Test ID:	1.3.6.1.4.1.25623.1.1.2.2018.1248
Category:	Huawei EulerOS Local Security Checks
Title:	Huawei EulerOS: Security Advisory for ruby (EulerOS-SA-2018-1248)
Summary:	The remote host is missing an update for the Huawei EulerOS 'ruby' package(s) announced via the EulerOS-SA-2018-1248 advisory.
Description:	Summary: The remote host is missing an update for the Huawei EulerOS 'ruby' package(s) announced via the EulerOS-SA-2018-1248 advisory. Vulnerability Insight: 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.(CVE-2017-17790) A buffer overflow vulnerability was found in the JSON extension of ruby. An attacker with the ability to pass a specially crafted JSON input to the extension could use this flaw to expose the interpreter's heap memory. (CVE-2017-14064) 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. (CVE-2017-14033) It was found that rubygems could use an excessive amount of CPU while parsing a sufficiently long gem summary. A specially crafted gem from a gem repository could freeze gem commands attempting to parse its summary. (CVE-2017-0900) It was found that rubygems did not sanitize gem names during installation of a given gem. A specially crafted gem could use this flaw to install files outside of the regular directory. (CVE-2017-0901) A vulnerability was found where rubygems did not sanitize DNS responses when requesting the hostname of the rubygems server for a domain, via a _rubygems._tcp DNS SRV query. An attacker with the ability to manipulate DNS responses could direct the gem command towards a different domain. (CVE-2017-0902) A vulnerability was found where the rubygems module was vulnerable to an unsafe YAML deserialization when inspecting a gem. Applications inspecting gem files without installing them can be tricked to execute arbitrary code in the context of the ruby interpreter. (CVE-2017-0903) 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. (CVE-2017-10784) It was discovered that the Net::FTP module did not properly process filenames in combination with certain operations. A remote attacker could exploit this flaw to execute arbitrary commands by setting up a malicious FTP server and tricking a user or Ruby application into downloading files with specially crafted names using the Net::FTP module. (CVE-2017-17405) A buffer underflow was found in ruby's sprintf function. An attacker, with ability to control its format string parameter, could send a specially crafted string that would disclose heap memory or crash the interpreter. (CVE-2017-0898) A vulnerability was found where rubygems did not properly sanitize gems' specification text. A specially crafted gem could interact with the terminal via the use of escape sequences. (CVE-2017-0899) Affected Software/OS: 'ruby' package(s) on Huawei EulerOS Virtualization 2.5.0. Solution: Please install the updated package(s). CVSS Score: 9.3 CVSS Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2017-0898 BugTraq ID: 100862 http://www.securityfocus.com/bid/100862 Debian Security Information: DSA-4031 (Google Search) https://www.debian.org/security/2017/dsa-4031 https://security.gentoo.org/glsa/201710-18 https://github.com/mruby/mruby/issues/3722 https://hackerone.com/reports/212241 https://www.ruby-lang.org/en/news/2017/09/14/sprintf-buffer-underrun-cve-2017-0898/ https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html RedHat Security Advisories: RHSA-2017:3485 https://access.redhat.com/errata/RHSA-2017:3485 RedHat Security Advisories: RHSA-2018:0378 https://access.redhat.com/errata/RHSA-2018:0378 RedHat Security Advisories: RHSA-2018:0583 https://access.redhat.com/errata/RHSA-2018:0583 RedHat Security Advisories: RHSA-2018:0585 https://access.redhat.com/errata/RHSA-2018:0585 http://www.securitytracker.com/id/1039363 https://usn.ubuntu.com/3685-1/ Common Vulnerability Exposure (CVE) ID: CVE-2017-0899 BugTraq ID: 100576 http://www.securityfocus.com/bid/100576 Debian Security Information: DSA-3966 (Google Search) https://www.debian.org/security/2017/dsa-3966 https://security.gentoo.org/glsa/201710-01 http://blog.rubygems.org/2017/08/27/2.6.13-released.html https://github.com/rubygems/rubygems/commit/1bcbc7fe637b03145401ec9c094066285934a7f1 https://github.com/rubygems/rubygems/commit/ef0aa611effb5f54d40c7fba6e8235eb43c5a491 https://hackerone.com/reports/226335 http://www.securitytracker.com/id/1039249 Common Vulnerability Exposure (CVE) ID: CVE-2017-0900 BugTraq ID: 100579 http://www.securityfocus.com/bid/100579 https://github.com/rubygems/rubygems/commit/8a38a4fc24c6591e6c8f43d1fadab6efeb4d6251 https://hackerone.com/reports/243003 Common Vulnerability Exposure (CVE) ID: CVE-2017-0901 BugTraq ID: 100580 http://www.securityfocus.com/bid/100580 https://www.exploit-db.com/exploits/42611/ https://github.com/rubygems/rubygems/commit/ad5c0a53a86ca5b218c7976765c0365b91d22cb2 https://hackerone.com/reports/243156 https://usn.ubuntu.com/3553-1/ Common Vulnerability Exposure (CVE) ID: CVE-2017-0902 BugTraq ID: 100586 http://www.securityfocus.com/bid/100586 https://github.com/rubygems/rubygems/commit/8d91516fb7037ecfb27622f605dc40245e0f8d32 https://hackerone.com/reports/218088 Common Vulnerability Exposure (CVE) ID: CVE-2017-0903 BugTraq ID: 101275 http://www.securityfocus.com/bid/101275 http://blog.rubygems.org/2017/10/09/2.6.14-released.html http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.html https://github.com/rubygems/rubygems/commit/510b1638ac9bba3ceb7a5d73135dafff9e5bab49 https://hackerone.com/reports/274990
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