github - ghsa-8xf9-xq28-hpj9

GHSA-8XF9-XQ28-HPJ9

Vulnerability from github – Published: 2025-10-21 12:31 – Updated: 2025-11-03 18:31

Details

The WorkExaminer Professional console is used for administrative access to the server. Before access to the console is granted administrators must login. Internally, a custom protocol is used to call a respective stored procedure on the MSSQL database. The return value of the call is not validated on the server-side. Instead it is only validated client-side which allows to bypass authentication.

Severity ?

9.8 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2025-10640"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-602"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-21T12:15:35Z",
    "severity": "CRITICAL"
  },
  "details": "An unauthenticated attacker with access to TCP port 12306 of the WorkExaminer server can exploit missing server-side authentication checks to bypass the login prompt in the WorkExaminer Professional console to gain administrative access to the WorkExaminer server and therefore all sensitive monitoring data. This includes monitored screenshots and keystrokes of all users.\n\nThe WorkExaminer Professional console is used for administrative access to the server. Before access to the console is granted administrators must login. Internally, a custom protocol is used to call a respective stored procedure on the MSSQL database. The return value of the call is not validated on the server-side. Instead it is only validated client-side which allows to bypass authentication.",
  "id": "GHSA-8xf9-xq28-hpj9",
  "modified": "2025-11-03T18:31:46Z",
  "published": "2025-10-21T12:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-10640"
    },
    {
      "type": "WEB",
      "url": "https://r.sec-consult.com/workexaminer"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2025/Oct/19"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-10640 (GCVE-0-2025-10640)

Vulnerability from cvelistv5 – Published: 2025-10-21 11:43 – Updated: 2025-11-03 17:31

Summary

An unauthenticated attacker with access to TCP port 12306 of the WorkExaminer server can exploit missing server-side authentication checks to bypass the login prompt in the WorkExaminer Professional console to gain administrative access to the WorkExaminer server and therefore all sensitive monitoring data. This includes monitored screenshots and keystrokes of all users. The WorkExaminer Professional console is used for administrative access to the server. Before access to the console is granted administrators must login. Internally, a custom protocol is used to call a respective stored procedure on the MSSQL database. The return value of the call is not validated on the server-side. Instead it is only validated client-side which allows to bypass authentication.

Severity ?

9.8 (Critical)


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

CWE

CWE-602 - Client-Side Enforcement of Server-Side Security

Assigner

SEC-VLab

References

URL

Tags

https://r.sec-consult.com/workexaminer

third-party-advisory

Impacted products

	Vendor	Product	Version
	EfficientLab	WorkExaminer Professional	Affected: <= 4.0.0.52001

Credits

Tobias Niemann, SEC Consult Vulnerability Lab Daniel Hirschberger, SEC Consult Vulnerability Lab Thorger Jansen, SEC Consult Vulnerability Lab Marius Renner, SEC Consult Vulnerability Lab

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2025-10640",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-22T18:59:26.555996Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-22T18:59:33.134Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T17:31:35.365Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "http://seclists.org/fulldisclosure/2025/Oct/19"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "WorkExaminer Professional",
          "vendor": "EfficientLab",
          "versions": [
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              "status": "affected",
              "version": "\u003c= 4.0.0.52001"
            }
          ]
        }
      ],
      "credits": [
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          "lang": "en",
          "type": "finder",
          "value": "Tobias Niemann, SEC Consult Vulnerability Lab"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Daniel Hirschberger, SEC Consult Vulnerability Lab"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Thorger Jansen, SEC Consult Vulnerability Lab"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Marius Renner, SEC Consult Vulnerability Lab"
        }
      ],
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              "value": "\u003cp\u003eAn unauthenticated attacker with access to TCP port 12306 of the WorkExaminer server can exploit missing server-side authentication checks to bypass the login prompt in the WorkExaminer Professional console to gain administrative access to the WorkExaminer server and therefore all sensitive monitoring data. This includes monitored screenshots and keystrokes of all users.\u003c/p\u003e\u003cp\u003eThe WorkExaminer Professional console is used for administrative access to the server. Before access to the console is granted administrators must login. Internally, a custom protocol is used to call a respective stored procedure on the MSSQL database. The return value of the call is not validated on the server-side. Instead it is only validated client-side which allows to bypass authentication.\u003c/p\u003e"
            }
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          "value": "An unauthenticated attacker with access to TCP port 12306 of the WorkExaminer server can exploit missing server-side authentication checks to bypass the login prompt in the WorkExaminer Professional console to gain administrative access to the WorkExaminer server and therefore all sensitive monitoring data. This includes monitored screenshots and keystrokes of all users.\n\nThe WorkExaminer Professional console is used for administrative access to the server. Before access to the console is granted administrators must login. Internally, a custom protocol is used to call a respective stored procedure on the MSSQL database. The return value of the call is not validated on the server-side. Instead it is only validated client-side which allows to bypass authentication."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-115",
          "descriptions": [
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              "lang": "en",
              "value": "CAPEC-115 Authentication Bypass"
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        {
          "descriptions": [
            {
              "cweId": "CWE-602",
              "description": "CWE-602 Client-Side Enforcement of Server-Side Security",
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              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-21T11:43:44.598Z",
        "orgId": "551230f0-3615-47bd-b7cc-93e92e730bbf",
        "shortName": "SEC-VLab"
      },
      "references": [
        {
          "tags": [
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          "url": "https://r.sec-consult.com/workexaminer"
        }
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            }
          ],
          "value": "The vendor responded to the submission of our security vulnerabilities by stating that they are not within the scope of their bug bounty program. After telling them that we do not care about the bug bounty but a fix for the issues, we did not receive any further response.\n\nHence, there is no fix available for the identified security issues and we assume that this product is unmaintained. We urge customers to contact EfficientLab regarding the issues and a potential solution, such as using another product."
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Missing Server-Side Authentication Checks in EfficientLab WorkExaminer Professional",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "551230f0-3615-47bd-b7cc-93e92e730bbf",
    "assignerShortName": "SEC-VLab",
    "cveId": "CVE-2025-10640",
    "datePublished": "2025-10-21T11:43:44.598Z",
    "dateReserved": "2025-09-17T14:05:16.432Z",
    "dateUpdated": "2025-11-03T17:31:35.365Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "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-8XF9-XQ28-HPJ9

CVE-2025-10640 (GCVE-0-2025-10640)

Tags

Sightings

Nomenclature