{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2021-23842 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-23842 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-23842 is a medium-severity vulnerability in Bosch AMC2, published on 19 Jan 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-23842 and fix it if it is affected.\n\nWhat it is: CVE-2021-23842 is a medium-severity vulnerability in Bosch AMC2, published on 19 Jan 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-23842 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-2021-23842/ (Markdown: https://insights.sbomify.com/CVE-2021-23842/index.md)","id":"CVE-2021-23842","markdown":"https://insights.sbomify.com/CVE-2021-23842/index.md","name":"CVE-2021-23842","record":{"aliases":["GHSA-j6hr-vmm6-m6c2"],"analysis":{"component_type":"ics_ot","fix_type":"patch","impacts":["data_read","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Bosch AMC2 controller","requires_auth":"none","summary":"An attacker on the local network can extract a hardcoded key to decrypt traffic and modify device configuration.","user_interaction":"required","vuln_class":"hardcoded_credentials"},"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":5.7,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-798","name":"Use of Hard-coded Credentials"},{"id":"CWE-321","name":"Use of Hard-coded Cryptographic Key"}],"description":"Communication to the AMC2 uses a state-of-the-art cryptographic algorithm for symmetric encryption called Blowfish. An attacker could retrieve the key from the firmware to decrypt network traffic between the AMC2 and the host system. Thus, an attacker can exploit this vulnerability to decrypt and modify network traffic, decrypt and further investigate the device\\'s firmware file, and change the device configuration. 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":"Use of Hard-coded Cryptographic Key","id":"CVE-2021-23842","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"hardcoded_credentials","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Lack of authentication mechanisms on the device","id":"CVE-2021-23843"},"packages":[],"prev":{"headline":"Null pointer deref in X509_issuer_and_serial_hash()","id":"CVE-2021-23841"},"products":["AMC2","AMS","APE","BIS"],"published":"2022-01-19","related":[{"cvss_score":8.8,"headline":"Lack of authentication mechanisms on the device","id":"CVE-2021-23843","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":"An attacker on the local network can extract a hardcoded key to decrypt traffic and modify device configuration.","url":"https://insights.sbomify.com/CVE-2021-23842/"}