Vulnerability-Lookup

CNVD-2025-31103

Vulnerability from cnvd - Published: 2025-12-22

Title

Advantech WebAccess/VPN绝对路径遍历漏洞

Description

Advantech WebAccess/VPN是一种集成在研华（Advantech）WebAccess/SCADA软件中的虚拟专用网络功能，旨在为工业自动化和远程监控系统提供安全、可靠的网络连接解决方案。 Advantech WebAccess/VPN存在绝对路径遍历漏洞，该漏洞源于AjaxStandaloneVpnClientsController.ajaxDownloadRoadWarriorConfigFileAction未能正确地过滤资源或文件路径中的特殊元素，攻击者可利用该漏洞导致读取任意文件。

Severity

中

Patch Name

Advantech WebAccess/VPN绝对路径遍历漏洞的补丁

Patch Description

Formal description

目前厂商已发布升级程序修复该安全问题，详情见厂商官网: https://icr.advantech.com/download/software

Reference

https://nvd.nist.gov/vuln/detail/CVE-2025-34238

Impacted products

Name
Advantech WebAccess/VPN <1.1.5

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2025-34238",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-34238"
    }
  },
  "description": "Advantech WebAccess/VPN\u662f\u4e00\u79cd\u96c6\u6210\u5728\u7814\u534e\uff08Advantech\uff09WebAccess/SCADA\u8f6f\u4ef6\u4e2d\u7684\u865a\u62df\u4e13\u7528\u7f51\u7edc\u529f\u80fd\uff0c\u65e8\u5728\u4e3a\u5de5\u4e1a\u81ea\u52a8\u5316\u548c\u8fdc\u7a0b\u76d1\u63a7\u7cfb\u7edf\u63d0\u4f9b\u5b89\u5168\u3001\u53ef\u9760\u7684\u7f51\u7edc\u8fde\u63a5\u89e3\u51b3\u65b9\u6848\u3002\n\nAdvantech WebAccess/VPN\u5b58\u5728\u7edd\u5bf9\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eAjaxStandaloneVpnClientsController.ajaxDownloadRoadWarriorConfigFileAction\u672a\u80fd\u6b63\u786e\u5730\u8fc7\u6ee4\u8d44\u6e90\u6216\u6587\u4ef6\u8def\u5f84\u4e2d\u7684\u7279\u6b8a\u5143\u7d20\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8bfb\u53d6\u4efb\u610f\u6587\u4ef6\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u7a0b\u5e8f\u4fee\u590d\u8be5\u5b89\u5168\u95ee\u9898\uff0c\u8be6\u60c5\u89c1\u5382\u5546\u5b98\u7f51:\r\nhttps://icr.advantech.com/download/software",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-31103",
  "openTime": "2025-12-22",
  "patchDescription": "Advantech WebAccess/VPN\u662f\u4e00\u79cd\u96c6\u6210\u5728\u7814\u534e\uff08Advantech\uff09WebAccess/SCADA\u8f6f\u4ef6\u4e2d\u7684\u865a\u62df\u4e13\u7528\u7f51\u7edc\u529f\u80fd\uff0c\u65e8\u5728\u4e3a\u5de5\u4e1a\u81ea\u52a8\u5316\u548c\u8fdc\u7a0b\u76d1\u63a7\u7cfb\u7edf\u63d0\u4f9b\u5b89\u5168\u3001\u53ef\u9760\u7684\u7f51\u7edc\u8fde\u63a5\u89e3\u51b3\u65b9\u6848\u3002\r\n\r\nAdvantech WebAccess/VPN\u5b58\u5728\u7edd\u5bf9\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eAjaxStandaloneVpnClientsController.ajaxDownloadRoadWarriorConfigFileAction\u672a\u80fd\u6b63\u786e\u5730\u8fc7\u6ee4\u8d44\u6e90\u6216\u6587\u4ef6\u8def\u5f84\u4e2d\u7684\u7279\u6b8a\u5143\u7d20\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8bfb\u53d6\u4efb\u610f\u6587\u4ef6\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Advantech WebAccess/VPN\u7edd\u5bf9\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Advantech WebAccess/VPN \u003c1.1.5"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2025-34238",
  "serverity": "\u4e2d",
  "submitTime": "2025-11-11",
  "title": "Advantech WebAccess/VPN\u7edd\u5bf9\u8def\u5f84\u904d\u5386\u6f0f\u6d1e"
}

CVE-2025-34238 (GCVE-0-2025-34238)

Vulnerability from cvelistv5 – Published: 2025-11-06 19:43 – Updated: 2025-11-17 19:38

Title

Advantech WebAccess/VPN < 1.1.5 Path Traversal via AjaxStandaloneVpnClientsController.ajaxDownloadRoadWarriorConfigFileAction()

Summary

Advantech WebAccess/VPN versions prior to 1.1.5 contain an absolute path traversal via AjaxStandaloneVpnClientsController.ajaxDownloadRoadWarriorConfigFileAction() that allows an authenticated network administrator to cause the application to read and return the contents of arbitrary files the web user (www-data) can access.

Severity

6.9 (Medium)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-11-06 20:23 UTC

CWE

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

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://icr.advantech.com/support/router-models/d…	vendor-advisorypatch
https://www.vulncheck.com/advisories/advantech-we…	third-party-advisory
https://icr.advantech.com/download/software	product

Impacted products

1 product

Vendor	Product	Version
Advantech	WebAccess/VPN	Affected: 0 , < 1.1.5 (semver) cpe:2.3:a:advantech:webaccess\/vpn::::::::

Credits

Alex Williams from Pellera Technologies

Show details on NVD website

JSON

To clipboard

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                "id": "CVE-2025-34238",
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                  },
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                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-11-06T20:23:54.482706Z",
                "version": "2.0.3"
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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      }
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    "cna": {
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          "defaultStatus": "unaffected",
          "modules": [
            "AjaxStandaloneVpnClientsController.ajaxDownloadRoadWarriorConfigFileAction()"
          ],
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          "vendor": "Advantech",
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      "metrics": [
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            "exploitMaturity": "NOT_DEFINED",
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Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.