{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2020-5423 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-5423 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-5423 is a high-severity denial of service vulnerability in Cloud Foundry CAPI, published on 2 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-5423 and fix it if it is affected.\n\nWhat it is: CVE-2020-5423 is a high-severity denial of service vulnerability in Cloud Foundry CAPI, published on 2 Dec 2020. 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-2020-5423 in the wild and no public exploit code.\n\nAffected product: Cloud Foundry CAPI. 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-2020-5423/ (Markdown: https://insights.sbomify.com/CVE-2020-5423/index.md)","id":"CVE-2020-5423","markdown":"https://insights.sbomify.com/CVE-2020-5423/index.md","name":"CVE-2020-5423","record":{"aliases":["GHSA-jj4c-53qh-fp5v"],"analysis":{"component_type":"cloud_service","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Cloud Foundry CAPI","requires_auth":"none","summary":"Unauthenticated attackers can cause denial of service in Cloud Foundry CAPI by sending crafted YAML files that exhaust CPU and RAM resources.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"pivotal","cpe":[{"product":"capi-release","vendor":"cloudfoundry"},{"product":"cf-deployment","vendor":"cloudfoundry"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"CAPI (Cloud Controller) versions prior to 1.101.0 are vulnerable to a denial-of-service attack in which an unauthenticated malicious attacker can send specially-crafted YAML files to certain endpoints, causing the YAML parser to consume excessive CPU and RAM.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Cloud Controller is vulnerable to denial of service via YAML parsing","id":"CVE-2020-5423","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"DO NOT USE THIS CANDIDATE NUMBER.","id":"CVE-2020-5424"},"packages":[],"prev":{"headline":"UAA password may appear in BOSH System Metrics Server process arguments","id":"CVE-2020-5422"},"products":["CAPI","CF Deployment"],"published":"2020-12-02","related":[{"cvss_score":8.8,"headline":"Auth bypass in Cloud Controller","id":"CVE-2018-1195","kev_date_added":null,"published":"2018-03-19"},{"cvss_score":8.5,"headline":"Cloud Controller may allow developers to claim sensitive routes","id":"CVE-2020-5417","kev_date_added":null,"published":"2020-08-21"},{"cvss_score":8.1,"headline":"Missing authorization in Cloud Controller API","id":"CVE-2023-20881","kev_date_added":null,"published":"2023-05-19"},{"cvss_score":8.1,"headline":"Path traversal in n/a","id":"CVE-2018-1266","kev_date_added":null,"published":"2018-03-27"},{"cvss_score":8,"headline":"Cloud Controller logs environment variables from app manifests","id":"CVE-2020-5400","kev_date_added":null,"published":"2020-02-27"},{"cvss_score":7.8,"headline":"Path traversal in Cloud Controller API CAPI-release versions prior to v1.35.0 and cf-release versions prior to v268","id":"CVE-2017-8033","kev_date_added":null,"published":"2017-07-25"},{"cvss_score":7.8,"headline":"Code injection in Cloud Controller API CAPI-release version 1.33.0 only","id":"CVE-2017-8036","kev_date_added":null,"published":"2017-07-24"}],"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":"2024-09-17","vendors":["Cloud Foundry"]},"summary":"Unauthenticated attackers can cause denial of service in Cloud Foundry CAPI by sending crafted YAML files that exhaust CPU and RAM resources.","url":"https://insights.sbomify.com/CVE-2020-5423/"}