{"answers":{"affected":"It affects 114 products.","exploited":"There is no known exploitation of CVE-2019-1859 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2019-1859 yet. Limit exposure of the affected software until one is available.","what":"CVE-2019-1859 is a high-severity authentication bypass vulnerability in Cisco Small Business 200 Series Smart Switches, published on 3 May 2019. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-1859 and fix it if it is affected.\n\nWhat it is: CVE-2019-1859 is a high-severity authentication bypass vulnerability in Cisco Small Business 200 Series Smart Switches, published on 3 May 2019. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2019-1859 in the wild and no public exploit code.\n\nAffected product: Cisco Small Business 200 Series Smart Switches. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2019-1859/ (Markdown: https://insights.sbomify.com/CVE-2019-1859/index.md)","id":"CVE-2019-1859","markdown":"https://insights.sbomify.com/CVE-2019-1859/index.md","name":"CVE-2019-1859","record":{"aliases":["GHSA-vxf6-wwjr-wqh4"],"analysis":{"component_type":"network_device","fix_type":"configuration_change","impacts":["privilege_escalation","security_bypass"],"network_reachable":"yes","non_default_config":true,"product_category":"Cisco Small Business Switch","requires_auth":"high_privilege","summary":"Attacker bypasses SSH certificate authentication to gain administrative access if default credentials are unchanged, requiring disabling certificate auth as mitigation.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"sf200-24_firmware","vendor":"cisco"},{"product":"sf200-24fp_firmware","vendor":"cisco"},{"product":"sf200-24p_firmware","vendor":"cisco"},{"product":"sf200-48_firmware","vendor":"cisco"},{"product":"sf200-48p_firmware","vendor":"cisco"},{"product":"sf250-24_firmware","vendor":"cisco"},{"product":"sf250-24p_firmware","vendor":"cisco"},{"product":"sf250-48_firmware","vendor":"cisco"},{"product":"sf250-48hp_firmware","vendor":"cisco"},{"product":"sf300-08_firmware","vendor":"cisco"},{"product":"sf300-24_firmware","vendor":"cisco"},{"product":"sf300-24mp_firmware","vendor":"cisco"},{"product":"sf300-24p_firmware","vendor":"cisco"},{"product":"sf300-24pp_firmware","vendor":"cisco"},{"product":"sf300-48_firmware","vendor":"cisco"},{"product":"sf300-48p_firmware","vendor":"cisco"},{"product":"sf300-48pp_firmware","vendor":"cisco"},{"product":"sf302-08_firmware","vendor":"cisco"},{"product":"sf302-08mp_firmware","vendor":"cisco"},{"product":"sf302-08mpp_firmware","vendor":"cisco"},{"product":"sf302-08p_firmware","vendor":"cisco"},{"product":"sf302-08pp_firmware","vendor":"cisco"},{"product":"sf350-48_firmware","vendor":"cisco"},{"product":"sf350-48mp_firmware","vendor":"cisco"},{"product":"sf350-48p_firmware","vendor":"cisco"},{"product":"sf500-24_firmware","vendor":"cisco"},{"product":"sf500-24p_firmware","vendor":"cisco"},{"product":"sf500-48_firmware","vendor":"cisco"},{"product":"sf500-48p_firmware","vendor":"cisco"},{"product":"sf550x-24_firmware","vendor":"cisco"},{"product":"sf550x-24mp_firmware","vendor":"cisco"},{"product":"sf550x-24p_firmware","vendor":"cisco"},{"product":"sf550x-48_firmware","vendor":"cisco"},{"product":"sf550x-48mp_firmware","vendor":"cisco"},{"product":"sf550x-48p_firmware","vendor":"cisco"},{"product":"sg200-08_firmware","vendor":"cisco"},{"product":"sg200-08p_firmware","vendor":"cisco"},{"product":"sg200-10fp_firmware","vendor":"cisco"},{"product":"sg200-18_firmware","vendor":"cisco"},{"product":"sg200-26_firmware","vendor":"cisco"},{"product":"sg200-26fp_firmware","vendor":"cisco"},{"product":"sg200-26p_firmware","vendor":"cisco"},{"product":"sg200-50_firmware","vendor":"cisco"},{"product":"sg200-50fp_firmware","vendor":"cisco"},{"product":"sg200-50p_firmware","vendor":"cisco"},{"product":"sg250-08_firmware","vendor":"cisco"},{"product":"sg250-08hp_firmware","vendor":"cisco"},{"product":"sg250-10p_firmware","vendor":"cisco"},{"product":"sg250-18_firmware","vendor":"cisco"},{"product":"sg250-26_firmware","vendor":"cisco"},{"product":"sg250-26hp_firmware","vendor":"cisco"},{"product":"sg250-26p_firmware","vendor":"cisco"},{"product":"sg250-50_firmware","vendor":"cisco"},{"product":"sg250-50hp_firmware","vendor":"cisco"},{"product":"sg250-50p_firmware","vendor":"cisco"},{"product":"sg250x-24_firmware","vendor":"cisco"},{"product":"sg250x-24p_firmware","vendor":"cisco"},{"product":"sg250x-48_firmware","vendor":"cisco"},{"product":"sg250x-48p_firmware","vendor":"cisco"},{"product":"sg300-10_firmware","vendor":"cisco"},{"product":"sg300-10mp_firmware","vendor":"cisco"},{"product":"sg300-10mpp_firmware","vendor":"cisco"},{"product":"sg300-10p_firmware","vendor":"cisco"},{"product":"sg300-10pp_firmware","vendor":"cisco"},{"product":"sg300-10sfp_firmware","vendor":"cisco"},{"product":"sg300-20_firmware","vendor":"cisco"},{"product":"sg300-28_firmware","vendor":"cisco"},{"product":"sg300-28mp_firmware","vendor":"cisco"},{"product":"sg300-28p_firmware","vendor":"cisco"},{"product":"sg300-28pp_firmware","vendor":"cisco"},{"product":"sg300-52_firmware","vendor":"cisco"},{"product":"sg300-52mp_firmware","vendor":"cisco"},{"product":"sg300-52p_firmware","vendor":"cisco"},{"product":"sg350-10_firmware","vendor":"cisco"},{"product":"sg350-10mp_firmware","vendor":"cisco"},{"product":"sg350-10p_firmware","vendor":"cisco"},{"product":"sg350-28_firmware","vendor":"cisco"},{"product":"sg350-28mp_firmware","vendor":"cisco"},{"product":"sg350-28p_firmware","vendor":"cisco"},{"product":"sg350x-24_firmware","vendor":"cisco"},{"product":"sg350x-24mp_firmware","vendor":"cisco"},{"product":"sg350x-24p_firmware","vendor":"cisco"},{"product":"sg350x-48_firmware","vendor":"cisco"},{"product":"sg350x-48mp_firmware","vendor":"cisco"},{"product":"sg350x-48p_firmware","vendor":"cisco"},{"product":"sg350xg-24f_firmware","vendor":"cisco"},{"product":"sg350xg-24t_firmware","vendor":"cisco"},{"product":"sg350xg-2f10_firmware","vendor":"cisco"},{"product":"sg350xg-48t_firmware","vendor":"cisco"},{"product":"sg355-10p_firmware","vendor":"cisco"},{"product":"sg500-28_firmware","vendor":"cisco"},{"product":"sg500-28mpp_firmware","vendor":"cisco"},{"product":"sg500-28p_firmware","vendor":"cisco"},{"product":"sg500-52_firmware","vendor":"cisco"},{"product":"sg500-52mp_firmware","vendor":"cisco"},{"product":"sg500-52p_firmware","vendor":"cisco"},{"product":"sg500x-24_firmware","vendor":"cisco"},{"product":"sg500x-24p_firmware","vendor":"cisco"},{"product":"sg500x-48_firmware","vendor":"cisco"},{"product":"sg500x-48p_firmware","vendor":"cisco"},{"product":"sg500xg-8f8t_firmware","vendor":"cisco"},{"product":"sg550x-24_firmware","vendor":"cisco"},{"product":"sg550x-24mp_firmware","vendor":"cisco"},{"product":"sg550x-24mpp_firmware","vendor":"cisco"},{"product":"sg550x-24p_firmware","vendor":"cisco"},{"product":"sg550x-48_firmware","vendor":"cisco"},{"product":"sg550x-48mp_firmware","vendor":"cisco"},{"product":"sg550x-48p_firmware","vendor":"cisco"},{"product":"sx550x-12f_firmware","vendor":"cisco"},{"product":"sx550x-16ft_firmware","vendor":"cisco"},{"product":"sx550x-24_firmware","vendor":"cisco"},{"product":"sx550x-24f_firmware","vendor":"cisco"},{"product":"sx550x-24ft_firmware","vendor":"cisco"},{"product":"sx550x-52_firmware","vendor":"cisco"}],"cvss":{"score":7.2,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"},{"id":"CWE-285","name":"Improper Authorization"}],"description":"A vulnerability in the Secure Shell (SSH) authentication process of Cisco Small Business Switches software could allow an attacker to bypass client-side certificate authentication and revert to password authentication. The vulnerability exists because OpenSSH mishandles the authentication process. An attacker could exploit this vulnerability by attempting to connect to the device via SSH. A successful exploit could allow the attacker to access the configuration as an administrative user if the default credentials are not changed. There are no workarounds available; however, if client-side certificate authentication is enabled, disable it and use strong password authentication. Client-side certificate authentication is disabled by default.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Cisco Small Business Switches Secure Shell Certificate Authentication Bypass Vulnerability","id":"CVE-2019-1859","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2019"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco Unified Intelligence Center Remote File Injection Vulnerability","id":"CVE-2019-1860"},"packages":[],"prev":{"headline":"Cisco FXOS and NX-OS Software Simple Network Management Protocol Denial of Service Vulnerability","id":"CVE-2019-1858"},"products":["Cisco Small Business 200 Series Smart Switches"],"published":"2019-05-03","related":[{"cvss_score":9.8,"headline":"Cisco Small Business Switches Privileged Access Vulnerability","id":"CVE-2018-15439","kev_date_added":null,"published":"2018-11-08"},{"cvss_score":8.6,"headline":"Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability","id":"CVE-2020-3363","kev_date_added":null,"published":"2020-08-17"},{"cvss_score":8.1,"headline":"Cisco Small Business Smart and Managed Switches Session Management Vulnerability","id":"CVE-2020-3297","kev_date_added":null,"published":"2020-07-02"},{"cvss_score":8.1,"headline":"Cisco Small Business Smart and Managed Switches Cross-Site Request Forgery Vulnerability","id":"CVE-2019-12636","kev_date_added":null,"published":"2019-10-16"},{"cvss_score":7.5,"headline":"Cisco Small Business Switches Information Disclosure Vulnerability","id":"CVE-2019-15993","kev_date_added":null,"published":"2020-09-23"},{"cvss_score":6.1,"headline":"Cisco Small Business Smart and Managed Switches Cross-Site Scripting Vulnerability","id":"CVE-2019-12718","kev_date_added":null,"published":"2019-10-16"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-11-20","vendors":["Cisco"]},"summary":"Attacker bypasses SSH certificate authentication to gain administrative access if default credentials are unchanged, requiring disabling certificate auth as mitigation.","url":"https://insights.sbomify.com/CVE-2019-1859/"}