CVE-2019-8320
7.4 · HIGHOverview
CVE-2019-8320 is a high-severity vulnerability affecting rubygems rubygems. It was published on June 6, 2019 and has a CVSS 3.0 base score of 7.4 (HIGH).
This vulnerability has a CVSS 3.0 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A Directory Traversal issue was discovered in RubyGems 2.7.6 and later through 3.0.2. Before making new directories or touching files (which now include path-checking code for symlinks), it would delete the target destination. If that destination was hidden behind a symlink, a malicious gem could delete arbitrary files on the user's machine, presuming the attacker could guess at paths. Given how frequently gem is run as sudo, and how predictable paths are on modern systems (/tmp, /usr, etc.), this could likely lead to data loss or an unusable system.
Remediation
Check the references section for vendor advisories and patches from rubygems. Update rubygems to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| rubygems | rubygems | 2.7.6 | Affected |
References
Frequently Asked Questions
What is CVE-2019-8320?
CVE-2019-8320 is a high-severity vulnerability affecting rubygems rubygems. It was published on June 6, 2019 and has a CVSS 3.0 base score of 7.4 (HIGH).
How severe is CVE-2019-8320?
This vulnerability has a CVSS 3.0 base score of 7.4, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2019-8320?
Check the references section for vendor advisories and patches from rubygems. Update rubygems to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2019-8320?
CyberStrike's AI-powered security agents can automatically detect CVE-2019-8320 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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