{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2021-23843 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-23843 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-23843 is a high-severity authentication bypass vulnerability in Bosch AMC2, published on 19 Jan 2022. 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-2021-23843 and fix it if it is affected.\n\nWhat it is: CVE-2021-23843 is a high-severity authentication bypass vulnerability in Bosch AMC2, published on 19 Jan 2022. 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-2021-23843 in the wild and no public exploit code.\n\nAffected product: Bosch AMC2. 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-2021-23843/ (Markdown: https://insights.sbomify.com/CVE-2021-23843/index.md)","id":"CVE-2021-23843","markdown":"https://insights.sbomify.com/CVE-2021-23843/index.md","name":"CVE-2021-23843","record":{"aliases":["GHSA-mw72-7m3m-vvm2"],"analysis":{"component_type":"ics_ot","fix_type":"patch","impacts":["data_modify","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Bosch AMC2 device","requires_auth":"none","summary":"Attackers on the local network can bypass password protection to modify configuration or cause denial of service on Bosch AMC2 devices.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"bosch","cpe":[{"product":"access_management_system","vendor":"bosch"},{"product":"access_professional_edition","vendor":"bosch"},{"product":"amc2_firmware","vendor":"bosch"},{"product":"building_integration_system","vendor":"bosch"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"}],"description":"The Bosch software tools AccessIPConfig.exe and AmcIpConfig.exe are used to configure certains settings in AMC2 devices. The tool allows putting a password protection on configured devices to restrict access to the configuration of an AMC2. An attacker can circumvent this protection and make unauthorized changes to configuration data on the device. An attacker can exploit this vulnerability to manipulate the device\\'s configuration or make it unresponsive in the local network. The attacker needs to have access to the local network, typically even the same subnet.","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":"Lack of authentication mechanisms on the device","id":"CVE-2021-23843","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"B426 Web Configuration Authentication Bypass","id":"CVE-2021-23845"},"packages":[],"prev":{"headline":"Use of Hard-coded Cryptographic Key","id":"CVE-2021-23842"},"products":["AMC2","AMS","APE","BIS"],"published":"2022-01-19","related":[{"cvss_score":5.7,"headline":"Use of Hard-coded Cryptographic Key","id":"CVE-2021-23842","kev_date_added":null,"published":"2022-01-19"}],"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":["Bosch"]},"summary":"Attackers on the local network can bypass password protection to modify configuration or cause denial of service on Bosch AMC2 devices.","url":"https://insights.sbomify.com/CVE-2021-23843/"}