{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-20270 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-20270 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-20270 is a medium-severity denial of service vulnerability in Cisco Secure Firewall Threat Defense, published on 1 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-20270 and fix it if it is affected.\n\nWhat it is: CVE-2023-20270 is a medium-severity denial of service vulnerability in Cisco Secure Firewall Threat Defense, published on 1 Nov 2023. 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-2023-20270 in the wild and no public exploit code.\n\nAffected product: Cisco Secure Firewall Threat Defense. 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-2023-20270/ (Markdown: https://insights.sbomify.com/CVE-2023-20270/index.md)","id":"CVE-2023-20270","markdown":"https://insights.sbomify.com/CVE-2023-20270/index.md","name":"CVE-2023-20270","record":{"aliases":["GHSA-x6h4-hr96-7xf2"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["denial_of_service","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco FTD Software","requires_auth":"none","summary":"Unauthenticated remote attackers can cause a denial of service or bypass security policies on Cisco Firepower Threat Defense devices by sending crafted SMB packets.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"secure_firewall_threat_defense","vendor":"cisco"}],"cvss":{"score":5.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"A vulnerability in the interaction between the Server Message Block (SMB) protocol preprocessor and the Snort 3 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error-checking when the Snort 3 detection engine is processing SMB traffic. An attacker could exploit this vulnerability by sending a crafted SMB packet stream through an affected device. A successful exploit could allow the attacker to cause the Snort process to reload, resulting in a DoS condition.","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":"Denial of service in Cisco Firepower Threat Defense Software","id":"CVE-2023-20270","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"cisco:secure_firewall_threat_defense","products":["cisco:secure_firewall_threat_defense"],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"SQL injection in Cisco Evolved Programmable Network Manager (EPNM)","id":"CVE-2023-20271"},"packages":[],"prev":{"headline":"Cisco Adaptive Security Appliance and Firepower Threat Defense Unauthorized Access","id":"CVE-2023-20269"},"products":["Cisco Firepower Threat Defense Software"],"published":"2023-11-01","related":[{"cvss_score":9.3,"headline":"Hardcoded credentials in Cisco Firepower Threat Defense Software","id":"CVE-2024-20412","kev_date_added":null,"published":"2024-10-23"},{"cvss_score":8.6,"headline":"Memory corruption in Cisco Firepower Threat Defense Software","id":"CVE-2024-20330","kev_date_added":null,"published":"2024-10-23"},{"cvss_score":8.6,"headline":"Cisco Firepower Threat Defense Software for Firepower 2100 Series TLS Denial of Service Vulnerability","id":"CVE-2024-20339","kev_date_added":null,"published":"2024-10-23"},{"cvss_score":8.6,"headline":"Cisco Firepower Threat Defense Software Snort Firewall Denial of Service Vulnerability","id":"CVE-2024-20351","kev_date_added":null,"published":"2024-10-23"},{"cvss_score":8.6,"headline":"Denial of service in Cisco Firepower Threat Defense Software","id":"CVE-2023-20083","kev_date_added":null,"published":"2023-11-01"},{"cvss_score":8.6,"headline":"Denial of service in Cisco Firepower Threat Defense Software","id":"CVE-2023-20244","kev_date_added":null,"published":"2023-11-01"},{"cvss_score":8.6,"headline":"Memory corruption in Cisco Firepower Threat Defense Software","id":"CVE-2022-20946","kev_date_added":null,"published":"2022-11-10"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-02","vendors":["Cisco"]},"summary":"Unauthenticated remote attackers can cause a denial of service or bypass security policies on Cisco Firepower Threat Defense devices by sending crafted SMB packets.","url":"https://insights.sbomify.com/CVE-2023-20270/"}