Vulnerability-Lookup

GHSA-RQPW-QJW3-J3G6

Vulnerability from github – Published: 2025-08-13 12:31 – Updated: 2025-08-13 12:31

Details

Successful exploitation of this vulnerability could allow the attacker to perform unauthorized decryption of sensitive data and Man-in-the-Middle (MitM) attacks on the targeted device.

Severity

6.9 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-55279"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-798"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-08-13T12:15:26Z",
    "severity": "MODERATE"
  },
  "details": "This vulnerability exists in ZKTeco WL20 due to hard-coded private key stored in plaintext within the device firmware. An attacker with physical access could exploit this vulnerability by extracting the firmware and analyzing the binary data to retrieve private key stored in the firmware of the targeted device.\n\nSuccessful exploitation of this vulnerability could allow the attacker to perform unauthorized decryption of sensitive data and Man-in-the-Middle (MitM) attacks on the targeted device.",
  "id": "GHSA-rqpw-qjw3-j3g6",
  "modified": "2025-08-13T12:31:30Z",
  "published": "2025-08-13T12:31:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55279"
    },
    {
      "type": "WEB",
      "url": "https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01\u0026VLCODE=CIVN-2025-0172"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/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-2025-55279 (GCVE-0-2025-55279)

Vulnerability from cvelistv5 – Published: 2025-08-13 11:23 – Updated: 2025-08-13 13:01

Title

Hard-coded Private Key Vulnerability in ZKTeco WL20

Summary

This vulnerability exists in ZKTeco WL20 due to hard-coded private key stored in plaintext within the device firmware. An attacker with physical access could exploit this vulnerability by extracting the firmware and analyzing the binary data to retrieve private key stored in the firmware of the targeted device. Successful exploitation of this vulnerability could allow the attacker to perform unauthorized decryption of sensitive data and Man-in-the-Middle (MitM) attacks on the targeted device.

Severity

6.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-08-13 13:01 UTC

CWE

CWE-798 - Use of Hard-coded Credentials

Assigner

CERT-In CNA under the mitre root

CNA scorecard B 89/100 over 22 records in the last 180 days details

References

1 reference

URL	Tags
https://www.cert-in.org.in/s2cMainServlet?pageid=…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
ZKTeco Co	WL20 Biometric Attendance System	Affected: <=ZLM31-FXO1-3.1.8

Credits

This vulnerability is reported by Shravan Singh from Kavach IoT Security.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-55279",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-08-13T13:01:24.135723Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-08-13T13:01:28.876Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WL20 Biometric Attendance System",
          "vendor": "ZKTeco Co",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c=ZLM31-FXO1-3.1.8"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "This vulnerability is reported by Shravan Singh from Kavach IoT Security."
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "This vulnerability exists in ZKTeco WL20 due to hard-coded private key stored in plaintext within the device firmware. An attacker with physical access could exploit this vulnerability by extracting the firmware and analyzing the binary data to retrieve private key stored in the firmware of the targeted device.\u003cbr\u003e\u003cbr\u003eSuccessful exploitation of this vulnerability could allow the attacker to perform unauthorized decryption of sensitive data and Man-in-the-Middle (MitM) attacks on the targeted device.\u003cbr\u003e"
            }
          ],
          "value": "This vulnerability exists in ZKTeco WL20 due to hard-coded private key stored in plaintext within the device firmware. An attacker with physical access could exploit this vulnerability by extracting the firmware and analyzing the binary data to retrieve private key stored in the firmware of the targeted device.\n\nSuccessful exploitation of this vulnerability could allow the attacker to perform unauthorized decryption of sensitive data and Man-in-the-Middle (MitM) attacks on the targeted device."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "PHYSICAL",
            "baseScore": 6.9,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-798",
              "description": "CWE-798: Use of Hard-coded Credentials",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-08-13T11:23:53.500Z",
        "orgId": "66834db9-ab24-42b4-be80-296b2e40335c",
        "shortName": "CERT-In"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.cert-in.org.in/s2cMainServlet?pageid=PUBVLNOTES01\u0026VLCODE=CIVN-2025-0172"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Hard-coded Private Key Vulnerability in ZKTeco WL20",
      "workarounds": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cul\u003e\u003cli\u003eApply mitigations as per vendor instructions (whenever available) or discontinue the use of the product if mitigations are unavailable. \u003c/li\u003e\u003cli\u003ePerform risk assessment and implement physical security controls to prevent unauthorized access to the device.\u003c/li\u003e\u003c/ul\u003e"
            }
          ],
          "value": "*  Apply mitigations as per vendor instructions (whenever available) or discontinue the use of the product if mitigations are unavailable. \n  *  Perform risk assessment and implement physical security controls to prevent unauthorized access to the device."
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "66834db9-ab24-42b4-be80-296b2e40335c",
    "assignerShortName": "CERT-In",
    "cveId": "CVE-2025-55279",
    "datePublished": "2025-08-13T11:23:53.500Z",
    "dateReserved": "2025-08-12T11:08:57.777Z",
    "dateUpdated": "2025-08-13T13:01:28.876Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

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.

Action not permitted