{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-34995 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-34995 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-34995 is a high-severity vulnerability in Commvault CommCell, published on 13 Jan 2022. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-34995 and fix it if it is affected.\n\nWhat it is: CVE-2021-34995 is a high-severity vulnerability in Commvault CommCell, published on 13 Jan 2022. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-34995 in the wild and no public exploit code.\n\nAffected product: Commvault CommCell. 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-2021-34995/ (Markdown: https://insights.sbomify.com/CVE-2021-34995/index.md)","id":"CVE-2021-34995","markdown":"https://insights.sbomify.com/CVE-2021-34995/index.md","name":"CVE-2021-34995","record":{"aliases":["GHSA-5vg2-m4qf-m5p5"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Commvault CommCell","requires_auth":"low_privilege","summary":"Remote attackers can bypass authentication to upload arbitrary files and execute code on Commvault CommCell servers.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"zdi","cpe":[{"product":"commcell","vendor":"commvault"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"}],"description":"This vulnerability allows remote attackers to execute arbitrary code on affected installations of Commvault CommCell 11.22.22. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the DownloadCenterUploadHandler class. The issue results from the lack of proper validation of user-supplied data, which can allow the upload of arbitrary files. An attacker can leverage this vulnerability to execute code in the context of NETWORK SERVICE. Was ZDI-CAN-13756.","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":"File upload in CommCell","id":"CVE-2021-34995","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"file_upload","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Command injection in CommCell","id":"CVE-2021-34996"},"packages":[],"prev":{"headline":"Code injection in CommCell","id":"CVE-2021-34994"},"products":["CommCell"],"published":"2022-01-13","related":[{"cvss_score":9.8,"headline":"Auth bypass in CommCell","id":"CVE-2021-34993","kev_date_added":null,"published":"2022-01-13"},{"cvss_score":8.8,"headline":"Code injection in CommCell","id":"CVE-2021-34994","kev_date_added":null,"published":"2022-01-13"},{"cvss_score":8.8,"headline":"Command injection in CommCell","id":"CVE-2021-34996","kev_date_added":null,"published":"2022-01-13"},{"cvss_score":8.8,"headline":"File upload in CommCell","id":"CVE-2021-34997","kev_date_added":null,"published":"2022-01-13"},{"cvss_score":7.5,"headline":"Path traversal in n/a","id":"CVE-2020-25780","kev_date_added":null,"published":"2020-10-29"}],"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":"2024-08-04","vendors":["Commvault"]},"summary":"Remote attackers can bypass authentication to upload arbitrary files and execute code on Commvault CommCell servers.","url":"https://insights.sbomify.com/CVE-2021-34995/"}