THREATPORT/VULNERABILITY/CVE-2017-0900
HIGH SEVERITY

CVE-2017-0900

Rubygems vulnerability

CVSS
7.5
EPSS
8.5%
EPSS pct
94th
Exploited
No known
RubyGems version 2.6.12 and earlier is vulnerable to maliciously crafted gem specifications to cause a denial of service attack against RubyGems clients who have issued a `query` command.
Affected vendor
Rubygems
Affected product
Rubygems
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2017-08-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 8.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2017-0900

  • Confirm whether Rubygems Rubygems is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-0900.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-0900

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-0900 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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