{ "document": { "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "nl", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:\n\n NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.\n\n NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.\n This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." }, { "category": "description", "text": "Ahsay heeft kwetsbaarheden verholpen in AhsayCBS tot en met versie 10.3.2.", "title": "Feiten" }, { "category": "description", "text": "De kwetsbaarheid met kenmerk CVE-2026-105133 heeft een CVSS-score van 7,3 en betreft onvoldoende authenticatie in de functie checkSysPwd van de AhsayCBS API. Een niet-geauthenticeerde kwaadwillende kan de kwetsbaarheid op afstand misbruiken om de authenticatie te omzeilen.\n\nDe kwetsbaarheid met kenmerk CVE-2026-105134 heeft een CVSS-score van 10,0 en betreft OS-command-injectie in de Replication Receiver via /rps/api/json/UpdateReceivers.do. De kwetsbaarheid kan op afstand worden misbruikt voor het uitvoeren van willekeurige OS-commando's.\n\nOnderzoekers hebben actief misbruik waargenomen waarbij beide kwetsbaarheden in één aanvalsketen worden gecombineerd. Hierbij wordt CVE-2026-105133 gebruikt om de authenticatie te omzeilen, waarna CVE-2026-105134 wordt misbruikt. Hierdoor kan een niet-geauthenticeerde kwaadwillende op afstand code uitvoeren op een kwetsbare AhsayCBS-server.\n\nHet NCSC adviseert om de beveiligingsupdates met spoed toe te passen en onderzoek te doen naar mogelijke eerdere compromittering van kwetsbare systemen. Ahsay noemt onder meer verdachte mappen en bestanden, ongeautoriseerde RPS receivers en ongeautoriseerde AhsayCBS-accounts met administratieve rechten als indicatoren. Wanneer aanwijzingen voor compromittering worden aangetroffen, adviseert Ahsay de server volledig opnieuw op te bouwen en een configuratie van vóór de compromittering te herstellen.\n\nZie bijgevoegde referenties voor meer informatie.", "title": "Interpretaties" }, { "category": "description", "text": "Ahsay heeft versie 10.3.4 van AhsayCBS uitgebracht om deze kwetsbaarheden te verhelpen. Zie bijgevoegde referenties voor meer informatie.", "title": "Oplossingen" }, { "category": "general", "text": "medium", "title": "Kans" }, { "category": "general", "text": "high", "title": "Schade" }, { "category": "general", "text": "Improper Neutralization of Special Elements used in a Command ('Command Injection')", "title": "CWE-77" }, { "category": "general", "text": "Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "title": "CWE-78" } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "Nationaal Cyber Security Centrum", "namespace": "https://www.ncsc.nl/" }, "references": [ { "category": "external", "summary": "Reference", "url": "https://www.ahsay.com/en/company/announcements/ahsaycbs-vulnerability-status-update" }, { "category": "external", "summary": "Reference", "url": "https://www.ahsay.com/en/company/announcements/patch-cve-105133-105134-update" } ], "title": "Kwetsbaarheden verholpen in Ahsay AhsayCBS", "tracking": { "current_release_date": "2026-10-14T13:19:14.402156Z", "generator": { "date": "2025-08-04T16:30:00Z", "engine": { "name": "V.A.", "version": "1.3" } }, "id": "NCSC-2026-0427", "initial_release_date": "2026-10-14T13:19:14.402156Z", "revision_history": [ { "date": "2026-10-14T13:19:14.402156Z", "number": "1.0.0", "summary": "Initiele versie" } ], "status": "final", "version": "1.0.0" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/*", "product": { "name": "vers:unknown/*", "product_id": "CSAFPID-1" } } ], "category": "product_name", "name": "AhsayCBS" } ], "category": "vendor", "name": "Ahsay" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-105134", "cwe": { "id": "CWE-77", "name": "Improper Neutralization of Special Elements used in a Command ('Command Injection')" }, "notes": [ { "category": "other", "text": "Improper Neutralization of Special Elements used in a Command ('Command Injection')", "title": "CWE-77" }, { "category": "other", "text": "Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "title": "CWE-78" }, { "category": "description", "text": "A remote OS command injection vulnerability in Ahsay AhsayCBS up to version 10.3.2 exists in the Replication Receiver component via the 'random' argument in /rps/api/json/UpdateReceivers.do, fixed in version 10.3.4.", "title": "Summary" }, { "category": "general", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/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", "title": "CVSSV4" } ], "product_status": { "known_affected": [ "CSAFPID-1" ] }, "references": [ { "category": "self", "summary": "CVE-2026-105134 | NCSC-NL Website", "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-105134.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "baseScore": 10.0, "baseSeverity": "CRITICAL" }, "products": [ "CSAFPID-1" ] } ], "title": "CVE-2026-105134" }, { "cve": "CVE-2026-105133", "notes": [ { "category": "description", "text": "A remote authentication bypass vulnerability in Ahsay AhsayCBS up to version 10.3.2, due to improper handling of the 'random' argument in the checkSysPwd function, is publicly exploitable and fixed in version 10.3.4.", "title": "Summary" }, { "category": "general", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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", "title": "CVSSV4" } ], "product_status": { "known_affected": [ "CSAFPID-1" ] }, "references": [ { "category": "self", "summary": "CVE-2026-105133 | NCSC-NL Website", "url": "https://vulnerabilities.ncsc.nl/csaf/v2/2026/cve-2026-105133.json" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "baseScore": 7.3, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-1" ] } ], "title": "CVE-2026-105133" } ] }