{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-8290 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-8290 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-8290 is a high-severity vulnerability in Backblaze, published on 27 Dec 2020. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-8290 and fix it if it is affected.\n\nWhat it is: CVE-2020-8290 is a high-severity vulnerability in Backblaze, published on 27 Dec 2020. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-8290 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-2020-8290/ (Markdown: https://insights.sbomify.com/CVE-2020-8290/index.md)","id":"CVE-2020-8290","markdown":"https://insights.sbomify.com/CVE-2020-8290/index.md","name":"CVE-2020-8290","record":{"aliases":["GHSA-mfc8-4qmg-g3x6"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["privilege_escalation","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Backblaze backup client","requires_auth":"low_privilege","summary":"Local attackers can escalate privileges by exploiting improper permission handling in the Backblaze client update mechanism to execute rogue binaries.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"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:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-269","name":"Improper Privilege Management"}],"description":"Backblaze for Windows and Backblaze for macOS before 7.0.0.439 suffer from improper privilege management in `bztransmit` helper due to lack of permission handling and validation before creation of client update directories allowing for local escalation of privilege via rogue client update binary.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2020-09-09","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2020-09-09T14:42:36Z","kind":"github_poc","ref":"https://github.com/geffner/CVE-2020-8290","stars":0,"title":"CVE-2020-8290 – Elevation of Privilege in Backblaze"}],"tier":"poc_unverified"},"has_fix":null,"headline":"Privilege escalation in Backblaze","id":"CVE-2020-8290","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"privilege_escalation","year":"2020"},"n_packages":0,"n_references":3,"next":{"headline":"Cross-site scripting in Rocket.Chat server","id":"CVE-2020-8291"},"packages":[],"prev":{"headline":"Security feature bypass in Backblaze","id":"CVE-2020-8289"},"products":["Backblaze"],"published":"2020-12-27","related":[{"cvss_score":7.8,"headline":"Security feature bypass in Backblaze","id":"CVE-2020-8289","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":"Local attackers can escalate privileges by exploiting improper permission handling in the Backblaze client update mechanism to execute rogue binaries.","url":"https://insights.sbomify.com/CVE-2020-8290/"}