{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2017-16718 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2017-16718 yet. Limit exposure of the affected software until one is available.","what":"CVE-2017-16718 is a medium-severity vulnerability in ICS-CERT Beckhoff TwinCAT, published on 27 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2017-16718 and fix it if it is affected.\n\nWhat it is: CVE-2017-16718 is a medium-severity vulnerability in ICS-CERT Beckhoff TwinCAT, published on 27 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2017-16718 in the wild and no public exploit code.\n\nAffected product: ICS-CERT Beckhoff TwinCAT. 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-2017-16718/ (Markdown: https://insights.sbomify.com/CVE-2017-16718/index.md)","id":"CVE-2017-16718","markdown":"https://insights.sbomify.com/CVE-2017-16718/index.md","name":"CVE-2017-16718","record":{"aliases":["GHSA-wx26-fm45-hvxc"],"analysis":{"component_type":"ics_ot","fix_type":"patch","impacts":["security_bypass","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Industrial Automation Software","requires_auth":"none","summary":"Attackers with network access can extract a fixed encryption key to bypass authentication in Beckhoff TwinCAT 3 ADS route configuration.","user_interaction":"not_required","vuln_class":"weak_cryptography"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"twincat","vendor":"beckhoff"}],"cvss":{"score":5.9,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.0"},"cwes":[{"id":"CWE-327","name":"Use of a Broken or Risky Cryptographic Algorithm"},{"id":"CWE-522","name":"Insufficiently Protected Credentials"}],"description":"Beckhoff TwinCAT 3 supports communication over ADS. ADS is a protocol for industrial automation in protected environments. This protocol uses user configured routes, that can be edited remotely via ADS. This special command supports encrypted authentication with username/password. The encryption uses a fixed key, that could be extracted by an attacker. Precondition of the exploitation of this weakness is network access at the moment a route is added.","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":"Weak cryptography in Beckhoff TwinCAT","id":"CVE-2017-16718","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"weak_cryptography","year":"2017"},"n_packages":0,"n_references":1,"next":{"headline":"Other in Moxa NPort 5110, 5130, and 5150","id":"CVE-2017-16719"},"packages":[],"prev":{"headline":"Memory corruption in WECON Technology Co., Ltd. LeviStudio HMI","id":"CVE-2017-16717"},"products":["Beckhoff TwinCAT"],"published":"2018-06-27","related":[{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2019-16871","kev_date_added":null,"published":"2019-12-19"},{"cvss_score":9.1,"headline":"Weak cryptography in Beckhoff TwinCAT","id":"CVE-2017-16726","kev_date_added":null,"published":"2018-06-27"},{"cvss_score":7.8,"headline":"Privilege escalation in Beckhoff TwinCAT PLC products","id":"CVE-2018-7502","kev_date_added":null,"published":"2018-03-23"},{"cvss_score":7.5,"headline":"Beckhoff TwinCAT Profinet Driver Divide-by-Zero Denial of Service","id":"CVE-2019-5637","kev_date_added":null,"published":"2019-11-21"},{"cvss_score":5.3,"headline":"Beckhoff: Etherleak in TwinCAT RT network driver","id":"CVE-2020-12494","kev_date_added":null,"published":"2020-06-16"},{"cvss_score":5.3,"headline":"Beckhoff TwinCAT Discovery Service Denial of Service","id":"CVE-2019-5636","kev_date_added":null,"published":"2019-11-21"}],"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":["ICS-CERT"]},"summary":"Attackers with network access can extract a fixed encryption key to bypass authentication in Beckhoff TwinCAT 3 ADS route configuration.","url":"https://insights.sbomify.com/CVE-2017-16718/"}