{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-45841 exists.","fix":"No fix has been published for CVE-2021-45841 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-45841 is a high-severity authentication bypass vulnerability in n/a, published on 25 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-45841 and fix it if it is affected.\n\nWhat it is: CVE-2021-45841 is a high-severity authentication bypass vulnerability in n/a, published on 25 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-45841 exists.\n\nAffected product: n/a. 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-2021-45841/ (Markdown: https://insights.sbomify.com/CVE-2021-45841/index.md)","id":"CVE-2021-45841","markdown":"https://insights.sbomify.com/CVE-2021-45841/index.md","name":"CVE-2021-45841","record":{"aliases":["GHSA-gmc4-3pqc-993q"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"NAS device","requires_auth":"none","summary":"Attackers can bypass authentication on Terramaster NAS devices by forging session cookies using known MAC addresses and password hashes, allowing unauthorized access.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"tos","vendor":"terra-master"}],"cvss":{"score":8.1,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-798","name":"Use of Hard-coded Credentials"},{"id":"CWE-287","name":"Improper Authentication"}],"description":"In Terramaster F4-210, F2-210 TOS 4.2.X (4.2.15-2107141517), an attacker can self-sign session cookies by knowing the target's MAC address and the user's password hash. Guest users (disabled by default) can be abused using a null/empty hash and allow an unauthenticated attacker to login as guest.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2021-12-24","github_poc":0,"max_poc_stars":null,"metasploit":1,"nuclei":0,"refs":[{"date":"2021-12-24","kind":"metasploit","ref":"exploit/linux/http/terramaster_unauth_rce_cve_2021_45837","stars":null,"title":"TerraMaster TOS 4.2.15 or lower - RCE chain from unauthenticated to root via session crafting."}],"tier":"weaponised"},"has_fix":null,"headline":"Auth bypass in n/a","id":"CVE-2021-45841","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Information disclosure in n/a","id":"CVE-2021-45842"},"packages":[],"prev":{"headline":"Command injection in n/a","id":"CVE-2021-45840"},"products":["n/a"],"published":"2022-04-25","related":[{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2021-45837","kev_date_added":null,"published":"2022-04-25"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2021-45840","kev_date_added":null,"published":"2022-04-25"},{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2020-15568","kev_date_added":null,"published":"2021-01-30"},{"cvss_score":9.8,"headline":"Path traversal in n/a","id":"CVE-2020-28187","kev_date_added":null,"published":"2020-12-24"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2020-28188","kev_date_added":null,"published":"2020-12-24"},{"cvss_score":8.8,"headline":"Command injection in n/a","id":"CVE-2021-45836","kev_date_added":null,"published":"2022-04-25"}],"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":"attribution","licence":"BSD-3-Clause","name":"Metasploit"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can bypass authentication on Terramaster NAS devices by forging session cookies using known MAC addresses and password hashes, allowing unauthorized access.","url":"https://insights.sbomify.com/CVE-2021-45841/"}