{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-34594 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-34594 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-34594 is a medium-severity path traversal vulnerability in Beckhoff Automation TwinCAT OPC UA Server, published on 4 Nov 2021. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-34594 and fix it if it is affected.\n\nWhat it is: CVE-2021-34594 is a medium-severity path traversal vulnerability in Beckhoff Automation TwinCAT OPC UA Server, published on 4 Nov 2021. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-34594 in the wild and no public exploit code.\n\nAffected product: Beckhoff Automation TwinCAT OPC UA Server. 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-2021-34594/ (Markdown: https://insights.sbomify.com/CVE-2021-34594/index.md)","id":"CVE-2021-34594","markdown":"https://insights.sbomify.com/CVE-2021-34594/index.md","name":"CVE-2021-34594","record":{"aliases":["GHSA-pjgx-r654-8vfq"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["data_modify","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"TwinCAT OPC UA Server","requires_auth":"high_privilege","summary":"Administrators can exploit relative path traversal to create or delete arbitrary files on the system via the TwinCAT OPC UA Server.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CERTVDE","cpe":[{"product":"tf6100_firmware","vendor":"beckhoff"},{"product":"ts6100_firmware","vendor":"beckhoff"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"},{"id":"CWE-23","name":"Relative Path Traversal"}],"description":"TwinCAT OPC UA Server in TF6100 and TS6100 in product versions before 4.3.48.0 or with TcOpcUaServer versions below 3.2.0.194 are prone to a relative path traversal that allow administrators to create or delete any files on the system.","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":"Beckhoff: Relative path traversal vulnerability through TwinCAT OPC UA Server","id":"CVE-2021-34594","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"CODESYS V2 runtime: out-of-bounds read or write access may result in denial-of-service","id":"CVE-2021-34595"},"packages":[],"prev":{"headline":"CODESYS V2 runtime: unauthenticated invalid requests may result in denial-of-service","id":"CVE-2021-34593"},"products":["TwinCAT OPC UA Server"],"published":"2021-11-04","related":[],"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":["Beckhoff Automation"]},"summary":"Administrators can exploit relative path traversal to create or delete arbitrary files on the system via the TwinCAT OPC UA Server.","url":"https://insights.sbomify.com/CVE-2021-34594/"}