xCAT up to 2.16.4 Zone authorization

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in xCAT up to 2.16.4. Impacted is an unknown function of the component Zone Handler. The manipulation leads to authorization. This vulnerability is listed as CVE-2023-27486. The attack must be carried out locally. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in xCAT up to 2.16.4. It has been rated as problematic. This issue affects some unknown functionality of the component Zone Handler. The manipulation with an unknown input leads to a authorization vulnerability. Using CWE to declare the problem leads to CWE-863. The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

xCAT is a toolkit for deployment and administration of computer clusters. In versions prior to 2.16.5 if zones are configured as a mechanism to secure clusters in XCAT, it is possible for a local root user from one node to obtain credentials to SSH to any node in any zone, except the management node of the default zone. XCAT zones are not enabled by default. Only users that use the optional zone feature are impacted. All versions of xCAT prior to xCAT 2.16.5 are vulnerable. This problem has been fixed in xCAT 2.16.5. Users making use of zones should upgrade to 2.16.5. Users unable to upgrade may mitigate the issue by disabling zones or patching the management node with the fix contained in commit `85149c37f49`.

The weakness was presented 03/09/2023 as 7246. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2023-27486 since 03/01/2023. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 2.16.5 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CNA Base Score: 8.1
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-863 / CWE-285 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: xCAT 2.16.5
Patch: github.com

Timelineinfo

03/01/2023 🔍
03/09/2023 +8 days 🔍
03/09/2023 +0 days 🔍
04/02/2023 +24 days 🔍

Sourcesinfo

Advisory: 7246
Status: Confirmed

CVE: CVE-2023-27486 (🔍)
GCVE (CVE): GCVE-0-2023-27486
GCVE (VulDB): GCVE-100-222623

Entryinfo

Created: 03/09/2023 06:48
Updated: 04/02/2023 07:18
Changes: 03/09/2023 06:48 (50), 04/02/2023 07:18 (11)
Complete: 🔍
Cache ID: 216::103

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