{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-8699", "assignerOrgId": "551230f0-3615-47bd-b7cc-93e92e730bbf", "state": "PUBLISHED", "assignerShortName": "SEC-VLab", "dateReserved": "2025-08-07T11:34:02.115Z", "datePublished": "2025-09-12T11:19:44.345Z", "dateUpdated": "2025-09-12T11:19:44.345Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unknown", "product": "Stored Value Unattended Payment Solution", "vendor": "KioSoft", "versions": [{"status": "affected", "version": "Current firmware/hardware as of Q2/2025"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Steffen Robertz, SEC Consult Vulnerability Lab"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Some \"Stored Value\" Unattended Payment Solutions of KioSoft use vulnerable NFC cards. Attackers could potentially use this vulnerability to change the balance on the cards and generate money. The account balance is stored on an insecure MiFare Classic NFC card and can be read and written back.&nbsp;By carefully observing changes in card dumps, one can identify fields that store the cash value of the card. Additionally, a checksum can be identified, which is created by XOR-ing the cash and an unknown field with a certain value. By updating the fields accordingly, arbitrary amounts of money can be loaded onto the card (up to $655,35) to pay for goods.<br></p>"}], "value": "Some \"Stored Value\" Unattended Payment Solutions of KioSoft use vulnerable NFC cards. Attackers could potentially use this vulnerability to change the balance on the cards and generate money. The account balance is stored on an insecure MiFare Classic NFC card and can be read and written back.\u00a0By carefully observing changes in card dumps, one can identify fields that store the cash value of the card. Additionally, a checksum can be identified, which is created by XOR-ing the cash and an unknown field with a certain value. By updating the fields accordingly, arbitrary amounts of money can be loaded onto the card (up to $655,35) to pay for goods."}], "impacts": [{"capecId": "CAPEC-39", "descriptions": [{"lang": "en", "value": "CAPEC-39 Manipulating Opaque Client-based Data Tokens"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-922", "description": "CWE-922 Insecure Storage of Sensitive Information", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "551230f0-3615-47bd-b7cc-93e92e730bbf", "shortName": "SEC-VLab", "dateUpdated": "2025-09-12T11:19:44.345Z"}, "references": [{"tags": ["third-party-advisory"], "url": "https://r.sec-consult.com/kiosoft"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "The vendor did not provide any information about patch versions nor specific information about affected products. Contact the supplier for details about updated firmware and stored value hardware solutions which address this issue.<br>"}], "value": "The vendor did not provide any information about patch versions nor specific information about affected products. Contact the supplier for details about updated firmware and stored value hardware solutions which address this issue."}], "source": {"discovery": "EXTERNAL"}, "x_generator": {"engine": "Vulnogram 0.2.0"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Some \"Stored Value\" Unattended Payment Solutions of KioSoft use vulnerable NFC cards. Attackers could potentially use this vulnerability to change the balance on the cards and generate money. The account balance is stored on an insecure MiFare Classic NFC card and can be read and written back.\u00a0By carefully observing changes in card dumps, one can identify fields that store the cash value of the card. Additionally, a checksum can be identified, which is created by XOR-ing the cash and an unknown field with a certain value. By updating the fields accordingly, arbitrary amounts of money can be loaded onto the card (up to $655,35) to pay for goods."}], "id": "CVE-2025-8699", "lastModified": "2025-09-12T12:15:32.223", "metrics": {}, "published": "2025-09-12T12:15:32.223", "references": [{"source": "551230f0-3615-47bd-b7cc-93e92e730bbf", "url": "https://r.sec-consult.com/kiosoft"}], "sourceIdentifier": "551230f0-3615-47bd-b7cc-93e92e730bbf", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-922"}], "source": "551230f0-3615-47bd-b7cc-93e92e730bbf", "type": "Secondary"}]}

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