{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-8289 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-8289 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-8289 is a high-severity vulnerability in Backblaze, published on 27 Dec 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-8289 and fix it if it is affected.\n\nWhat it is: CVE-2020-8289 is a high-severity vulnerability in Backblaze, published on 27 Dec 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2020-8289 in the wild and no public exploit code.\n\nAffected product: Backblaze. 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-2020-8289/ (Markdown: https://insights.sbomify.com/CVE-2020-8289/index.md)","id":"CVE-2020-8289","markdown":"https://insights.sbomify.com/CVE-2020-8289/index.md","name":"CVE-2020-8289","record":{"aliases":["GHSA-7f55-fqw6-8jjp"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Backblaze backup client","requires_auth":"none","summary":"Improper certificate validation in Backblaze clients allows remote code execution via the update mechanism due to hardcoded URL whitelists.","user_interaction":"required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"backblaze","vendor":"backblaze"}],"cvss":{"score":7.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"}],"description":"Backblaze for Windows before 7.0.1.433 and Backblaze for macOS before 7.0.1.434 suffer from improper certificate validation in `bztransmit` helper due to hardcoded whitelist of strings in URLs where validation is disabled leading to possible remote code execution via client update functionality.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2020-09-09","github_poc":1,"max_poc_stars":11,"metasploit":0,"nuclei":0,"refs":[{"date":"2020-09-09T14:39:16Z","kind":"github_poc","ref":"https://github.com/geffner/CVE-2020-8289","stars":11,"title":"CVE-2020-8289 – Remote Code Execution as SYSTEM/root via Backblaze"}],"tier":"poc_unverified"},"has_fix":null,"headline":"Security feature bypass in Backblaze","id":"CVE-2020-8289","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2020"},"n_packages":0,"n_references":6,"next":{"headline":"Privilege escalation in Backblaze","id":"CVE-2020-8290"},"packages":[],"prev":{"headline":"Cross-site scripting in Rocket.Chat server","id":"CVE-2020-8288"},"products":["Backblaze"],"published":"2020-12-27","related":[{"cvss_score":7.8,"headline":"Privilege escalation in Backblaze","id":"CVE-2020-8290","kev_date_added":null,"published":"2020-12-27"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Improper certificate validation in Backblaze clients allows remote code execution via the update mechanism due to hardcoded URL whitelists.","url":"https://insights.sbomify.com/CVE-2020-8289/"}