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TI-2017-00850 Aliases CVE-2017-0902GHSA-73w7-6w9g-gc8w

Origin validation error in HackerOne RubyGems

Priority MEDIUM 43CWE-350Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 17 fixed, 4 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-346.

Summary

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.

Why it matters now

EPSS 0.0475 91st percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Partial RubyGems (HackerOne): 2.6.13rubygems-update (RubyGems): 2.6.13Red Hat: 4 advisoriesRed Hat: 17 fixed, 4 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
HackerOneRubyGemsbefore 2.6.132.6.13Patch availableCNA
—rubygems-update (RubyGems)before 2.6.132.6.13Patch availableGHSA-73w7-6w9g-gc8w
  • RubyGems VendorHackerOne Affected before 2.6.13 Fixed in 2.6.13 Patch available CNA
  • rubygems-update (RubyGems) Vendor— Affected before 2.6.13 Fixed in 2.6.13 Patch available GHSA-73w7-6w9g-gc8w

CPE configurations NVD · 16

CPEVersionsRoleVendor
cpe:2.3:a:rubygems:rubygems:*:*:*:*:*:*:*:*up to 2.6.12Vulnerablerubygems
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*17.10VulnerableCanonical
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
  • cpe:2.3:a:rubygems:rubygems:*:*:*:*:*:*:*:* Versions up to 2.6.12 Vulnerable ·rubygems
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* Versions 17.10 Vulnerable ·Canonical
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
Show 6 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat

Remediation

  • Fix · CNA RubyGems (HackerOne) Fixed in 2.6.13
  • Fix · GHSA-73w7-6w9g-gc8w rubygems-update (RubyGems) Fixed in 2.6.13 Advisory →

Red Hat 4 advisories

  • RHSA-2018:0585 Released 2018-03-26 · Red Hat rating Important
    rh-ruby23-ruby security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-ruby23-ruby-2.3.6-67.el6, rh-ruby23-ruby-devel-2.3.6-67.el6, rh-ruby23-ruby-doc-2.3.6-67.el6 +16
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-ruby23-ruby-2.3.6-67.el7, rh-ruby23-ruby-devel-2.3.6-67.el7, rh-ruby23-ruby-doc-2.3.6-67.el7 +16
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) rh-ruby23-ruby-2.3.6-67.el6, rh-ruby23-ruby-devel-2.3.6-67.el6, rh-ruby23-ruby-doc-2.3.6-67.el6 +16
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3) rh-ruby23-ruby-2.3.6-67.el7, rh-ruby23-ruby-devel-2.3.6-67.el7, rh-ruby23-ruby-doc-2.3.6-67.el7 +16
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) rh-ruby23-ruby-2.3.6-67.el7, rh-ruby23-ruby-devel-2.3.6-67.el7, rh-ruby23-ruby-doc-2.3.6-67.el7 +16
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-ruby23-ruby-2.3.6-67.el6, rh-ruby23-ruby-devel-2.3.6-67.el6, rh-ruby23-ruby-doc-2.3.6-67.el6 +16
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-ruby23-ruby-2.3.6-67.el7, rh-ruby23-ruby-devel-2.3.6-67.el7, rh-ruby23-ruby-doc-2.3.6-67.el7 +16
  • RHSA-2018:0583 Released 2018-03-26 · Red Hat rating Important
    rh-ruby22-ruby security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-ruby22-ruby-2.2.9-19.el6, rh-ruby22-ruby-devel-2.2.9-19.el6, rh-ruby22-ruby-doc-2.2.9-19.el6 +14
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-ruby22-ruby-2.2.9-19.el7, rh-ruby22-ruby-devel-2.2.9-19.el7, rh-ruby22-ruby-doc-2.2.9-19.el7 +14
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) rh-ruby22-ruby-2.2.9-19.el6, rh-ruby22-ruby-devel-2.2.9-19.el6, rh-ruby22-ruby-doc-2.2.9-19.el6 +14
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3) rh-ruby22-ruby-2.2.9-19.el7, rh-ruby22-ruby-devel-2.2.9-19.el7, rh-ruby22-ruby-doc-2.2.9-19.el7 +14
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) rh-ruby22-ruby-2.2.9-19.el7, rh-ruby22-ruby-devel-2.2.9-19.el7, rh-ruby22-ruby-doc-2.2.9-19.el7 +14
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-ruby22-ruby-2.2.9-19.el6, rh-ruby22-ruby-devel-2.2.9-19.el6, rh-ruby22-ruby-doc-2.2.9-19.el6 +14
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-ruby22-ruby-2.2.9-19.el7, rh-ruby22-ruby-devel-2.2.9-19.el7, rh-ruby22-ruby-doc-2.2.9-19.el7 +14
  • RHSA-2018:0378 Released 2018-02-28 · Red Hat rating Important
    ruby security update
    • Red Hat Enterprise Linux Client (v. 7) ruby-2.0.0.648-33.el7_4, ruby-irb-2.0.0.648-33.el7_4, ruby-libs-2.0.0.648-33.el7_4 +6
    • Red Hat Enterprise Linux Client Optional (v. 7) ruby-devel-2.0.0.648-33.el7_4, ruby-doc-2.0.0.648-33.el7_4, ruby-tcltk-2.0.0.648-33.el7_4 +3
    • Red Hat Enterprise Linux ComputeNode (v. 7) ruby-2.0.0.648-33.el7_4, ruby-irb-2.0.0.648-33.el7_4, ruby-libs-2.0.0.648-33.el7_4 +6
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) ruby-devel-2.0.0.648-33.el7_4, ruby-doc-2.0.0.648-33.el7_4, ruby-tcltk-2.0.0.648-33.el7_4 +3
    • Red Hat Enterprise Linux Server (v. 7) ruby-2.0.0.648-33.el7_4, ruby-irb-2.0.0.648-33.el7_4, ruby-libs-2.0.0.648-33.el7_4 +7
    • Red Hat Enterprise Linux Server Optional (v. 7) ruby-devel-2.0.0.648-33.el7_4, ruby-doc-2.0.0.648-33.el7_4, ruby-tcltk-2.0.0.648-33.el7_4 +3
    • Red Hat Enterprise Linux Workstation (v. 7) ruby-2.0.0.648-33.el7_4, ruby-irb-2.0.0.648-33.el7_4, ruby-libs-2.0.0.648-33.el7_4 +6
    • Red Hat Enterprise Linux Workstation Optional (v. 7) ruby-devel-2.0.0.648-33.el7_4, ruby-doc-2.0.0.648-33.el7_4, ruby-tcltk-2.0.0.648-33.el7_4 +3
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) ruby-2.0.0.648-33.el7_4, ruby-irb-2.0.0.648-33.el7_4, ruby-libs-2.0.0.648-33.el7_4 +6
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) ruby-devel-2.0.0.648-33.el7_4, ruby-doc-2.0.0.648-33.el7_4, ruby-tcltk-2.0.0.648-33.el7_4 +3
Show 1 more Red Hat advisories
  • RHSA-2017:3485 Released 2017-12-19 · Red Hat rating Moderate
    rh-ruby24-ruby security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-ruby24-ruby-2.4.2-86.el6, rh-ruby24-ruby-devel-2.4.2-86.el6, rh-ruby24-ruby-doc-2.4.2-86.el6 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-ruby24-ruby-2.4.2-86.el7, rh-ruby24-ruby-devel-2.4.2-86.el7, rh-ruby24-ruby-doc-2.4.2-86.el7 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) rh-ruby24-ruby-2.4.2-86.el6, rh-ruby24-ruby-devel-2.4.2-86.el6, rh-ruby24-ruby-doc-2.4.2-86.el6 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3) rh-ruby24-ruby-2.4.2-86.el7, rh-ruby24-ruby-devel-2.4.2-86.el7, rh-ruby24-ruby-doc-2.4.2-86.el7 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4) rh-ruby24-ruby-2.4.2-86.el7, rh-ruby24-ruby-devel-2.4.2-86.el7, rh-ruby24-ruby-doc-2.4.2-86.el7 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-ruby24-ruby-2.4.2-86.el6, rh-ruby24-ruby-devel-2.4.2-86.el6, rh-ruby24-ruby-doc-2.4.2-86.el6 +17
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-ruby24-ruby-2.4.2-86.el7, rh-ruby24-ruby-devel-2.4.2-86.el7, rh-ruby24-ruby-doc-2.4.2-86.el7 +17

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Advisory ·

    HackerOne RubyGems — GLSA-201710-01

    3 records Highest priority Priority MEDIUM 3 MEDIUM

    Other records, highest priority first

    • TI-2017-00849 Path traversal in HackerOne RubyGemsPriority MEDIUM 56
    • TI-2017-00847 Code injection in HackerOne RubyGemsPriority MEDIUM 55
    Show all 3 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise MRG 2Affected—
Red Hat Satellite 6Affected—
Red Hat Subscription Asset ManagerAffected—
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:0378
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:0378
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2018:0378
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2018:0378
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:0378
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2018:0378
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:0378
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2018:0378
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2018:0378
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2018:0378
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2017:3485, RHSA-2018:0583, RHSA-2018:0585
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:3485, RHSA-2018:0583, RHSA-2018:0585
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7)Fixed RHSA-2017:3485, RHSA-2018:0583, RHSA-2018:0585
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3)Fixed RHSA-2017:3485, RHSA-2018:0583, RHSA-2018:0585
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.4)Fixed RHSA-2017:3485, RHSA-2018:0583, RHSA-2018:0585
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2017:3485, RHSA-2018:0583, RHSA-2018:0585
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:3485, RHSA-2018:0583, RHSA-2018:0585

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-0902
  2. 2026-10-03 Alias added: GHSA-73w7-6w9g-gc8w

References

Exploit 2

Patch 1

Advisory 10

Other 5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences