tgstation-server up to 6.12.2 improper authorization

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in tgstation-server up to 6.12.2. Affected is an unknown function. Executing a manipulation can lead to improper authorization. This vulnerability appears as CVE-2025-21611. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in tgstation-server up to 6.12.2. This vulnerability affects some unknown functionality. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

tgstation-server is a production scale tool for BYOND server management. Prior to 6.12.3, roles used to authorize API methods were incorrectly OR'd instead of AND'ed with the role used to determine if a user was enabled. This allows enabled users access to most, but not all, authorized actions regardless of their permissions. Notably, the WriteUsers right is unaffected so users may not use this bug to permanently elevate their account permissions. The fix is release in tgstation-server-v6.12.3.

The advisory is available at github.com. This vulnerability was named CVE-2025-21611 since 12/29/2024. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

Upgrading to version 6.12.3 eliminates this vulnerability. Applying the patch e7b1189620baaf03c2d23f6e164d07c7c7d87d57 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

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.8
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: Improper authorization
CWE: CWE-285 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
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: tgstation-server 6.12.3
Patch: e7b1189620baaf03c2d23f6e164d07c7c7d87d57

Timelineinfo

12/29/2024 🔍
01/06/2025 +8 days 🔍
01/06/2025 +0 days 🔍
08/19/2025 +225 days 🔍

Sourcesinfo

Advisory: 2064
Status: Confirmed

CVE: CVE-2025-21611 (🔍)
GCVE (CVE): GCVE-0-2025-21611
GCVE (VulDB): GCVE-100-290278

Entryinfo

Created: 01/06/2025 17:43
Updated: 08/19/2025 15:41
Changes: 01/06/2025 17:43 (65), 08/19/2025 15:41 (1)
Complete: 🔍
Cache ID: 216::103

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