SB2018021211 - Information disclosure in Sinatra



SB2018021211 - Information disclosure in Sinatra

Published: February 12, 2018

Security Bulletin ID SB2018021211
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Path traversal (CVE-ID: CVE-2018-7212)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote unauthenticated attacker to obtain potentially sensitive information on the target system.

The weakness exists due to insufficient path validation in the rack-protection feature when running on Microsoft Windows systems. A remote attacker can send a specially crafted request with a series of backslash characters, trigger path traversal and access potentially sensitive information.


Remediation

Install update from vendor's website.