SB2017101301 - Remote code execution in RubyGems
Published: October 13, 2017
Security Bulletin ID
SB2017101301
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Deserialization of untrusted data (CVE-ID: CVE-2017-0903)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.The weakness exists due to YAML deserialization of gem specifications. A remote attacker can inject an instance of specially crafted serialized objects, gain elevated privileges and execute arbitrary Ruby code on RubyGems.org.
Successful exploitation of the vulnerability may result in system compromise.
Remediation
Install update from vendor's website.