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CVE-2019-18409

HIGH

7.8

CVSS Score

Published: October 24, 2019 at 01:59 PM UTC

Updated: June 17, 2026 at 02:24 AM UTC

1 product affected across 1 vendorRuby Parser Legacy

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Severity

HIGH7.8

Exploit prediction

EPSS 0.3%

Description

The ruby_parser-legacy (aka legacy) gem 1.0.0 for Ruby allows local privilege escalation because of world-writable files. For example, if the brakeman gem (which has a legacy dependency) 4.5.0 through 4.7.0 is used, a local user can insert malicious code into the ruby_parser-legacy-1.0.0/lib/ruby_parser/legacy/ruby_parser.rb file.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ruby Parser Legacy · Zenspiderrubygems

95%

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

x_refsource_MISCExploitIssue TrackingThird Party Advisory

Source: [email protected]

https://github.com/zenspider/ruby_parser-legacy/issues/1

CVSS

7.8HIGH[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-732

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