{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-28798 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-28798 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-28798 is a high-severity path traversal vulnerability in Qnap Qts, published on 21 May 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-28798 and fix it if it is affected.\n\nWhat it is: CVE-2021-28798 is a high-severity path traversal vulnerability in Qnap Qts, published on 21 May 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-2021-28798 in the wild and no public exploit code.\n\nAffected product: Qnap Qts. 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-2021-28798/ (Markdown: https://insights.sbomify.com/CVE-2021-28798/index.md)","id":"CVE-2021-28798","markdown":"https://insights.sbomify.com/CVE-2021-28798/index.md","name":"CVE-2021-28798","record":{"aliases":["GHSA-hc4v-wrjp-6qpg"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"QNAP NAS firmware","requires_auth":"low_privilege","summary":"Attackers can exploit a relative path traversal flaw in QNAP NAS firmware to modify system files, compromising system integrity.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"qnap","cpe":[{"product":"qts","vendor":"qnap"},{"product":"quts_hero","vendor":"qnap"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"},{"id":"CWE-284","name":"Improper Access Control"},{"id":"CWE-23","name":"Relative Path Traversal"}],"description":"A relative path traversal vulnerability has been reported to affect QNAP NAS running QTS and QuTS hero. If exploited, this vulnerability allows attackers to modify files that impact system integrity. QNAP have already fixed this vulnerability in the following versions: QTS 4.5.2.1630 Build 20210406 and later QTS 4.3.6.1663 Build 20210504 and later QTS 4.3.3.1624 Build 20210416 and later QuTS hero h4.5.2.1638 Build 20210414 and later QNAP NAS running QTS 4.5.3 are not affected.","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":"Relative Path Traversal Vulnerability in QTS and QuTS hero","id":"CVE-2021-28798","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"qnap:qts","products":["qnap:qts","qnap:quts_hero"],"type":"path_traversal","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"QNAP NAS Improper Authorization","id":"CVE-2021-28799"},"packages":[],"prev":{"headline":"Stack Buffer Overflow in Surveillance Station","id":"CVE-2021-28797"},"products":["QTS","QuTS hero"],"published":"2021-05-21","related":[{"cvss_score":9.8,"headline":"QNAP Network-Attached Storage (NAS) Command Injection","id":"CVE-2020-2509","kev_date_added":"2022-04-11","published":"2021-04-17"},{"cvss_score":9.8,"headline":"QNAP NAS File Station Command Injection","id":"CVE-2018-19949","kev_date_added":"2022-05-24","published":"2020-10-28"},{"cvss_score":9.8,"headline":"QNAP QTS Improper Input Validation","id":"CVE-2019-7193","kev_date_added":"2022-06-08","published":"2019-12-05"},{"cvss_score":8,"headline":"QNAP NAS File Station Cross-Site Scripting","id":"CVE-2018-19943","kev_date_added":"2022-05-24","published":"2020-10-28"},{"cvss_score":6.1,"headline":"QNAP NAS File Station Cross-Site Scripting","id":"CVE-2018-19953","kev_date_added":"2022-05-24","published":"2020-10-28"},{"cvss_score":10,"headline":"QTS, QuTS hero, QuTScloud","id":"CVE-2024-32766","kev_date_added":null,"published":"2024-04-26"},{"cvss_score":10,"headline":"Command injection in n/a","id":"CVE-2017-7876","kev_date_added":null,"published":"2017-06-15"}],"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":["QNAP Systems Inc."]},"summary":"Attackers can exploit a relative path traversal flaw in QNAP NAS firmware to modify system files, compromising system integrity.","url":"https://insights.sbomify.com/CVE-2021-28798/"}