{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-20473 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20473 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20473 is a medium-severity authentication bypass vulnerability in Ibm Sterling File Gateway, published on 7 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-20473 and fix it if it is affected.\n\nWhat it is: CVE-2021-20473 is a medium-severity authentication bypass vulnerability in Ibm Sterling File Gateway, published on 7 Oct 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-2021-20473 in the wild and no public exploit code.\n\nAffected product: Ibm Sterling File Gateway. 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-2021-20473/ (Markdown: https://insights.sbomify.com/CVE-2021-20473/index.md)","id":"CVE-2021-20473","markdown":"https://insights.sbomify.com/CVE-2021-20473/index.md","name":"CVE-2021-20473","record":{"aliases":["GHSA-332g-g9j2-2jvj"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"IBM Sterling File Gateway","requires_auth":"low_privilege","summary":"Failure to invalidate sessions on logout allows authenticated users to impersonate others, requiring a patch for IBM Sterling File Gateway.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"ibm","cpe":[{"product":"sterling_file_gateway","vendor":"ibm"}],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:3.0/I:L/AC:L/PR:L/AV:N/UI:N/A:L/C:L/S:U/RL:O/E:U/RC:C","version":"3.0"},"cwes":[{"id":"CWE-613","name":"DEPRECATED: Insufficient Session Expiration"}],"description":"IBM Sterling File Gateway User Interface 2.2.0.0 through 6.1.1.0 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 196944.","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":"Auth bypass in Sterling File Gateway","id":"CVE-2021-20473","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"ibm:sterling_file_gateway","products":["ibm:sterling_file_gateway"],"type":"auth_bypass","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Missing authorization in Guardium Data Encryption","id":"CVE-2021-20474"},"packages":[],"prev":{"headline":"Weak cryptography in Cognos Analytics","id":"CVE-2021-20470"},"products":["Sterling File Gateway"],"published":"2021-10-07","related":[{"cvss_score":6.5,"headline":"Missing authorization in Sterling File Gateway","id":"CVE-2020-4259","kev_date_added":null,"published":"2020-05-14"},{"cvss_score":6.5,"headline":"Missing authorization in Sterling File Gateway","id":"CVE-2017-1550","kev_date_added":null,"published":"2017-12-11"},{"cvss_score":6.5,"headline":"Information disclosure in Sterling File Gateway","id":"CVE-2017-1487","kev_date_added":null,"published":"2017-12-07"},{"cvss_score":6.4,"headline":"IBM Sterling File Gateway cross-site scripting","id":"CVE-2023-52292","kev_date_added":null,"published":"2025-01-27"},{"cvss_score":6.3,"headline":"SQL injection in Sterling File Gateway","id":"CVE-2020-4647","kev_date_added":null,"published":"2020-11-16"},{"cvss_score":6.1,"headline":"Cross-site scripting in Sterling File Gateway","id":"CVE-2020-4658","kev_date_added":null,"published":"2020-12-16"}],"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":["IBM"]},"summary":"Failure to invalidate sessions on logout allows authenticated users to impersonate others, requiring a patch for IBM Sterling File Gateway.","url":"https://insights.sbomify.com/CVE-2021-20473/"}