{"answers":{"affected":"2 open source packages ship an affected version, including org.opennms.core:org.opennms.core.daemon. It affects 2 products.","exploited":"There is no known exploitation of CVE-2020-12760 in the wild and no public exploit code.","fix":"Upgrade org.opennms.core:org.opennms.core.daemon to 26.0.1 or later.","what":"CVE-2020-12760 is a high-severity unsafe deserialization vulnerability in n/a, published on 11 May 2020. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-12760 and fix it if it is affected.\n\nWhat it is: CVE-2020-12760 is a high-severity unsafe deserialization vulnerability in n/a, published on 11 May 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-2020-12760 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.opennms.core:org.opennms.core.daemon (Maven): affected all versions; fixed in 26.0.1\n- org.opennms.core:org.opennms.core.daemon (Maven): affected all versions; fixed in 26.0.1\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-2020-12760/ (Markdown: https://insights.sbomify.com/CVE-2020-12760/index.md)","id":"CVE-2020-12760","markdown":"https://insights.sbomify.com/CVE-2020-12760/index.md","name":"CVE-2020-12760","record":{"aliases":["GHSA-853f-x27w-8r74"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenNMS network monitoring","requires_auth":"low_privilege","summary":"Authenticated users can achieve remote code execution via unsafe Java object deserialization in the ActiveMQ channel configuration.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"opennms_horizon","vendor":"opennms"},{"product":"opennms_meridian","vendor":"opennms"}],"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-502","name":"Deserialization of Untrusted Data"}],"description":"An issue was discovered in OpenNMS Horizon before 26.0.1, and Meridian before 2018.1.19 and 2019 before 2019.1.7. The ActiveMQ channel configuration allowed for arbitrary deserialization of Java objects (aka ActiveMQ Minion payload deserialization), leading to remote code execution for any authenticated channel user regardless of its assigned permissions.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"OpenNMS Horizon RCE via Unsafe Deserialization","id":"CVE-2020-12760","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"deserialization","year":"2020"},"n_packages":2,"n_references":5,"next":{"headline":"Integer overflow in n/a","id":"CVE-2020-12761"},"packages":[{"ecosystem":"Maven","fixed":["26.0.1"],"introduced":["0"],"last_affected":[],"package":"org.opennms.core:org.opennms.core.daemon","purl":null,"source":"GHSA-853f-x27w-8r74"},{"ecosystem":"Maven","fixed":["26.0.1"],"introduced":["0"],"last_affected":[],"package":"org.opennms.core:org.opennms.core.daemon","purl":"pkg:maven/org.opennms.core/org.opennms.core.daemon","source":"GHSA-853f-x27w-8r74"}],"prev":{"headline":"Cross-site scripting in n/a","id":"CVE-2020-12759"},"products":["n/a"],"published":"2020-05-11","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"2024-08-04","vendors":["n/a"]},"summary":"Authenticated users can achieve remote code execution via unsafe Java object deserialization in the ActiveMQ channel configuration.","url":"https://insights.sbomify.com/CVE-2020-12760/"}