HOMEVULNERABILITIESCVE-2018-1000073
HIGH

CVE-2018-1000073

CWE-59Published: March 13, 2018· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official Description

RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Directory Traversal vulnerability in install_location function of package.rb that can result in path traversal when writing to a symlinked basedir outside of the root. This vulnerability appears to have been fixed in 2.7.6.

NVD Source

Technical Analysis

CVE-2018-1000073 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), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

rubygems1 product(s)
rubygems
Source: NVD CPE · 1 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

PATCHhttps://github.com/rubygems/rubygems/commit/1b931fc03b819b9a0214be3eaca844ef534175e2
PATCHhttps://github.com/rubygems/rubygems/commit/1b931fc03b819b9a0214be3eaca844ef534175e2
ADVISORYhttp://blog.rubygems.org/2018/02/15/2.7.6-released.html
ADVISORYhttp://blog.rubygems.org/2018/02/15/2.7.6-released.html

All References (28)

→
http://blog.rubygems.org/2018/02/15/2.7.6-released.htmlVendor Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html
→
https://access.redhat.com/errata/RHSA-2018:3729
→
https://access.redhat.com/errata/RHSA-2018:3730
→
https://access.redhat.com/errata/RHSA-2018:3731
→
https://access.redhat.com/errata/RHSA-2019:2028
→
https://access.redhat.com/errata/RHSA-2020:0542
→
https://access.redhat.com/errata/RHSA-2020:0591
→
https://access.redhat.com/errata/RHSA-2020:0663
→
https://github.com/rubygems/rubygems/commit/1b931fc03b819b9a0214be3eaca844ef534175e2Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2018/08/msg00028.html
→
https://usn.ubuntu.com/3621-1/
→
https://www.debian.org/security/2018/dsa-4219
→
https://www.debian.org/security/2018/dsa-4259
→
http://blog.rubygems.org/2018/02/15/2.7.6-released.htmlVendor Advisory

Quick Facts

CVE IDCVE-2018-1000073
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-59
CISA KEVNo
Affected1 vendor(s)
PublishedMar 13, 2018

Related CVEs (CWE-59)

CVE-2014-4480
10.0
CVE-2024-28189
10.0
CVE-2002-2374
10.0
CVE-2024-28185
10.0
CVE-2026-44881
9.9
CVE-2018-5225
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-1000073 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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