github - ghsa-f369-pp94-cgwp

GHSA-F369-PP94-CGWP

Vulnerability from github – Published: 2025-06-26 18:31 – Updated: 2025-11-20 21:30

Details

A path traversal vulnerability exists in the Leadsec SSL VPN (formerly Lenovo NetGuard), allowing unauthenticated attackers to read arbitrary files on the underlying system via the ostype parameter in the /vpn/user/download/client endpoint. This flaw arises from insufficient input sanitation, enabling traversal sequences to escape the intended directory and access sensitive files.

Severity ?

8.7 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-34047"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-26T16:15:28Z",
    "severity": "HIGH"
  },
  "details": "A path traversal vulnerability exists in the Leadsec SSL VPN (formerly Lenovo NetGuard), allowing unauthenticated attackers to read arbitrary files on the underlying system via the ostype parameter in the /vpn/user/download/client endpoint. This flaw arises from insufficient input sanitation, enabling traversal sequences\u00a0to escape the intended directory and access sensitive files.",
  "id": "GHSA-f369-pp94-cgwp",
  "modified": "2025-11-20T21:30:29Z",
  "published": "2025-06-26T18:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-34047"
    },
    {
      "type": "WEB",
      "url": "https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cnvd/2021/CNVD-2021-64035.yaml"
    },
    {
      "type": "WEB",
      "url": "https://vulncheck.com/advisories/leadsec-vpn-path-traversal-file-read"
    },
    {
      "type": "WEB",
      "url": "https://www.cnvd.org.cn/flaw/show/CNVD-2021-64035"
    },
    {
      "type": "WEB",
      "url": "https://www.leadsec.com.cn"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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-2025-34047 (GCVE-0-2025-34047)

Vulnerability from cvelistv5 – Published: 2025-06-26 16:10 – Updated: 2025-12-23 16:49 X_Known Exploited Vulnerability

Title

Leadsec VPN Path Traversal Arbitrary File Read

Summary

Severity ?

8.7 (High)


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

CWE

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-20 - Improper Input Validation

Assigner

VulnCheck

References

URL

Tags

	https://www.cnvd.org.cn/flaw/show/CNVD-2021-64035	third-party-advisory
	https://github.com/projectdiscovery/nuclei-templa…	exploit
	https://www.leadsec.com.cn/	product
	https://vulncheck.com/advisories/leadsec-vpn-path…	third-party-advisory

Impacted products

	Vendor	Product	Version
	Beijing NetGuard Nebula Information Technology Co., Ltd.	Leadsec SSL VPN	Affected: 0

Show details on NVD website

JSON

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          {
            "other": {
              "content": {
                "id": "CVE-2025-34047",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-12-23T16:48:39.113728Z",
                "version": "2.0.3"
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        {
          "defaultStatus": "unaffected",
          "modules": [
            "Web Management Interface (/vpn/user/download/client CGI endpoint)",
            "ostype (used in client download URL)"
          ],
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          "vendor": "Beijing NetGuard Nebula Information Technology Co., Ltd.",
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    "datePublished": "2025-06-26T16:10:37.548Z",
    "dateReserved": "2025-04-15T19:15:22.547Z",
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  },
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}

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-F369-PP94-CGWP

CVE-2025-34047 (GCVE-0-2025-34047)

Tags

Sightings

Nomenclature