.com/errata/RHSA-2018:0378 https://access.redhat.com/errata/RHSA-2018:0583 https://access.redhat.com/errata/RHSA-2018:0585 https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html https://security.gentoo.org/glsa/201710-18 https://www.debian.org/security/2017/dsa-4031 https://www.ruby-lang.org/en/news/2017/09/ • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 9.3EPSS: 0%CPEs: 14EXPL: 0CVE-2017-10784 – ruby: Escape sequence injection vulnerability in the Basic authentication of WEBrick
https://notcve.org/view.php?id=CVE-2017-10784
The Basic authentication code in WEBrick library in Ruby before 2.2.8, 2.3.x before 2.3.5, and 2.4.x through 2.4.1 allows remote attackers to inject terminal emulator escape sequences into its log and possibly execute arbitrary commands via a crafted user name. El código de autenticación Basic en la biblioteca WEBrick en Ruby en versiones anteriores a la 2.2.8, 2.3.x anteriores a la 2.3.5 y 2.4.x hasta la 2.4.1 permite que atacantes remotos inyecten secuencias de escape del emulador del terminal en su registro y que puedan ejecutar comandos arbitrarios mediante un nombre de usuario manipulado. It was found that WEBrick did not sanitize all its log messages. If logs were printed in a terminal, an attacker could interact with the terminal via the use of escape sequences. • http://www.securityfocus.com/bid/100853 http://www.securitytracker.com/id/1039363 http://www.securitytracker.com/id/1042004 https://access.redhat.com/errata/RHSA-2017:3485 https://access.redhat.com/errata/RHSA-2018:0378 https://access.redhat.com/errata/RHSA-2018:0583 https://access.redhat.com/errata/RHSA-2018:0585 https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html https://security.gentoo.org/glsa/201710-18 https://usn.ubuntu.com/3528-1 https://usn&# • CWE-117: Improper Output Neutralization for Logs CWE-287: Improper Authentication •