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rubygemsRubySecRUBY:RUBY-2017-17790
HistoryDec 19, 2017 - 9:00 p.m.

The lazy_initialize function in lib/resolv.rb in Ruby

2017-12-1921:00:00
RubySec
nvd.nist.gov
13

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.895

Percentile

98.8%

JSON

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.

CWE: CWE-74 - Improper Neutralization of Special Elements

CVSS_V3: 9.8 - CRITICAL - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected configurations

Vulners
Node
rubyrubyRange2.2.0–2.2.8
OR
rubyrubyRange2.3.0–2.3.5
OR
rubyrubyRange≤2.4.3
VendorProductVersionCPE
rubyruby*cpe:2.3:a:ruby:ruby:*:*:*:*:*:*:*:*

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freebsd 1
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exploitpack 1
gentoo 1
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veracode 2
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oraclelinux 1
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CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.895

Percentile

98.8%

JSON
Related for RUBY:RUBY-2017-17790
openvas19nessus44redhat5ubuntucve2mageia1osv6debiancve2debian4cvelist2cve2nvd2prion2photon7freebsd1seebug1exploitpack1gentoo1redhatcve2veracode2slackware1rubygems1zdt1alpinelinux1checkpoint_advisories1hackerone1exploitdb1ubuntu2ibm1oraclelinux1centos1fedora2amazon2apple4