{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-34572 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-34572 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-34572 is a medium-severity vulnerability in Enbra EWM 1.7.29, published on 16 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-34572 and fix it if it is affected.\n\nWhat it is: CVE-2021-34572 is a medium-severity vulnerability in Enbra EWM 1.7.29, published on 16 Sep 2021. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-34572 in the wild and no public exploit code.\n\nAffected product: Enbra EWM 1.7.29. 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-2021-34572/ (Markdown: https://insights.sbomify.com/CVE-2021-34572/index.md)","id":"CVE-2021-34572","markdown":"https://insights.sbomify.com/CVE-2021-34572/index.md","name":"CVE-2021-34572","record":{"aliases":["GHSA-7x8j-m6q2-x954"],"analysis":{"component_type":"iot_embedded","fix_type":"no_fix_stated","impacts":["data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Wireless M-Bus meter","requires_auth":"none","summary":"Attackers can replay wireless M-Bus sensor data because the system fails to detect replays, leading to inaccurate readings.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CERTVDE","cpe":[{"product":"ewm","vendor":"enbra"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-345","name":"Insufficient Verification of Data Authenticity"}],"description":"Enbra EWM 1.7.29 does not check for or detect replay attacks sent by wireless M-Bus Security mode 5 devices. Instead timestamps of the sensor are replaced by the time of the readout even if the data is a replay of earlier data.","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":"Insufficient Verification of Data Authenticity in Enbra EWM (replay attack)","id":"CVE-2021-34572","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Incorrect calculation in Enbra EWM does not report backflows or no flow events","id":"CVE-2021-34573"},"packages":[],"prev":{"headline":"Hard-coded Credentials in Enbra Wireless M-Bus devices","id":"CVE-2021-34571"},"products":["EWM 1.7.29"],"published":"2021-09-16","related":[{"cvss_score":6.5,"headline":"Hard-coded Credentials in Enbra Wireless M-Bus devices","id":"CVE-2021-34571","kev_date_added":null,"published":"2021-09-16"},{"cvss_score":6.2,"headline":"Incorrect calculation in Enbra EWM does not report backflows or no flow events","id":"CVE-2021-34573","kev_date_added":null,"published":"2021-09-16"}],"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":["Enbra"]},"summary":"Attackers can replay wireless M-Bus sensor data because the system fails to detect replays, leading to inaccurate readings.","url":"https://insights.sbomify.com/CVE-2021-34572/"}