SB2020040819 - Path traversal in Slack Nebula



SB2020040819 - Path traversal in Slack Nebula

Published: April 8, 2020 Updated: April 9, 2020

Security Bulletin ID SB2020040819
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Path traversal (CVE-ID: CVE-2020-11498)

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in "tun_darwin.go" and "tun_windows.go" file. A remote authenticated attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Successful exploitation of this vulnerability may lead to remote code execution.


Remediation

Install update from vendor's website.