{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-1256 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-1256 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-1256 is a medium-severity path traversal vulnerability in Cisco Secure Firewall Threat Defense, published on 29 Apr 2021. 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-2021-1256 and fix it if it is affected.\n\nWhat it is: CVE-2021-1256 is a medium-severity path traversal vulnerability in Cisco Secure Firewall Threat Defense, published on 29 Apr 2021. 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-2021-1256 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-2021-1256/ (Markdown: https://insights.sbomify.com/CVE-2021-1256/index.md)","id":"CVE-2021-1256","markdown":"https://insights.sbomify.com/CVE-2021-1256/index.md","name":"CVE-2021-1256","record":{"aliases":["GHSA-x8wc-vwc8-w26v"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["data_modify","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Cisco FTD Software","requires_auth":"high_privilege","summary":"Authenticated local attackers can overwrite arbitrary files via directory traversal in the CLI, potentially causing system instability.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"secure_firewall_threat_defense","vendor":"cisco"}],"cvss":{"score":6,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"},{"id":"CWE-552","name":"Files or Directories Accessible to External Parties"}],"description":"A vulnerability in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to overwrite files on the file system of an affected device by using directory traversal techniques. A successful exploit could cause system instability if important system files are overwritten. This vulnerability is due to insufficient validation of user input for the file path in a specific CLI command. An attacker could exploit this vulnerability by logging in to a targeted device and issuing a specific CLI command with crafted user input. A successful exploit could allow the attacker to overwrite arbitrary files on the file system of the affected device. The attacker would need valid user credentials on 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 Firepower Threat Defense Software Command File Overwrite Vulnerability","id":"CVE-2021-1256","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"cisco:secure_firewall_threat_defense","products":["cisco:secure_firewall_threat_defense"],"type":"path_traversal","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Cisco DNA Center Cross-Site Request Forgery Vulnerability","id":"CVE-2021-1257"},"packages":[],"prev":{"headline":"Cisco Data Center Network Manager REST API Vulnerabilities","id":"CVE-2021-1255"},"products":["Cisco Firepower Threat Defense Software"],"published":"2021-04-29","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":"partial"},"state":"PUBLISHED","updated":"2024-11-08","vendors":["Cisco"]},"summary":"Authenticated local attackers can overwrite arbitrary files via directory traversal in the CLI, potentially causing system instability.","url":"https://insights.sbomify.com/CVE-2021-1256/"}