Vulnerability Details : CVE-2021-32756
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.
Vulnerability category: Execute code
Products affected by CVE-2021-32756
- 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:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-32756
0.40%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 57 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-32756
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
9.0
|
HIGH | AV:N/AC:L/Au:S/C:C/I:C/A:C |
8.0
|
10.0
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
GitHub, Inc. |
CWE ids for CVE-2021-32756
-
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.Assigned by: security-advisories@github.com (Secondary)
-
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-32756
-
https://github.com/ManageIQ/manageiq/security/advisories/GHSA-32x4-vj4r-57rq
Arbitrary eval through MiqExpression · Advisory · ManageIQ/manageiq · GitHubThird Party Advisory
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