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CVE-2017-0902

Good to know:

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Date: August 31, 2017

RubyGems version 2.6.12 and earlier is vulnerable to a DNS hijacking vulnerability that allows a MITM attacker to force the RubyGems client to download and install gems from a server that the attacker controls.

Language: Ruby

Severity Score

Related Resources (24)

https://usn.ubuntu.com/3553-1/
https://usn.ubuntu.com/3685-1/
https://security.alpinelinux.org/vuln/CVE-2017-0902
https://security-tracker.debian.org/tracker/CVE-2017-0902
https://access.redhat.com/security/cve/CVE-2017-0902
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
https://access.redhat.com/errata/RHSA-2017:3485
https://www.debian.org/security/2017/dsa-3966
https://github.com/rubygems/rubygems/commit/8d91516fb7037ecfb27622f605dc40245e0f8d32
https://usn.ubuntu.com/3685-1
https://web.archive.org/web/20170907215801/http://www.securitytracker.com/id/1039249
http://www.securitytracker.com/id/1039249
http://www.securityfocus.com/bid/100586
https://nvd.nist.gov/vuln/detail/CVE-2017-0902
https://security.gentoo.org/glsa/201710-01
http://blog.rubygems.org/2017/08/27/2.6.13-released.html
https://access.redhat.com/errata/RHSA-2018:0585
https://access.redhat.com/errata/RHSA-2018:0378
https://web.archive.org/web/20170907040741/http://www.securityfocus.com/bid/100586
https://hackerone.com/reports/218088
https://usn.ubuntu.com/3553-1
https://access.redhat.com/errata/RHSA-2018:0583
https://github.com/rubygems/rubygems
https://www.mend.io/vulnerability-database/CVE-2017-0902

Severity Score

Weakness Type (CWE)

Improper Access Control

CWE-284

Origin Validation Error

CWE-346

Reliance on Reverse DNS Resolution for a Security-Critical Action

CWE-350

Top Fix

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Upgrade Version

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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