{"answers":{"affected":"It affects 25 products.","exploited":"There is no known exploitation of CVE-2024-20509 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2024-20509 yet. Limit exposure of the affected software until one is available.","what":"CVE-2024-20509 is a medium-severity vulnerability in Cisco Meraki MX Firmware, published on 2 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-20509 and fix it if it is affected.\n\nWhat it is: CVE-2024-20509 is a medium-severity vulnerability in Cisco Meraki MX Firmware, published on 2 Oct 2024. 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-2024-20509 in the wild and no public exploit code.\n\nAffected product: Cisco Meraki MX Firmware. 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-2024-20509/ (Markdown: https://insights.sbomify.com/CVE-2024-20509/index.md)","id":"CVE-2024-20509","markdown":"https://insights.sbomify.com/CVE-2024-20509/index.md","name":"CVE-2024-20509","record":{"aliases":["GHSA-frxm-f6qg-2mch"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["account_takeover","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Meraki MX Firmware","requires_auth":"none","summary":"An unauthenticated remote attacker can hijack AnyConnect VPN sessions or cause denial of service by exploiting weak entropy and a race condition in the authentication process.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"meraki_mx100_firmware","vendor":"cisco"},{"product":"meraki_mx105_firmware","vendor":"cisco"},{"product":"meraki_mx250_firmware","vendor":"cisco"},{"product":"meraki_mx400_firmware","vendor":"cisco"},{"product":"meraki_mx450_firmware","vendor":"cisco"},{"product":"meraki_mx600_firmware","vendor":"cisco"},{"product":"meraki_mx64_firmware","vendor":"cisco"},{"product":"meraki_mx64w_firmware","vendor":"cisco"},{"product":"meraki_mx65_firmware","vendor":"cisco"},{"product":"meraki_mx65w_firmware","vendor":"cisco"},{"product":"meraki_mx67_firmware","vendor":"cisco"},{"product":"meraki_mx67c_firmware","vendor":"cisco"},{"product":"meraki_mx67w_firmware","vendor":"cisco"},{"product":"meraki_mx68_firmware","vendor":"cisco"},{"product":"meraki_mx68cw_firmware","vendor":"cisco"},{"product":"meraki_mx68w_firmware","vendor":"cisco"},{"product":"meraki_mx75_firmware","vendor":"cisco"},{"product":"meraki_mx84_firmware","vendor":"cisco"},{"product":"meraki_mx85_firmware","vendor":"cisco"},{"product":"meraki_mx95_firmware","vendor":"cisco"},{"product":"meraki_vmx_firmware","vendor":"cisco"},{"product":"meraki_z3_firmware","vendor":"cisco"},{"product":"meraki_z3c_firmware","vendor":"cisco"},{"product":"meraki_z4_firmware","vendor":"cisco"},{"product":"meraki_z4c_firmware","vendor":"cisco"}],"cvss":{"score":5.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"A vulnerability in the Cisco AnyConnect VPN server of Cisco Meraki MX and Cisco Meraki Z Series Teleworker Gateway devices could allow an unauthenticated, remote attacker to hijack an AnyConnect VPN session or cause a denial of service (DoS) condition for individual users of the AnyConnect VPN service on an affected device.\r\n\r This vulnerability is due to weak entropy for handlers that are used during the VPN authentication process as well as a race condition that exists in the same process. An attacker could exploit this vulnerability by correctly guessing an authentication handler and then sending crafted HTTPS requests to an affected device. A successful exploit could allow the attacker to take over the AnyConnect VPN session from a target user or prevent the target user from establishing an AnyConnect VPN session with the 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":"Race condition in Cisco Meraki MX Firmware","id":"CVE-2024-20509","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"race_condition","year":"2024"},"n_packages":0,"n_references":1,"next":{"headline":"Auth bypass in Cisco IOS XE Software","id":"CVE-2024-20510"},"packages":[],"prev":{"headline":"Denial of service in Cisco UTD SNORT IPS Engine Software","id":"CVE-2024-20508"},"products":["Cisco Meraki MX Firmware"],"published":"2024-10-02","related":[{"cvss_score":8.6,"headline":"Denial of service in Cisco Meraki MX Firmware","id":"CVE-2024-20498","kev_date_added":null,"published":"2024-10-02"},{"cvss_score":8.6,"headline":"Denial of service in Cisco Meraki MX Firmware","id":"CVE-2024-20499","kev_date_added":null,"published":"2024-10-02"},{"cvss_score":8.6,"headline":"Denial of service in Cisco Meraki MX Firmware","id":"CVE-2024-20501","kev_date_added":null,"published":"2024-10-02"},{"cvss_score":8.6,"headline":"Cisco Meraki MX and Z3 Teleworker Gateway VPN Denial of Service Vulnerability","id":"CVE-2022-20933","kev_date_added":null,"published":"2022-10-26"},{"cvss_score":5.8,"headline":"Denial of service in Cisco Meraki MX Firmware","id":"CVE-2024-20500","kev_date_added":null,"published":"2024-10-02"},{"cvss_score":5.8,"headline":"Denial of service in Cisco Meraki MX Firmware","id":"CVE-2024-20502","kev_date_added":null,"published":"2024-10-02"}],"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":"2025-06-04","vendors":["Cisco"]},"summary":"An unauthenticated remote attacker can hijack AnyConnect VPN sessions or cause denial of service by exploiting weak entropy and a race condition in the authentication process.","url":"https://insights.sbomify.com/CVE-2024-20509/"}