{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-34716 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-34716 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-34716 is a medium-severity vulnerability in Cisco TelePresence Video Communication Server (VCS) Expressway, published on 18 Aug 2021. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-34716 and fix it if it is affected.\n\nWhat it is: CVE-2021-34716 is a medium-severity vulnerability in Cisco TelePresence Video Communication Server (VCS) Expressway, published on 18 Aug 2021. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-34716 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-2021-34716/ (Markdown: https://insights.sbomify.com/CVE-2021-34716/index.md)","id":"CVE-2021-34716","markdown":"https://insights.sbomify.com/CVE-2021-34716/index.md","name":"CVE-2021-34716","record":{"aliases":["GHSA-9mxr-mcvr-5xpm"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco Expressway VCS","requires_auth":"high_privilege","summary":"Authenticated administrators can upload crafted software images to execute arbitrary code as root on Cisco Expressway and VCS devices.","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":6.7,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L","version":"3.1"},"cwes":[{"id":"CWE-755","name":"Improper Handling of Exceptional Conditions"},{"id":"CWE-460","name":"Improper Cleanup on Thrown Exception"}],"description":"A vulnerability in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to execute arbitrary code on the underlying operating system as the root user. This vulnerability is due to incorrect handling of certain crafted software images that are uploaded to the affected device. An attacker could exploit this vulnerability by authenticating to the system as an administrative user and then uploading specific crafted software images to the affected device. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system as the root user.","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 TelePresence Video Communication Server Remote Code Execution Vulnerability","id":"CVE-2021-34716","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"file_upload","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco IOS XR Software Arbitrary File Read and Write Vulnerability","id":"CVE-2021-34718"},"packages":[],"prev":{"headline":"Cisco Expressway Series and TelePresence Video Communication Server Image Verification Vulnerability","id":"CVE-2021-34715"},"products":["Cisco TelePresence Video Communication Server (VCS) Expressway"],"published":"2021-08-18","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":9,"headline":"Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities","id":"CVE-2022-20813","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"}],"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":"2024-11-07","vendors":["Cisco"]},"summary":"Authenticated administrators can upload crafted software images to execute arbitrary code as root on Cisco Expressway and VCS devices.","url":"https://insights.sbomify.com/CVE-2021-34716/"}