{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-20255 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-20255 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-20255 is a medium-severity denial of service vulnerability in Cisco Meeting Server, 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-2023-20255 and fix it if it is affected.\n\nWhat it is: CVE-2023-20255 is a medium-severity denial of service vulnerability in Cisco Meeting Server, 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-2023-20255 in the wild and no public exploit code.\n\nAffected product: Cisco Meeting Server. 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-2023-20255/ (Markdown: https://insights.sbomify.com/CVE-2023-20255/index.md)","id":"CVE-2023-20255","markdown":"https://insights.sbomify.com/CVE-2023-20255/index.md","name":"CVE-2023-20255","record":{"aliases":["GHSA-mfw4-g24x-w66h"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco Meeting Server","requires_auth":"none","summary":"Unauthenticated remote attackers can cause denial of service in Cisco Meeting Server by sending crafted HTTP packets to the Web Bridge API.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"meeting_server","vendor":"cisco"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"A vulnerability in an API of the Web Bridge feature of Cisco Meeting Server could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. This vulnerability is due to insufficient validation of HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP packets to an affected device. A successful exploit could allow the attacker to cause a partial availability condition, which could cause ongoing video calls to be dropped due to the invalid packets reaching the Web Bridge.","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 Meeting Server","id":"CVE-2023-20255","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Security feature bypass in Cisco Adaptive Security Appliance (ASA) Software","id":"CVE-2023-20256"},"packages":[],"prev":{"headline":"Missing authorization in Cisco SD-WAN vManage","id":"CVE-2023-20254"},"products":["Cisco Meeting Server"],"published":"2023-11-01","related":[{"cvss_score":9.8,"headline":"Memory corruption in Cisco Meeting Server before 2.0.3 and Acano Server before 1.9.5","id":"CVE-2016-6448","kev_date_added":null,"published":"2016-11-03"},{"cvss_score":9.1,"headline":"Misconfiguration in Cisco Meeting Server","id":"CVE-2017-12249","kev_date_added":null,"published":"2017-09-13"},{"cvss_score":9.1,"headline":"Auth bypass in Cisco Meeting Server (CMS) before 2.0.6 and Acano Server before 1.8.18 and 1.9.x before 1.9.6","id":"CVE-2016-6445","kev_date_added":null,"published":"2016-10-27"},{"cvss_score":8.8,"headline":"Cisco Meeting Server Cross-Site Request Forgery Vulnerability","id":"CVE-2018-0439","kev_date_added":null,"published":"2018-10-05"},{"cvss_score":8.8,"headline":"Cross-site request forgery in Cisco Meeting Server 1.8, 1.9, 2.0","id":"CVE-2016-6444","kev_date_added":null,"published":"2016-10-27"},{"cvss_score":8.1,"headline":"Misconfiguration in Cisco Meeting Server","id":"CVE-2018-0262","kev_date_added":null,"published":"2018-05-02"},{"cvss_score":8.1,"headline":"Information disclosure in Cisco Meeting Server","id":"CVE-2017-3837","kev_date_added":null,"published":"2017-02-22"}],"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 denial of service in Cisco Meeting Server by sending crafted HTTP packets to the Web Bridge API.","url":"https://insights.sbomify.com/CVE-2023-20255/"}