SB2023072022 - Multiple vulnerabilities in HashiCorp Nomad and Nomad Enterprise



SB2023072022 - Multiple vulnerabilities in HashiCorp Nomad and Nomad Enterprise

Published: July 20, 2023

Security Bulletin ID SB2023072022
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Information disclosure

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Input validation error (CVE-ID: CVE-2023-3072)

CWE-ID: CWE-20 - Improper input validation

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


The vulnerability allows a remote user to compromise the target system.

The vulnerability exists due to ACL policies using a block without a label which generates unexpected results. A remote administrator can create policies that allow access to unintended resources.


2) Information disclosure (CVE-ID: CVE-2023-3299)

CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor

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


The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the API caller’s ACL token secret ID is exposed to Sentinel policies. A remote attacker can gain unauthorized access to sensitive information on the system.


Remediation

Install update from vendor's website.