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.
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Affected Vendors & Products
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References
History
Tue, 18 Nov 2025 19:15:00 +0000
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ssvc
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Tue, 18 Nov 2025 16:45:00 +0000
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| Description | 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. | |
| Title | GoSign Desktop < 2.4.1 Insecure Update Mechanism RCE | |
| Weaknesses | CWE-347 | |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2025-11-18T18:24:11.777Z
Reserved: 2025-04-15T19:15:22.585Z
Link: CVE-2025-34324
Updated: 2025-11-18T18:24:01.521Z
Status : Received
Published: 2025-11-18T17:16:00.923
Modified: 2025-11-18T19:15:46.203
Link: CVE-2025-34324
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OpenCVE Enrichment
No data.