Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2021-32756

Severity CVSS v4.0:
Pending analysis
Type:
CWE-94 Code Injection
Publication date:
21/07/2021
Last modified:
02/07/2022

Description

ManageIQ is an open-source management platform. In versions prior to jansa-4, kasparov-2, and lasker-1, there is a flaw in the MiqExpression module of ManageIQ where a low privilege user could enter a crafted Ruby string which would be evaluated. Successful exploitation will allow an attacker to execute arbitrary code with root privileges on the host system. There are patches for this issue in releases named jansa-4, kasparov-2, and lasker-1. If possible, restrict users, via RBAC, to only the part of the application that they need access to. While MiqExpression is widely used throughout the product, restricting users can limit the surface of the attack.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.80
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:S/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 9.00 HIGH
Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): Single
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0
9.00
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:manageiq:manageiq:jansa-1:-:*:*:*:*:*:*
cpe:2.3:a:manageiq:manageiq:jansa-1:alpha1:*:*:*:*:*:*
cpe:2.3:a:manageiq:manageiq:jansa-1:beta1:*:*:*:*:*:*
cpe:2.3:a:manageiq:manageiq:jansa-1:rc1:*:*:*:*:*:*
cpe:2.3:a:manageiq:manageiq:jansa-1:rc2:*:*:*:*:*:*
cpe:2.3:a:manageiq:manageiq:jansa-2:*:*:*:*:*:*:*
cpe:2.3:a:manageiq:manageiq:jansa-3:*:*:*:*:*:*:*
cpe:2.3:a:manageiq:manageiq:kasparov-1:-:*:*:*:*:*:*
cpe:2.3:a:manageiq:manageiq:kasparov-1:alpha1:*:*:*:*:*:*
cpe:2.3:a:manageiq:manageiq:kasparov-1:beta1:*:*:*:*:*:*
cpe:2.3:a:manageiq:manageiq:kasparov-1:beta1.1:*:*:*:*:*:*
cpe:2.3:a:manageiq:manageiq:lasker-1:beta1:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools