{"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-2021-36163 in the wild and no public exploit code.","fix":"Upgrade org.apache.dubbo:dubbo to a fixed version for your release line: 2.6.10.1 or 2.7.13.","what":"CVE-2021-36163 is a critical unsafe deserialization vulnerability in Apache Dubbo, published on 7 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-36163 and fix it if it is affected.\n\nWhat it is: CVE-2021-36163 is a critical unsafe deserialization vulnerability in Apache Dubbo, published on 7 Sep 2021. 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-2021-36163 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 2.6.10.1\n- org.apache.dubbo:dubbo (Maven): affected all versions; fixed in 2.6.10.1\n- org.apache.dubbo:dubbo (Maven): affected from 2.7.0; fixed in 2.7.13\n- org.apache.dubbo:dubbo (Maven): affected from 2.7.0; fixed in 2.7.13\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-2021-36163/ (Markdown: https://insights.sbomify.com/CVE-2021-36163/index.md)","id":"CVE-2021-36163","markdown":"https://insights.sbomify.com/CVE-2021-36163/index.md","name":"CVE-2021-36163","record":{"aliases":["GHSA-cpx9-4rwv-486v"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Java RPC framework","requires_auth":"none","summary":"Attackers can achieve remote code execution via unsafe Hessian deserialization in Apache Dubbo when the Hessian protocol is enabled.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"apache","cpe":[{"product":"dubbo","vendor":"apache"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"In Apache Dubbo, users may choose to use the Hessian protocol. The Hessian protocol is implemented on top of HTTP and passes the body of a POST request directly to a HessianSkeleton: New HessianSkeleton are created without any configuration of the serialization factory and therefore without applying the dubbo properties for applying allowed or blocked type lists. In addition, the generic service is always exposed and therefore attackers do not need to figure out a valid service/method name pair. This is fixed in 2.7.13, 2.6.10.1","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":"Unsafe deserialization in providers using the Hessian protocol","id":"CVE-2021-36163","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"deserialization","year":"2021"},"n_packages":4,"n_references":1,"next":{"headline":"Information disclosure in n/a","id":"CVE-2021-36165"},"packages":[{"ecosystem":"Maven","fixed":["2.6.10.1"],"introduced":["0"],"last_affected":[],"package":"org.apache.dubbo:dubbo","purl":null,"source":"GHSA-cpx9-4rwv-486v"},{"ecosystem":"Maven","fixed":["2.6.10.1"],"introduced":["0"],"last_affected":[],"package":"org.apache.dubbo:dubbo","purl":"pkg:maven/org.apache.dubbo/dubbo","source":"GHSA-cpx9-4rwv-486v"},{"ecosystem":"Maven","fixed":["2.7.13"],"introduced":["2.7.0"],"last_affected":[],"package":"org.apache.dubbo:dubbo","purl":null,"source":"GHSA-cpx9-4rwv-486v"},{"ecosystem":"Maven","fixed":["2.7.13"],"introduced":["2.7.0"],"last_affected":[],"package":"org.apache.dubbo:dubbo","purl":"pkg:maven/org.apache.dubbo/dubbo","source":"GHSA-cpx9-4rwv-486v"}],"prev":{"headline":"Unprotected yaml deserialization cause RCE","id":"CVE-2021-36162"},"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":"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":["Apache Software Foundation"]},"summary":"Attackers can achieve remote code execution via unsafe Hessian deserialization in Apache Dubbo when the Hessian protocol is enabled.","url":"https://insights.sbomify.com/CVE-2021-36163/"}