Tinexta InfoCert GoSign Desktop up to 2.4.0 on Windows signature verification

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Tinexta InfoCert GoSign Desktop up to 2.4.0 on Windows. It has been rated as critical. This affects an unknown function. This manipulation causes signature verification. This vulnerability is tracked as CVE-2025-34324. The attack is restricted to local execution. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Tinexta InfoCert GoSign Desktop up to 2.4.0 on Windows. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a signature verification vulnerability. The CWE definition for the vulnerability is CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

GoSign Desktop versions 2.4.0 and earlier use an unsigned update manifest for distributing application updates. The manifest contains package URLs and SHA-256 hashes but is not digitally signed, so its authenticity relies solely on the underlying TLS channel. In affected versions, TLS certificate validation can be disabled when a proxy is configured, allowing an attacker who can intercept network traffic to supply a malicious update manifest and corresponding package with a matching hash. This can cause the client to download and install a tampered update, resulting in arbitrary code execution with the privileges of the GoSign Desktop user on Windows and macOS, or with elevated privileges on some Linux deployments. A local attacker who can modify proxy settings may also abuse this behavior to escalate privileges by forcing installation of a crafted update.

The weakness was disclosed by Pasquale Fiorillo, Francesco Ongaro and Marco Lunardi. The advisory is shared at ush.it. This vulnerability is known as CVE-2025-34324 since 04/15/2025. The exploitation appears to be easy. An attack has to be approached locally. Neither technical details nor an exploit are publicly available.

Upgrading to version 2.4.1 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

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: GoSign Desktop 2.4.1

Timelineinfo

04/15/2025 CVE reserved
11/18/2025 +217 days Advisory disclosed
11/18/2025 +0 days VulDB entry created
12/31/2025 +43 days VulDB entry last update

Sourcesinfo

Advisory: ush.it
Researcher: Pasquale Fiorillo, Francesco Ongaro, Marco Lunardi
Status: Confirmed

CVE: CVE-2025-34324 (🔒)
GCVE (CVE): GCVE-0-2025-34324
GCVE (VulDB): GCVE-100-332857

Entryinfo

Created: 11/18/2025 20:25
Updated: 12/31/2025 04:55
Changes: 11/18/2025 20:25 (67), 12/31/2025 04:55 (10)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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