himmelblau up to 0.9.21/1.1.0 Kerberos Credential Cache insufficiently protected credentials

Summaryinfo

A vulnerability labeled as problematic has been found in himmelblau up to 0.9.21/1.1.0. This affects an unknown part of the component Kerberos Credential Cache. Such manipulation leads to insufficiently protected credentials. This vulnerability is uniquely identified as CVE-2025-54882. Local access is required to approach this attack. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in himmelblau up to 0.9.21/1.1.0. It has been rated as problematic. Affected by this issue is an unknown part of the component Kerberos Credential Cache. The manipulation with an unknown input leads to a insufficiently protected credentials vulnerability. Using CWE to declare the problem leads to CWE-522. The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. Impacted is confidentiality. CVE summarizes:

Himmelblau is an interoperability suite for Microsoft Azure Entra ID and Intune. In versions 0.8.0 through 0.9.21 and 1.0.0-beta through 1.1.0, Himmelblau stores the cloud TGT received during logon in the Kerberos credential cache. The created credential cache collection and received credentials are stored as world readable. This is fixed in versions 0.9.22 and 1.2.0. To work around this issue, remove all read access to Himmelblau caches for all users except for owners.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-54882 since 07/31/2025. The exploitation is known to be easy. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1552.

The vulnerability scanner Nessus provides a plugin with the ID 304855 (openSUSE 16 : Feature update for himmelblau (SUSE-SU-openSUSE-FU-2026:20453-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.9.22 or 1.2.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch b562053df3dffb1dd9ab3d09af986886773be2ad 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 (304855). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• himmelblau

Version

• 0.9.0
• 0.9.1
• 0.9.2
• 0.9.3
• 0.9.4
• 0.9.5
• 0.9.6
• 0.9.7
• 0.9.8
• 0.9.9
• 0.9.10
• 0.9.11
• 0.9.12
• 0.9.13
• 0.9.14
• 0.9.15
• 0.9.16
• 0.9.17
• 0.9.18
• 0.9.19
• 0.9.20
• 0.9.21
• 1.0
• 1.1.0

License

• open-source

CPE 2.3info

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CPE 2.2info

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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