{"id": "CVE-2016-8357", "bulletinFamily": "NVD", "title": "CVE-2016-8357", "description": "An issue was discovered in Lynxspring JENEsys BAS Bridge versions 1.1.8 and older. A user with read-only access can send commands to the software and the application will accept those commands. This would allow an attacker with read-only access to make changes within the application.", "published": "2017-02-13T21:59:00", "modified": "2017-02-17T14:11:00", "cvss": {"score": 5.5, "vector": "AV:N/AC:L/Au:S/C:P/I:P/A:N"}, "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-8357", "reporter": "cve@mitre.org", "references": ["https://ics-cert.us-cert.gov/advisories/ICSA-16-320-01", "http://www.securityfocus.com/bid/94344"], "cvelist": ["CVE-2016-8357"], "type": "cve", "lastseen": "2020-12-09T20:07:43", "edition": 5, "viewCount": 1, "enchantments": {"dependencies": {"references": [{"type": "ics", "idList": ["ICSA-16-320-01"]}], "modified": "2020-12-09T20:07:43", "rev": 2}, "score": {"value": 5.4, "vector": "NONE", "modified": "2020-12-09T20:07:43", "rev": 2}, "vulnersScore": 5.4}, "cpe": ["cpe:/a:lynxspring:jenesys_bas_bridge:1.1.8"], "affectedSoftware": [{"cpeName": "lynxspring:jenesys_bas_bridge", "name": "lynxspring jenesys bas bridge", "operator": "le", "version": "1.1.8"}], "cvss2": {"cvssV2": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 5.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "severity": "MEDIUM", "userInteractionRequired": false}, "cvss3": {"cvssV3": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 4.2}, "cpe23": ["cpe:2.3:a:lynxspring:jenesys_bas_bridge:1.1.8:*:*:*:*:*:*:*"], "cwe": ["CWE-264"], "scheme": null, "cpeConfiguration": {"CVE_data_version": "4.0", "nodes": [{"cpe_match": [{"cpe23Uri": "cpe:2.3:a:lynxspring:jenesys_bas_bridge:1.1.8:*:*:*:*:*:*:*", "versionEndIncluding": "1.1.8", "vulnerable": true}], "operator": "OR"}]}}

{"ics": [{"lastseen": "2020-12-18T03:21:54", "bulletinFamily": "info", "cvelist": ["CVE-2016-8361", "CVE-2016-8378", "CVE-2016-8357", "CVE-2016-8369"], "description": "## OVERVIEW\n\nIndependent researcher Maxim Rupp has identified several vulnerabilities in Lynxspring\u2019s JENEsys BAS Bridge application. Lynxspring has discontinued the BAS Bridge application and recommends that users upgrade to the Onyxx Bridge product.\n\nThese vulnerabilities could be exploited remotely.\n\n## AFFECTED PRODUCTS\n\nThe following BAS Bridge versions are affected:\n\n * BAS Bridge versions 1.1.8 and older.\n\n## IMPACT\n\nAttackers are able to change permissions and access controls and also gain access to the system. They are also able to retrieve credentials. The application transmits or stores authentication credentials and uses an insecure method that is susceptible to unauthorized interception and/or retrieval. The application also does not properly verify requests allowing attackers to use a cross\u2011site request forgery.\n\nImpact to individual organizations depends on many factors that are unique to each organization. NCCIC/ICS-CERT recommends that organizations evaluate the impact of these vulnerabilities based on their operational environment, architecture, and product implementation.\n\n## BACKGROUND\n\nLynxspring is a US-based company that maintains offices in Lee\u2019s Summit, Missouri.\n\nThe affected product, BAS Bridge, is a web-based SCADA system. According to Lynxspring, BAS Server is deployed across several sectors including Commercial Facilities, Critical Manufacturing, Energy, Water and Wastewater Systems, and others. Lynxspring estimates that this product is used primarily in the United States.\n\n## VULNERABILITY CHARACTERIZATION\n\n### VULNERABILITY OVERVIEW\n\n### PERMISSIONS, PRIVILEGES, AND ACCESS CONTROLSa\n\nA user with read-only access can send commands to the software and the application will accept those commands. This would allow an attacker with read-only access to make changes within the application.\n\nCVE-2016-8357b has been assigned to this vulnerability. A CVSS v3 base score of 7.1 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N).c\n\n### MISSING AUTHENTICATION FOR CRITICAL FUNCTIONd\n\nThe application uses a hard-coded username with no password allowing an attacker into the system without authentication.\n\nCVE-2016-8361e has been assigned to this vulnerability. A CVSS v3 base score of 8.6 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L).f\n\n### INSUFFICIENTLY PROTECTED CREDENTIALSg\n\nThe application\u2019s database lacks sufficient safeguards for protecting credentials.\n\nCVE-2016-8378h has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).i\n\n### CROSS-SITE REQUEST FORGERY (CSRF)j\n\nThe application does not sufficiently verify if a request was intentionally provided by the user who submitted the request.\n\nCVE-2016-8369k has been assigned to this vulnerability. A CVSS v3 base score of 9.8 has been assigned; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).l\n\n### VULNERABILITY DETAILS\n\n#### EXPLOITABILITY\n\nThese vulnerabilities could be exploited remotely.\n\n#### EXISTENCE OF EXPLOIT\n\nNo known public exploits specifically target these vulnerabilities.\n\n#### DIFFICULTY\n\nAn attacker with a low skill would be able to exploit these vulnerabilities.\n\n## MITIGATION\n\nLynxspring recommends replacing existing BAS Bridge installations with the Onyxx Bridge product. The Onyxx Bridge product has been tested by Lynxspring to be free of the existing vulnerabilities in the old product. BAS Bridge has been end of life since 2014 and no further updates will be issued.\n\nICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should:\n\n * Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet.\n * Locate control system networks and remote devices behind firewalls, and isolate them from the business network.\n * When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing that VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize that VPN is only as secure as the connected devices.\n\nICS-CERT reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.\n\nICS-CERT also provides a section for control systems security recommended practices on the ICS-CERT web page. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.\n\nAdditional mitigation guidance and recommended practices are publicly available in the ICS\u2011CERT Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies, that is available for download from the ICS-CERT web site.\n\nOrganizations observing any suspected malicious activity should follow their established internal procedures and report their findings to ICS-CERT for tracking and correlation against other incidents.\n\n * a. CWE-264: Permissions, Privileges, and Access Controls, https://cwe.mitre.org/data/definitions/264.html, web site last accessed November 15, 2016.\n * b. NVD, https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-8357, NIST uses this advisory to create the CVE web site report. This web site will be active sometime after publication of this advisory.\n * c. CVSS Calculator, https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N, web site last accessed November 15, 2016.\n * d. CWE-306: Missing Authentication for Critical Function, https://cwe.mitre.org/data/definitions/306.html, web site last accessed November 15, 2016.\n * e. NVD, https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-8361, NIST uses this advisory to create the CVE web site report. This web site will be active sometime after publication of this advisory.\n * f. CVSS Calculator, https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L, web site last accessed November 15, 2016.\n * g. CWE-522: Insufficiently Protected Credentials, https://cwe.mitre.org/data/definitions/522.html, web site last accessed November 15, 2016.\n * h. NVD, https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-8378, NIST uses this advisory to create the CVE web site report. This web site will be active sometime after publication of this advisory.\n * i. CVSS Calculator, https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, web site last accessed November 15, 2016.\n * j. CWE-352: Cross-Site Request Forgery (CSRF), https://cwe.mitre.org/data/definitions/352.html, web site last accessed November 15, 2016.\n * k. NVD, https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-8369, NIST uses this advisory to create the CVE web site report. This web site will be active sometime after publication of this advisory.\n * l. CVSS Calculator, https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, web site last accessed November 15, 2016.\n\n## \nContact Information\n\nFor any questions related to this report, please contact the CISA at: \n \nEmail: [CISAservicedesk@cisa.dhs.gov](<mailto:cisaservicedesk@cisa.dhs.gov>) \nToll Free: 1-888-282-0870\n\nFor industrial control systems cybersecurity information: https://us-cert.cisa.gov/ics \nor incident reporting: https://us-cert.cisa.gov/report\n\nCISA continuously strives to improve its products and services. You can help by choosing one of the links below to provide feedback about this product.\n\nThis product is provided subject to this Notification and this [Privacy &amp; Use](<https://www.dhs.gov/privacy-policy>) policy.\n\n**Please share your thoughts.**\n\nWe recently updated our anonymous [product survey](<https://surveymonkey.com/r/G8STDRY?product=https://us-cert.cisa.gov/ics/advisories/ICSA-16-320-01>); we'd welcome your feedback.\n", "edition": 15, "modified": "2016-11-15T00:00:00", "published": "2016-11-15T00:00:00", "id": "ICSA-16-320-01", "href": "https://www.us-cert.gov//ics/advisories/ICSA-16-320-01", "title": "Lynxspring JENEsys BAS Bridge Vulnerabilities", "type": "ics", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}]}