RubyGems Improper Input Validation Vulnerability [CVE-2018-1000077]

CVE Number – CVE-2018-1000077

A vulnerability in RubyGems could allow an unauthenticated, remote attacker to modify the homepage URL on a targeted system.

The vulnerability is due to improper URL validation of the specification homepage attribute by the affected software. An attacker could exploit this vulnerability by persuading a user to install a malicious RubyGems gem on a targeted system. A successful exploit could allow the attacker to set an invalid homepage URL on the targeted system.

The vendor has confirmed the vulnerability in a security advisory and released software updates.

Analysis
  • To exploit this vulnerability, the attacker may use misleading language or instructions to persuade a user to open or execute a malicious file.
Safeguards
  • Administrators are advised to apply the appropriate updates.

    Administrators are advised to allow only trusted users to have network access.

    Users are advised not to open email messages from suspicious or unrecognized sources. If users cannot verify that links or attachments included in email messages are safe, they are advised not to open them.

    Administrators are advised to monitor affected systems.

Vendor Announcements
Fixed Software
  • The vendor has released software updates at the following link: RubyGems 2.7.6





Leave a Reply