{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-34811 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-34811 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-34811 is a medium-severity server-side request forgery vulnerability in Synology Download Station, published on 18 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-34811 and fix it if it is affected.\n\nWhat it is: CVE-2021-34811 is a medium-severity server-side request forgery vulnerability in Synology Download Station, published on 18 Jun 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-2021-34811 in the wild and no public exploit code.\n\nAffected product: Synology Download Station. 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-2021-34811/ (Markdown: https://insights.sbomify.com/CVE-2021-34811/index.md)","id":"CVE-2021-34811","markdown":"https://insights.sbomify.com/CVE-2021-34811/index.md","name":"CVE-2021-34811","record":{"aliases":["GHSA-h4r4-pw7f-hp8j"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Synology Download Station","requires_auth":"low_privilege","summary":"Remote authenticated users can access intranet resources via SSRF in Synology Download Station, requiring an upgrade to mitigate.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"synology","cpe":[{"product":"download_station","vendor":"synology"}],"cvss":{"score":5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"Server-Side Request Forgery (SSRF) vulnerability in task management component in Synology Download Station before 3.8.16-3566 allows remote authenticated users to access intranet resources via unspecified vectors.","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":"Server-side request forgery in Download Station","id":"CVE-2021-34811","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"ssrf","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Hardcoded credentials in Synology Calendar","id":"CVE-2021-34812"},"packages":[],"prev":{"headline":"Privilege escalation in Download Station","id":"CVE-2021-34810"},"products":["Download Station"],"published":"2021-06-18","related":[{"cvss_score":9.9,"headline":"Command injection in Download Station","id":"CVE-2021-34809","kev_date_added":null,"published":"2021-06-18"},{"cvss_score":9.9,"headline":"Privilege escalation in Download Station","id":"CVE-2021-34810","kev_date_added":null,"published":"2021-06-18"},{"cvss_score":7.8,"headline":"File upload in Synology Download Station","id":"CVE-2017-11156","kev_date_added":null,"published":"2017-08-14"},{"cvss_score":7.7,"headline":"Server-side request forgery in Synology Download Station","id":"CVE-2021-33184","kev_date_added":null,"published":"2021-06-01"},{"cvss_score":6.5,"headline":"Server-side request forgery in Synology Download Station","id":"CVE-2017-11149","kev_date_added":null,"published":"2017-08-14"},{"cvss_score":4.3,"headline":"Cross-site scripting in n/a","id":"CVE-2015-6909","kev_date_added":null,"published":"2015-09-11"}],"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":["Synology"]},"summary":"Remote authenticated users can access intranet resources via SSRF in Synology Download Station, requiring an upgrade to mitigate.","url":"https://insights.sbomify.com/CVE-2021-34811/"}