{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2022-20813 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2022-20813 yet. Limit exposure of the affected software until one is available.","what":"CVE-2022-20813 is a critical vulnerability in Cisco TelePresence Video Communication Server (VCS) Expressway, published on 6 Jul 2022. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-20813 and fix it if it is affected.\n\nWhat it is: CVE-2022-20813 is a critical vulnerability in Cisco TelePresence Video Communication Server (VCS) Expressway, published on 6 Jul 2022. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2022-20813 in the wild and no public exploit code.\n\nAffected product: Cisco TelePresence Video Communication Server (VCS) Expressway. 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-2022-20813/ (Markdown: https://insights.sbomify.com/CVE-2022-20813/index.md)","id":"CVE-2022-20813","markdown":"https://insights.sbomify.com/CVE-2022-20813/index.md","name":"CVE-2022-20813","record":{"aliases":["GHSA-4w83-58w6-759f"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["data_modify","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco Expressway/VCS","requires_auth":"high_privilege","summary":"Remote attackers can overwrite arbitrary files or exploit null byte poisoning in Cisco Expressway and VCS devices via the API or web interface.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"expressway","vendor":"cisco"},{"product":"telepresence_video_communication_server","vendor":"cisco"}],"cvss":{"score":9,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L","version":"3.1"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"},{"id":"CWE-158","name":"Improper Neutralization of Null Byte or NUL Character"}],"description":"Multiple vulnerabilities in the API and in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow a remote attacker to overwrite arbitrary files or conduct null byte poisoning attacks on an affected device. Note: Cisco Expressway Series refers to the Expressway Control (Expressway-C) device and the Expressway Edge (Expressway-E) device. For more information about these vulnerabilities, see the Details section of this advisory.","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 Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities","id":"CVE-2022-20813","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"file_upload","year":"2022"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco Expressway Series and Cisco TelePresence VCS Improper Certificate Validation Vulnerability","id":"CVE-2022-20814"},"packages":[],"prev":{"headline":"Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities","id":"CVE-2022-20812"},"products":["Cisco TelePresence Video Communication Server (VCS) Expressway"],"published":"2022-07-06","related":[{"cvss_score":9.6,"headline":"Cross-site request forgery in Cisco TelePresence Video Communication Server (VCS) Expressway","id":"CVE-2024-20252","kev_date_added":null,"published":"2024-02-07"},{"cvss_score":9.6,"headline":"Cross-site request forgery in Cisco TelePresence Video Communication Server (VCS) Expressway","id":"CVE-2024-20254","kev_date_added":null,"published":"2024-02-07"},{"cvss_score":9,"headline":"Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities","id":"CVE-2022-20812","kev_date_added":null,"published":"2022-07-06"},{"cvss_score":8.6,"headline":"Denial of service in Cisco Expressway Series Software and Cisco TelePresence VCS Software All versions prior to version X8.8.2 are vulnerable","id":"CVE-2017-3790","kev_date_added":null,"published":"2017-02-01"},{"cvss_score":8.2,"headline":"Cross-site request forgery in Cisco TelePresence Video Communication Server (VCS) Expressway","id":"CVE-2024-20255","kev_date_added":null,"published":"2024-02-07"},{"cvss_score":6.7,"headline":"Cisco Expressway Series and TelePresence Video Communication Server Remote Code Execution Vulnerability","id":"CVE-2021-34716","kev_date_added":null,"published":"2021-08-18"}],"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":"2024-11-06","vendors":["Cisco"]},"summary":"Remote attackers can overwrite arbitrary files or exploit null byte poisoning in Cisco Expressway and VCS devices via the API or web interface.","url":"https://insights.sbomify.com/CVE-2022-20813/"}