{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-0447 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2018-0447 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-0447 is a medium-severity vulnerability in Cisco Email Security Appliance, published on 5 Oct 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-2018-0447 and fix it if it is affected.\n\nWhat it is: CVE-2018-0447 is a medium-severity vulnerability in Cisco Email Security Appliance, published on 5 Oct 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-2018-0447 in the wild and no public exploit code.\n\nAffected product: Cisco Email Security Appliance. 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-2018-0447/ (Markdown: https://insights.sbomify.com/CVE-2018-0447/index.md)","id":"CVE-2018-0447","markdown":"https://insights.sbomify.com/CVE-2018-0447/index.md","name":"CVE-2018-0447","record":{"aliases":["GHSA-6x9p-wvp8-hwgq"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Email Security Appliance","requires_auth":"none","summary":"Remote attackers can bypass URL filtering on Cisco Email Security Appliances by sending crafted SPF packets, allowing malicious URLs to pass through.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"email_security_appliance","vendor":"cisco"}],"cvss":{"score":5.3,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.0"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"},{"id":"CWE-284","name":"Improper Access Control"}],"description":"A vulnerability in the anti-spam protection mechanisms of Cisco AsyncOS Software for the Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass certain content filters on an affected device. The vulnerability is due to incomplete input and validation checking mechanisms for certain Sender Policy Framework (SPF) messages that are sent to an affected device. An attacker could exploit this vulnerability by sending a customized SPF packet to an affected device. If successful, an exploit could allow the attacker to bypass the URL filters that are configured for the affected device, which could allow malicious URLs to pass through the device.","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 Email Security Appliance URL Filtering Bypass Vulnerability","id":"CVE-2018-0447","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"cisco:email_security_appliance","products":["cisco:email_security_appliance"],"type":"security_feature_bypass","year":"2018"},"n_packages":0,"n_references":3,"next":{"headline":"Cisco Digital Network Architecture Center Authentication Bypass Vulnerability","id":"CVE-2018-0448"},"packages":[],"prev":{"headline":"Cisco Industrial Network Director Cross-Site Request Forgery Vulnerability","id":"CVE-2018-0446"},"products":["Cisco Email Security Appliance (ESA)"],"published":"2018-10-05","related":[{"cvss_score":9.8,"headline":"Cisco Email Security Appliance and Cisco Secure Email and Web Manager External Authentication Bypass Vulnerability","id":"CVE-2022-20798","kev_date_added":null,"published":"2022-06-15"},{"cvss_score":7.8,"headline":"Denial of service in n/a","id":"CVE-2015-6291","kev_date_added":null,"published":"2015-11-06"},{"cvss_score":7.7,"headline":"Cisco Email Security Appliance and Cisco Secure Email and Web Manager Information Disclosure Vulnerability","id":"CVE-2022-20664","kev_date_added":null,"published":"2022-06-15"},{"cvss_score":7.5,"headline":"Denial of service in Cisco Secure Email","id":"CVE-2022-20960","kev_date_added":null,"published":"2022-11-03"},{"cvss_score":7.5,"headline":"Security feature bypass in Email Security Appliance (ESA)","id":"CVE-2018-0419","kev_date_added":null,"published":"2018-08-15"},{"cvss_score":7.5,"headline":"Security feature bypass in Cisco AsyncOS through WSA10.0.0-000","id":"CVE-2016-1480","kev_date_added":null,"published":"2016-10-28"},{"cvss_score":7.5,"headline":"Denial of service in Cisco AsyncOS through 9.7.0-125","id":"CVE-2016-1481","kev_date_added":null,"published":"2016-10-28"}],"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":"partial"},"state":"PUBLISHED","updated":"2024-11-26","vendors":["Cisco"]},"summary":"Remote attackers can bypass URL filtering on Cisco Email Security Appliances by sending crafted SPF packets, allowing malicious URLs to pass through.","url":"https://insights.sbomify.com/CVE-2018-0447/"}