{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2020-5396 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-5396 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-5396 is a high-severity vulnerability in VMware GemFire, published on 31 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-5396 and fix it if it is affected.\n\nWhat it is: CVE-2020-5396 is a high-severity vulnerability in VMware GemFire, published on 31 Jul 2020. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-5396 in the wild and no public exploit code.\n\nAffected product: VMware GemFire. 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-2020-5396/ (Markdown: https://insights.sbomify.com/CVE-2020-5396/index.md)","id":"CVE-2020-5396","markdown":"https://insights.sbomify.com/CVE-2020-5396/index.md","name":"CVE-2020-5396","record":{"aliases":["GHSA-3g3v-fjwj-v857"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"VMware GemFire","requires_auth":"low_privilege","summary":"A malicious user can achieve remote code execution via JMX MLet mbean creation when GemFire is deployed without a SecurityManager.","user_interaction":"not_required","vuln_class":"misconfiguration"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"pivotal","cpe":[{"product":"gemfire","vendor":"vmware"},{"product":"tanzu_gemfire_for_virtual_machines","vendor":"vmware"}],"cvss":{"score":8.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"},{"id":"CWE-284","name":"Improper Access Control"}],"description":"VMware GemFire versions prior to 9.10.0, 9.9.2, 9.8.7, and 9.7.6, and VMware Tanzu GemFire for VMs versions prior to 1.11.1 and 1.10.2, when deployed without a SecurityManager, contain a JMX service available which contains an insecure default configuration. This allows a malicious user to create an MLet mbean leading to remote code execution.","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":"JMX Insecure Default Configuration in GemFire","id":"CVE-2020-5396","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"misconfiguration","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"CSRF Attack via CORS Preflight Requests with Spring MVC or Spring WebFlux","id":"CVE-2020-5397"},"packages":[],"prev":{"headline":"Use after free in n/a","id":"CVE-2020-5395"},"products":["VMware GemFire","VMware Tanzu GemFire for VMs"],"published":"2020-07-31","related":[{"cvss_score":9,"headline":"JMX Credential Deserialization in GemFire","id":"CVE-2019-11286","kev_date_added":null,"published":"2020-07-31"}],"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":"2024-09-16","vendors":["VMware Tanzu"]},"summary":"A malicious user can achieve remote code execution via JMX MLet mbean creation when GemFire is deployed without a SecurityManager.","url":"https://insights.sbomify.com/CVE-2020-5396/"}