HOMEVULNERABILITIESCVE-2017-0902
HIGH

CVE-2017-0902

CWE-350Published: August 31, 2017· Updated: Jun 17, 2026

8.1
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2017-0902 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

Canonical1 product(s)
ubuntu linux
Debian1 product(s)
debian linux
Red Hat6 product(s)
enterprise linux desktopenterprise linux serverenterprise linux server ausenterprise linux server eusenterprise linux server tusenterprise linux workstation
rubygems1 product(s)
rubygems
Source: NVD CPE · 16 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://blog.rubygems.org/2017/08/27/2.6.13-released.html
PATCHhttps://github.com/rubygems/rubygems/commit/8d91516fb7037ecfb27622f605dc40245e0f8d32
PATCHhttp://blog.rubygems.org/2017/08/27/2.6.13-released.html
PATCHhttps://github.com/rubygems/rubygems/commit/8d91516fb7037ecfb27622f605dc40245e0f8d32
ADVISORYhttp://www.securityfocus.com/bid/100586
ADVISORYhttp://www.securitytracker.com/id/1039249
ADVISORYhttps://access.redhat.com/errata/RHSA-2017:3485
ADVISORYhttps://access.redhat.com/errata/RHSA-2018:0378
ADVISORYhttps://access.redhat.com/errata/RHSA-2018:0583
ADVISORYhttps://access.redhat.com/errata/RHSA-2018:0585
ADVISORYhttps://hackerone.com/reports/218088
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
ADVISORYhttps://security.gentoo.org/glsa/201710-01
ADVISORYhttps://usn.ubuntu.com/3553-1/
ADVISORYhttps://usn.ubuntu.com/3685-1/
ADVISORYhttps://www.debian.org/security/2017/dsa-3966
ADVISORYhttp://www.securityfocus.com/bid/100586
ADVISORYhttp://www.securitytracker.com/id/1039249
ADVISORYhttps://access.redhat.com/errata/RHSA-2017:3485
ADVISORYhttps://access.redhat.com/errata/RHSA-2018:0378
ADVISORYhttps://access.redhat.com/errata/RHSA-2018:0583
ADVISORYhttps://access.redhat.com/errata/RHSA-2018:0585
ADVISORYhttps://hackerone.com/reports/218088
ADVISORYhttps://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
ADVISORYhttps://security.gentoo.org/glsa/201710-01
ADVISORYhttps://usn.ubuntu.com/3553-1/
ADVISORYhttps://usn.ubuntu.com/3685-1/
ADVISORYhttps://www.debian.org/security/2017/dsa-3966

All References (28)

→
http://blog.rubygems.org/2017/08/27/2.6.13-released.htmlPatch · Vendor Advisory
→
http://www.securityfocus.com/bid/100586Third Party Advisory · VDB Entry
→
http://www.securitytracker.com/id/1039249Third Party Advisory · VDB Entry
→
https://access.redhat.com/errata/RHSA-2017:3485Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2018:0378Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2018:0583Third Party Advisory
→
https://access.redhat.com/errata/RHSA-2018:0585Third Party Advisory
→
https://github.com/rubygems/rubygems/commit/8d91516fb7037ecfb27622f605dc40245e0f8d32Exploit · Patch · Third Party Advisory
→
https://hackerone.com/reports/218088Exploit · Issue Tracking · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlMailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/201710-01Third Party Advisory
→
https://usn.ubuntu.com/3553-1/Third Party Advisory
→
https://usn.ubuntu.com/3685-1/Third Party Advisory
→
https://www.debian.org/security/2017/dsa-3966Third Party Advisory
→
http://blog.rubygems.org/2017/08/27/2.6.13-released.htmlPatch · Vendor Advisory

Quick Facts

CVE IDCVE-2017-0902
CVSS Score8.1 / 10
SeverityHIGH
WeaknessCWE-350
CISA KEVNo
Affected4 vendor(s)
PublishedAug 31, 2017

Related CVEs (CWE-350)

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CVE-2023-52235
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CVE-2018-7160
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CVE-2021-34561
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CVE-2025-8036
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CVE-2021-22884
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Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-0902 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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