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Cisco IOx - Application Environment User Impersonation Vulnerability (CVE-2022-20724)

Moderate
orange-cert-cc published GHSA-xr7h-wjgg-h3rp Apr 19, 2022

Package

IOx (Cisco)

Affected versions

17.3.3

Patched versions

17.3(5)

Description

Overview

A vulnerability in the Cisco IOx application hosting environment of multiple Cisco platforms could allow an authenticated, remote attacker to read arbitrary files from the underlying host filesystem.

Impact

An attacker could exploit this vulnerability by sending a crafted command request using the API. A successful exploit could allow the attacker to read the contents of any file that is located on the host device filesystem.

Details

This vulnerability is due to insufficient path validation of command arguments within the Cisco IOx API.

Solution

Security patch

Upgrade to patched version (see above).

Workaround

There are no workarounds that address this vulnerability.

References

https://nvd.nist.gov/vuln/detail/CVE-2022-20724
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iox-yuXQ6hFj

Credits

Orange CERT-CC
Cyrille CHATRAS at Orange group

Timeline

Date reported: June 06, 2021
Date fixed: April 13, 2022

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

CVE ID

CVE-2022-20724

Weaknesses

No CWEs