CGM CLININET up to 2025.MS1 decodeParam ex:action backdoor

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in CGM CLININET up to 2025.MS1. This affects the function decodeParam. This manipulation of the argument ex:action causes backdoor. This vulnerability is registered as CVE-2025-30064. The attack needs to be launched locally. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in CGM CLININET up to 2025.MS1 and classified as critical. Affected by this vulnerability is the function decodeParam. The manipulation of the argument ex:action with an unknown input leads to a backdoor vulnerability. The CWE definition for the vulnerability is CWE-912. The product contains functionality that is not documented, not part of the specification, and not accessible through an interface or command sequence that is obvious to the product's users or administrators. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An insufficiently secured internal function allows session generation for arbitrary users. The decodeParam function checks the JWT but does not verify which signing algorithm was used. As a result, an attacker can use the "ex:action" parameter in the VerifyUserByThrustedService function to generate a session for any user.

The weakness was published by Maciej Kazulak. The advisory is shared at cert.pl. This vulnerability is known as CVE-2025-30064 since 03/14/2025. The exploitation appears to be difficult. An attack has to be approached locally. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1588.001 for this issue.

Upgrading to version 2025.MS2 eliminates this vulnerability.

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Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.0
VulDB Temp Score: 6.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Backdoor
CWE: CWE-912
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: CLININET 2025.MS2

Timelineinfo

03/14/2025 CVE reserved
08/27/2025 +165 days Advisory disclosed
08/27/2025 +0 days VulDB entry created
08/27/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: cert.pl
Researcher: Maciej Kazulak
Status: Confirmed

CVE: CVE-2025-30064 (🔒)
GCVE (CVE): GCVE-0-2025-30064
GCVE (VulDB): GCVE-100-321565

Entryinfo

Created: 08/27/2025 12:49
Updated: 08/27/2025 15:44
Changes: 08/27/2025 12:49 (69), 08/27/2025 15:44 (1)
Complete: 🔍
Cache ID: 216::103

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