{"answers":{"affected":"4 open source packages ship an affected version, including org.apache.dubbo:dubbo. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-36162 in the wild and no public exploit code.","fix":"Upgrade org.apache.dubbo:dubbo to a fixed version for your release line: 2.7.13 or 3.0.2.","what":"CVE-2021-36162 is a high-severity unsafe deserialization vulnerability in Apache Dubbo, published on 7 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-36162 and fix it if it is affected.\n\nWhat it is: CVE-2021-36162 is a high-severity unsafe deserialization vulnerability in Apache Dubbo, published on 7 Sep 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-36162 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.apache.dubbo:dubbo (Maven): affected all versions; fixed in 2.7.13\n- org.apache.dubbo:dubbo (Maven): affected all versions; fixed in 2.7.13\n- org.apache.dubbo:dubbo (Maven): affected from 3.0.0; fixed in 3.0.2\n- org.apache.dubbo:dubbo (Maven): affected from 3.0.0; fixed in 3.0.2\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-2021-36162/ (Markdown: https://insights.sbomify.com/CVE-2021-36162/index.md)","id":"CVE-2021-36162","markdown":"https://insights.sbomify.com/CVE-2021-36162/index.md","name":"CVE-2021-36162","record":{"aliases":["GHSA-r577-4hq7-73qh"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Java RPC framework","requires_auth":"low_privilege","summary":"An attacker with configuration center access can poison YAML rules to achieve remote code execution on Dubbo consumers via unsafe SnakeYAML deserialization.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"dubbo","vendor":"apache"}],"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":[],"description":"Apache Dubbo supports various rules to support configuration override or traffic routing (called routing in Dubbo). These rules are loaded into the configuration center (eg: Zookeeper, Nacos, ...) and retrieved by the customers when making a request in order to find the right endpoint. When parsing these YAML rules, Dubbo customers will use SnakeYAML library to load the rules which by default will enable calling arbitrary constructors. An attacker with access to the configuration center he will be able to poison the rule so when retrieved by the consumers, it will get RCE on all of them. This was fixed in Dubbo 2.7.13, 3.0.2","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":"Unprotected yaml deserialization cause RCE","id":"CVE-2021-36162","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"deserialization","year":"2021"},"n_packages":4,"n_references":1,"next":{"headline":"Unsafe deserialization in providers using the Hessian protocol","id":"CVE-2021-36163"},"packages":[{"ecosystem":"Maven","fixed":["2.7.13"],"introduced":["0"],"last_affected":[],"package":"org.apache.dubbo:dubbo","purl":null,"source":"GHSA-r577-4hq7-73qh"},{"ecosystem":"Maven","fixed":["2.7.13"],"introduced":["0"],"last_affected":[],"package":"org.apache.dubbo:dubbo","purl":"pkg:maven/org.apache.dubbo/dubbo","source":"GHSA-r577-4hq7-73qh"},{"ecosystem":"Maven","fixed":["3.0.2"],"introduced":["3.0.0"],"last_affected":[],"package":"org.apache.dubbo:dubbo","purl":null,"source":"GHSA-r577-4hq7-73qh"},{"ecosystem":"Maven","fixed":["3.0.2"],"introduced":["3.0.0"],"last_affected":[],"package":"org.apache.dubbo:dubbo","purl":"pkg:maven/org.apache.dubbo/dubbo","source":"GHSA-r577-4hq7-73qh"}],"prev":{"headline":"Unprotected input value toString cause RCE","id":"CVE-2021-36161"},"products":["Apache Dubbo"],"published":"2021-09-07","related":[{"cvss_score":9.8,"headline":"Bypass serialize checks in Apache Dubbo","id":"CVE-2023-29234","kev_date_added":null,"published":"2023-12-15"},{"cvss_score":9.8,"headline":"Apache Dubbo: Bypass deny serialize list check in Apache Dubbo","id":"CVE-2023-46279","kev_date_added":null,"published":"2023-12-15"},{"cvss_score":9.8,"headline":"Regular expression Denial of Service in MooTools","id":"CVE-2021-32824","kev_date_added":null,"published":"2023-01-03"},{"cvss_score":9.8,"headline":"Apache Dubbo Hession Deserialization Vulnerability Gadgets Bypass","id":"CVE-2022-39198","kev_date_added":null,"published":"2022-10-18"},{"cvss_score":9.8,"headline":"Dubbo Hessian cause RCE when parse error","id":"CVE-2021-43297","kev_date_added":null,"published":"2022-01-10"},{"cvss_score":9.8,"headline":"Unprotected input value toString cause RCE","id":"CVE-2021-36161","kev_date_added":null,"published":"2021-09-09"},{"cvss_score":9.8,"headline":"Bypass deserialization checks in Apache Dubbo","id":"CVE-2021-37579","kev_date_added":null,"published":"2021-09-09"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["Apache Software Foundation"]},"summary":"An attacker with configuration center access can poison YAML rules to achieve remote code execution on Dubbo consumers via unsafe SnakeYAML deserialization.","url":"https://insights.sbomify.com/CVE-2021-36162/"}