{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-21488 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-21488 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-21488 is a medium-severity unsafe deserialization vulnerability in SAP NetWeaver Knowledge Management, published on 9 Mar 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-21488 and fix it if it is affected.\n\nWhat it is: CVE-2021-21488 is a medium-severity unsafe deserialization vulnerability in SAP NetWeaver Knowledge Management, published on 9 Mar 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-2021-21488 in the wild and no public exploit code.\n\nAffected product: SAP NetWeaver Knowledge Management. 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-2021-21488/ (Markdown: https://insights.sbomify.com/CVE-2021-21488/index.md)","id":"CVE-2021-21488","markdown":"https://insights.sbomify.com/CVE-2021-21488/index.md","name":"CVE-2021-21488","record":{"aliases":["GHSA-g2rh-3q72-5cq4"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"SAP NetWeaver KM","requires_auth":"low_privilege","summary":"Remote attackers with basic privileges can execute arbitrary code via insecure deserialization in SAP NetWeaver Knowledge Management, impacting availability.","user_interaction":"not_required","vuln_class":"deserialization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"sap","cpe":[{"product":"netweaver_knowledge_management","vendor":"sap"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-502","name":"Deserialization of Untrusted Data"}],"description":"Knowledge Management versions 7.01, 7.02, 7.30, 7.31, 7.40, 7.50 allows a remote attacker with basic privileges to deserialize user-controlled data without verification, leading to insecure deserialization which triggers the attacker’s code, therefore impacting Availability.","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":"Deserialization in SAP NetWeaver Knowledge Management","id":"CVE-2021-21488","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"deserialization","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Cross-site scripting in SAP NetWeaver Enterprise Portal","id":"CVE-2021-21489"},"packages":[],"prev":{"headline":"Missing authorization in SAP Payment Engine","id":"CVE-2021-21487"},"products":["SAP NetWeaver Knowledge Management"],"published":"2021-03-09","related":[{"cvss_score":9,"headline":"Cross-site scripting in SAP NetWeaver (Knowledge Management)","id":"CVE-2020-6284","kev_date_added":null,"published":"2020-08-12"},{"cvss_score":7.3,"headline":"File upload in SAP NetWeaver (Knowledge Management)","id":"CVE-2020-6293","kev_date_added":null,"published":"2020-08-12"},{"cvss_score":6.1,"headline":"Open redirect in SAP NetWeaver (Knowledge Management)","id":"CVE-2021-33707","kev_date_added":null,"published":"2021-08-10"},{"cvss_score":6.1,"headline":"Cross-site scripting in SAP NetWeaver (Knowledge Management ICE Service)","id":"CVE-2020-6193","kev_date_added":null,"published":"2020-02-12"},{"cvss_score":5.4,"headline":"Cross-site scripting in SAP NetWeaver (Knowledge Management)","id":"CVE-2020-6326","kev_date_added":null,"published":"2020-09-09"}],"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":"2024-08-03","vendors":["SAP SE"]},"summary":"Remote attackers with basic privileges can execute arbitrary code via insecure deserialization in SAP NetWeaver Knowledge Management, impacting availability.","url":"https://insights.sbomify.com/CVE-2021-21488/"}