{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-33921 exists.","fix":"No fix has been published for CVE-2023-33921 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-33921 is a medium-severity authentication bypass vulnerability in Siemens CP-8031 MASTER MODULE, published on 13 Jun 2023. 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-2023-33921 and fix it if it is affected.\n\nWhat it is: CVE-2023-33921 is a medium-severity authentication bypass vulnerability in Siemens CP-8031 MASTER MODULE, published on 13 Jun 2023. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-33921 exists.\n\nAffected product: Siemens CP-8031 MASTER MODULE. 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-2023-33921/ (Markdown: https://insights.sbomify.com/CVE-2023-33921/index.md)","id":"CVE-2023-33921","markdown":"https://insights.sbomify.com/CVE-2023-33921/index.md","name":"CVE-2023-33921","record":{"aliases":["GHSA-hpw2-7w94-ff35"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["privilege_escalation","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Siemens master module","requires_auth":"none","summary":"An attacker with physical access can brute-force the root password via an exposed UART console to gain full control of Siemens master modules.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[{"product":"cpci85_firmware","vendor":"siemens"}],"cvss":{"score":6.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","version":"3.1"},"cwes":[{"id":"CWE-749","name":"Exposed Dangerous Method or Function"}],"description":"A vulnerability has been identified in CP-8031 MASTER MODULE (All versions \u003c CPCI85 V05), CP-8050 MASTER MODULE (All versions \u003c CPCI85 V05). The affected devices contain an exposed UART console login interface. An attacker with direct physical access could try to bruteforce or crack the root password to login to the device.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"Auth bypass in CP-8031 MASTER MODULE","id":"CVE-2023-33921","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"WordPress Elementor plugin \u003c= 3.13.2 - Broken Access Control vulnerability","id":"CVE-2023-33922"},"packages":[],"prev":{"headline":"Hardcoded credentials in CP-8031 MASTER MODULE","id":"CVE-2023-33920"},"products":["CP-8031 MASTER MODULE","CP-8050 MASTER MODULE"],"published":"2023-06-13","related":[{"cvss_score":7.2,"headline":"Command injection in CP-8031 MASTER MODULE","id":"CVE-2023-33919","kev_date_added":null,"published":"2023-06-13"},{"cvss_score":6.8,"headline":"Hardcoded credentials in CP-8031 MASTER MODULE","id":"CVE-2023-33920","kev_date_added":null,"published":"2023-06-13"}],"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":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-02-13","vendors":["Siemens"]},"summary":"An attacker with physical access can brute-force the root password via an exposed UART console to gain full control of Siemens master modules.","url":"https://insights.sbomify.com/CVE-2023-33921/"}