{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2019-12706 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2019-12706 yet. Limit exposure of the affected software until one is available.","what":"CVE-2019-12706 is a medium-severity vulnerability in Cisco Email Security Appliance (ESA), published on 2 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2019-12706 and fix it if it is affected.\n\nWhat it is: CVE-2019-12706 is a medium-severity vulnerability in Cisco Email Security Appliance (ESA), published on 2 Oct 2019. 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-2019-12706 in the wild and no public exploit code.\n\nAffected product: Cisco Email Security Appliance (ESA). 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-2019-12706/ (Markdown: https://insights.sbomify.com/CVE-2019-12706/index.md)","id":"CVE-2019-12706","markdown":"https://insights.sbomify.com/CVE-2019-12706/index.md","name":"CVE-2019-12706","record":{"aliases":["GHSA-4xfr-4873-x36j"],"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":"Unauthenticated attackers can bypass email header filters on Cisco ESA devices by sending custom SPF packets, allowing malicious content 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_firmware","vendor":"cisco"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.0"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"A vulnerability in the Sender Policy Framework (SPF) functionality of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the configured user filters on an affected device. The vulnerability exists because the affected software insufficiently validates certain incoming SPF messages. An attacker could exploit this vulnerability by sending a custom SPF packet to an affected device. A successful exploit could allow the attacker to bypass the configured header filters, which could allow malicious content 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 Filter Bypass Vulnerability","id":"CVE-2019-12706","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2019"},"n_packages":0,"n_references":1,"next":{"headline":"Multiple Cisco Unified Communications Products Cross-Site Scripting Vulnerability","id":"CVE-2019-12707"},"packages":[],"prev":{"headline":"Cisco Expressway Series and TelePresence Video Communication Server Cross-Site Scripting Vulnerability","id":"CVE-2019-12705"},"products":["Cisco Email Security Appliance (ESA)"],"published":"2019-10-02","related":[{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2016-6406","kev_date_added":null,"published":"2016-09-22"},{"cvss_score":8.6,"headline":"Cisco Email Security Appliance Memory Corruption Denial of Service Vulnerability","id":"CVE-2018-15453","kev_date_added":null,"published":"2019-01-10"},{"cvss_score":7.5,"headline":"Security feature bypass in Cisco Email Security Appliance","id":"CVE-2017-6671","kev_date_added":null,"published":"2017-06-13"},{"cvss_score":7.5,"headline":"Security feature bypass in Cisco AsyncOS 10.0.0-125 and 9.7.1-066","id":"CVE-2016-6458","kev_date_added":null,"published":"2016-11-19"},{"cvss_score":5.8,"headline":"Cisco Email Security Appliance MP3 Content Filter Bypass Vulnerability","id":"CVE-2019-15971","kev_date_added":null,"published":"2019-11-26"},{"cvss_score":5.8,"headline":"Cisco Email Security Appliance URL Filtering Bypass Vulnerability","id":"CVE-2019-15988","kev_date_added":null,"published":"2019-11-26"}],"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":"2024-11-19","vendors":["Cisco"]},"summary":"Unauthenticated attackers can bypass email header filters on Cisco ESA devices by sending custom SPF packets, allowing malicious content to pass through.","url":"https://insights.sbomify.com/CVE-2019-12706/"}