{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-0271 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2018-0271 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-0271 is a critical authentication bypass vulnerability in Cisco Digital Network Architecture Center, published on 17 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-0271 and fix it if it is affected.\n\nWhat it is: CVE-2018-0271 is a critical authentication bypass vulnerability in Cisco Digital Network Architecture Center, published on 17 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-0271 in the wild and no public exploit code.\n\nAffected product: Cisco Digital Network Architecture Center. 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-2018-0271/ (Markdown: https://insights.sbomify.com/CVE-2018-0271/index.md)","id":"CVE-2018-0271","markdown":"https://insights.sbomify.com/CVE-2018-0271/index.md","name":"CVE-2018-0271","record":{"aliases":["GHSA-cmgw-hg4c-4pp2"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["privilege_escalation","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco DNA Center","requires_auth":"none","summary":"Unauthenticated remote attackers can bypass authentication in Cisco DNA Center API gateway via crafted URLs, gaining elevated privileges.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"digital_network_architecture_center","vendor":"cisco"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"A vulnerability in the API gateway of the Cisco Digital Network Architecture (DNA) Center could allow an unauthenticated, remote attacker to bypass authentication and access critical services. The vulnerability is due to a failure to normalize URLs prior to servicing requests. An attacker could exploit this vulnerability by submitting a crafted URL designed to exploit the issue. A successful exploit could allow the attacker to gain unauthenticated access to critical services, resulting in elevated privileges in DNA Center. This vulnerability affects Cisco DNA Center Software Releases prior to 1.1.2. Cisco Bug IDs: CSCvi09394.","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":"Auth bypass in Cisco Digital Network Architecture Center","id":"CVE-2018-0271","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2018"},"n_packages":0,"n_references":2,"next":{"headline":"Denial of service in Cisco Firepower Threat Defense","id":"CVE-2018-0272"},"packages":[],"prev":{"headline":"Cross-site request forgery in Cisco IoT Field Network Director","id":"CVE-2018-0270"},"products":["Cisco Digital Network Architecture Center"],"published":"2018-05-17","related":[{"cvss_score":10,"headline":"Hardcoded credentials in Cisco Digital Network Architecture Center","id":"CVE-2018-0222","kev_date_added":null,"published":"2018-05-17"},{"cvss_score":10,"headline":"Misconfiguration in Cisco Digital Network Architecture Center","id":"CVE-2018-0268","kev_date_added":null,"published":"2018-05-17"},{"cvss_score":9.8,"headline":"Cisco Digital Network Architecture Center Authentication Bypass Vulnerability","id":"CVE-2018-0448","kev_date_added":null,"published":"2018-10-05"},{"cvss_score":9.8,"headline":"Cisco Digital Network Architecture Center Unauthenticated Access Vulnerability","id":"CVE-2018-15386","kev_date_added":null,"published":"2018-10-05"},{"cvss_score":9.3,"headline":"Cisco DNA Center Authentication Bypass Vulnerability","id":"CVE-2019-1848","kev_date_added":null,"published":"2019-06-20"},{"cvss_score":6.5,"headline":"Cisco Digital Network Architecture Center Information Disclosure Vulnerability","id":"CVE-2020-3391","kev_date_added":null,"published":"2020-07-02"}],"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":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-11-29","vendors":["n/a"]},"summary":"Unauthenticated remote attackers can bypass authentication in Cisco DNA Center API gateway via crafted URLs, gaining elevated privileges.","url":"https://insights.sbomify.com/CVE-2018-0271/"}