SB2020072739 - Remote code execution in kramdown gem for Ruby



SB2020072739 - Remote code execution in kramdown gem for Ruby

Published: July 27, 2020

Security Bulletin ID SB2020072739
Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Improper Neutralization of Special Elements in Output Used by a Downstream Component (CVE-ID: CVE-2020-14001)

The vulnerability allows a remote attacker to execute arbitrary code on the system.

The vulnerability exists due to improper validation of input. A remote attacker can gain read access (such as template="/etc/passwd") or embedded Ruby code execution (such as a string that begins with template="string://<%= `).


Remediation

Install update from vendor's website.