CVE-2019-18409 — HIGH (7.8)

Vulnerability 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.

CVSS Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Zenspider	Ruby Parser-Legacy	1.0.0

Related Weaknesses (CWE)

CWE-732

References

https://github.com/zenspider/ruby_parser-legacy/issues/1ExploitIssue TrackingThird Party Advisory
https://github.com/zenspider/ruby_parser-legacy/issues/1ExploitIssue TrackingThird Party Advisory

FAQ

What is CVE-2019-18409?

CVE-2019-18409 is a vulnerability with a CVSS score of 7.8 (HIGH). 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...

How severe is CVE-2019-18409?

CVE-2019-18409 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-18409?

Check the references section above for vendor advisories and patch information. Affected products include: Zenspider Ruby Parser-Legacy.