github - ghsa-777r-h845-392r

GHSA-777R-H845-392R

Vulnerability from github – Published: 2025-11-18 18:32 – Updated: 2025-12-31 03:30

Details

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.

Severity ?

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

7.0 (High)


                  
                    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2025-34324"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-347"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-11-18T17:16:00Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-777r-h845-392r",
  "modified": "2025-12-31T03:30:32Z",
  "published": "2025-11-18T18:32:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-34324"
    },
    {
      "type": "WEB",
      "url": "https://infocert.digital/consumer/gosign-suite"
    },
    {
      "type": "WEB",
      "url": "https://www.ush.it/2025/11/14/multiple-vulnerabilities-gosign-desktop-remote-code-execution"
    },
    {
      "type": "WEB",
      "url": "https://www.ush.it/2025/11/14/vulnerabilita-multiple-gosign-desktop-esecuzione-remota-codice-arbitrario"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/gosign-desktop-insecure-update-mechanism-rce"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2025-34324 (GCVE-0-2025-34324)

Vulnerability from cvelistv5 – Published: 2025-11-18 16:33 – Updated: 2025-11-18 18:24

Title

GoSign Desktop < 2.4.1 Insecure Update Mechanism RCE

Summary

Severity ?

7 (High)


                        
                          CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CWE

CWE-347 - Improper Verification of Cryptographic Signature

Assigner

VulnCheck

References

URL

Tags

	https://www.ush.it/2025/11/14/multiple-vulnerabil…	technical-descriptionexploit
	https://infocert.digital/consumer/gosign-suite/	product
	https://www.vulncheck.com/advisories/gosign-deskt…	third-party-advisory
	https://www.ush.it/2025/11/14/vulnerabilita-multi…	technical-descriptionexploit

Impacted products

	Vendor	Product	Version
	Tinexta InfoCert S.p.A.	GoSign Desktop	Affected: 0 , < 2.4.1 (semver)

Credits

Pasquale "sid" Fiorillo Francesco "ascii" Ongaro Marco Lunardi

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-34324",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-11-18T18:24:08.434766Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2025-11-18T18:24:11.777Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
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            "tags": [
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            "url": "https://www.ush.it/2025/11/14/multiple-vulnerabilities-gosign-desktop-remote-code-execution/"
          },
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            "url": "https://www.ush.it/2025/11/14/vulnerabilita-multiple-gosign-desktop-esecuzione-remota-codice-arbitrario/"
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        ],
        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "GoSign Desktop",
          "vendor": "Tinexta InfoCert S.p.A.",
          "versions": [
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              "lessThan": "2.4.1",
              "status": "affected",
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      "credits": [
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          "type": "finder",
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          "type": "finder",
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        }
      ],
      "metrics": [
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackRequirements": "NONE",
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            "privilegesRequired": "LOW",
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          "lang": "en",
          "time": "2025-11-14T18:09:00.000Z",
          "value": "Researcher publicly discloses vulnerability"
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    "cveId": "CVE-2025-34324",
    "datePublished": "2025-11-18T16:33:05.469Z",
    "dateReserved": "2025-04-15T19:15:22.585Z",
    "dateUpdated": "2025-11-18T18:24:11.777Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-777R-H845-392R

CVE-2025-34324 (GCVE-0-2025-34324)

Tags

Sightings

Nomenclature