{"id":"CVE-2023-39420","aliases":["EUVD-2023-43144","GHSA-pw6p-wr56-q7jh"],"status":"published","title":"Use of Hard-coded Credentials in RDPCore.dll","description":"The RDPCore.dll component as used in the IRM Next Generation booking engine, allows a remote user to connect to customers with an \"admin\" account and a corresponding password computed daily by a routine inside the DLL file. Once reverse-engineered, this routine can help an attacker generate the daily password and connect to application customers. Given that this is an administrative account, anyone logging into a customer deployment has full, unrestricted access to the application.","severity":{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00734,"percentile":0.54899,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-798"],"published":"2023-09-07T12:17:09Z","modified":"2026-06-17T06:12:16Z","products":[{"vendor":"resort data processing, inc.","product":"irm next generation"},{"vendor":"resortdata","product":"internet_reservation_module_next_generation"}],"references":[{"url":"https://bitdefender.com/blog/labs/check-out-with-extra-charges-vulnerabilities-in-hotel-booking-engine-explained/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-39420"},{"url":"https://bitdefender.com/blog/labs/check-out-with-extra-charges-vulnerabilities-in-hotel-booking-engine-explained"},{"url":"https://github.com/advisories/GHSA-pw6p-wr56-q7jh"}],"sources":{"cve":[{"id":"CVE-2023-39420","title":"Use of Hard-coded Credentials in RDPCore.dll","description":"The RDPCore.dll component as used in the IRM Next Generation booking engine, allows a remote user to connect to customers with an \"admin\" account and a corresponding password computed daily by a routine inside the DLL file. Once reverse-engineered, this routine can help an attacker generate the daily password and connect to application customers. Given that this is an administrative account, anyone logging into a customer deployment has full, unrestricted access to the application.","status":"published","published":"2023-09-07T12:17:09.872Z","modified":"2024-09-26T19:15:02.834Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:35:33.138994Z"}],"euvd":[{"id":"EUVD-2023-43144","description":"The RDPCore.dll component as used in the IRM Next Generation booking engine, allows a remote user to connect to customers with an \"admin\" account and a corresponding password computed daily by a routine inside the DLL file. Once reverse-engineered, this routine can help an attacker generate the daily password and connect to application customers. Given that this is an administrative account, anyone logging into a customer deployment has full, unrestricted access to the application.","status":"published","published":"2023-09-07T12:17:09Z","modified":"2024-09-26T19:15:02Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:28:07.565611Z"}],"ghsa":[{"id":"GHSA-pw6p-wr56-q7jh","title":"The RDPCore.dll component as used in the IRM Next Generation booking engine, allows a remote user...","description":"The RDPCore.dll component as used in the IRM Next Generation booking engine, allows a remote user to connect to customers with an \"admin\" account and a corresponding password computed daily by a routine inside the DLL file. Once reverse-engineered, this routine can help an attacker generate the daily password and connect to application customers. Given that this is an administrative account, anyone logging into a customer deployment has full, unrestricted access to the application.","status":"published","published":"2023-09-07T15:30:30Z","modified":"2024-04-04T07:32:49Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:56:52.639328Z"}],"nvd":[{"id":"CVE-2023-39420","description":"The RDPCore.dll component as used in the IRM Next Generation booking engine, allows a remote user to connect to customers with an \"admin\" account and a corresponding password computed daily by a routine inside the DLL file. Once reverse-engineered, this routine can help an attacker generate the daily password and connect to application customers. Given that this is an administrative account, anyone logging into a customer deployment has full, unrestricted access to the application.","status":"published","published":"2023-09-07T13:15:08.517Z","modified":"2026-06-17T06:12:16.887Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-798"],"updated_at":"2026-11-02T14:08:28.268644Z"}]}}