himmelblau up to 0.9.22 himmelblau.conf insecure default initialization of resource

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in himmelblau up to 0.9.22. It has been rated as problematic. This affects an unknown function of the file himmelblau.conf. Performing a manipulation results in insecure default initialization of resource. This vulnerability was named CVE-2025-59044. The attack needs to be approached locally. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in himmelblau up to 0.9.22. This affects an unknown function of the file himmelblau.conf. The manipulation with an unknown input leads to a insecure default initialization of resource vulnerability. CWE is classifying the issue as CWE-1188. The product initializes or sets a resource with a default that is intended to be changed by the administrator, but the default is not secure. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. Himmelblau 0.9.x derives numeric GIDs for Entra ID groups from the group display name when himmelblau.conf `id_attr_map = name` (the default configuration). Because Microsoft Entra ID allows multiple groups with the same `displayName` (including end-user–created personal/O365 groups, depending on tenant policy), distinct directory groups can collapse to the same numeric GID on Linux. This issue only applies to Himmelblau versions 0.9.0 through 0.9.22. Any resource or service on a Himmelblau-joined host that enforces authorization by numeric GID (files/dirs, etc.) can be unintentionally accessible to a user who creates or joins a different Entra/O365 group that happens to share the same `displayName` as a privileged security group. Users should upgrade to 0.9.23, or 1.0.0 or later, to receive a patch. Group to GID mapping now uses Entra ID object IDs (GUIDs) and does not collide on same-name groups. As a workaround, use tenant policy hardening to restrict arbitrary group creation until all hosts are patched.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-59044 since 09/08/2025. The exploitability is told to be easy. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 277009 (openSUSE 16 Security Update : himmelblau (openSUSE-SU-2025-20114-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.9.23 eliminates this vulnerability. Applying the patch 76c5b41df7f89378af65dc7c0d0484d7d41b3281 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.

The vulnerability is also documented in the vulnerability database at Tenable (277009). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

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

CNA Base Score: 4.4
CNA Vector (GitHub_M): 🔒

CVSSv2info

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

Exploitinginfo

Class: Insecure default initialization of resource
CWE: CWE-1188
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 277009
Nessus Name: openSUSE 16 Security Update : himmelblau (openSUSE-SU-2025-20114-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: himmelblau 0.9.23
Patch: 76c5b41df7f89378af65dc7c0d0484d7d41b3281

Timelineinfo

09/08/2025 CVE reserved
09/10/2025 +2 days Advisory disclosed
09/10/2025 +0 days VulDB entry created
12/03/2025 +84 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-2m43-mmg9-3rgc
Status: Confirmed

CVE: CVE-2025-59044 (🔒)
GCVE (CVE): GCVE-0-2025-59044
GCVE (VulDB): GCVE-100-323463

Entryinfo

Created: 09/10/2025 08:16
Updated: 12/03/2025 11:11
Changes: 09/10/2025 08:16 (65), 12/03/2025 11:11 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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