THREATPORT/VULNERABILITY/CVE-2013-0269
HIGH SEVERITY

CVE-2013-0269

Json Gem vulnerability

CVSS
7.5
EPSS
13.9%
EPSS pct
96th
Exploited
No known
The JSON gem before 1.5.5, 1.6.x before 1.6.8, and 1.7.x before 1.7.7 for Ruby allows remote attackers to cause a denial of service (resource consumption) or bypass the mass assignment protection mechanism via a crafted JSON document that triggers the creation of arbitrary Ruby symbols or certain internal objects, as demonstrated by conducting a SQL injection attack against Ruby on Rails, aka "Unsafe Object Creation Vulnerability."
Affected vendor
Rubygems
Affected product
Json Gem
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness type (CWE)
  • CWE-20 — Improper Input Validation
Published
2013-02-13

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality, partial impact to integrity, partial impact to availability.

Its EPSS score of 13.9% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2013-0269

  • Confirm whether Rubygems Json Gem is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2013-0269.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2013-0269

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2013-0269 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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