{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-3253 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-3253 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-3253 is a medium-severity vulnerability in Cisco Secure Firewall Threat Defense, published on 6 May 2020. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-3253 and fix it if it is affected.\n\nWhat it is: CVE-2020-3253 is a medium-severity vulnerability in Cisco Secure Firewall Threat Defense, published on 6 May 2020. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-3253 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-2020-3253/ (Markdown: https://insights.sbomify.com/CVE-2020-3253/index.md)","id":"CVE-2020-3253","markdown":"https://insights.sbomify.com/CVE-2020-3253/index.md","name":"CVE-2020-3253","record":{"aliases":["GHSA-v33g-rjxr-6hm4"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["privilege_escalation","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Cisco FTD","requires_auth":"high_privilege","summary":"An authenticated local attacker can bypass expert mode restrictions to gain root shell access on Cisco Firepower Threat Defense devices.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"secure_firewall_threat_defense","vendor":"cisco"}],"cvss":{"score":6.7,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"A vulnerability in the support tunnel feature of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to access the shell of an affected device even though expert mode is disabled. The vulnerability is due to improper configuration of the support tunnel feature. An attacker could exploit this vulnerability by enabling the support tunnel, setting a key, and deriving the tunnel password. A successful exploit could allow the attacker to run any system command with root access on an affected 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 Firepower Threat Defense Software Shell Access Vulnerability","id":"CVE-2020-3253","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"cisco:secure_firewall_threat_defense","products":["cisco:secure_firewall_threat_defense"],"type":"security_feature_bypass","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Denial of service in Cisco Adaptive Security Appliance (ASA) Software","id":"CVE-2020-3254"},"packages":[],"prev":{"headline":"Multiple Vulnerabilities in Cisco UCS Director and Cisco UCS Director Express for Big Data","id":"CVE-2020-3252"},"products":["Cisco Firepower Threat Defense Software"],"published":"2020-05-06","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-11-15","vendors":["Cisco"]},"summary":"An authenticated local attacker can bypass expert mode restrictions to gain root shell access on Cisco Firepower Threat Defense devices.","url":"https://insights.sbomify.com/CVE-2020-3253/"}