{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-15787 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-15787 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-15787 is a critical authentication bypass vulnerability in Siemens SIMATIC HMI Unified Comfort Panels, published on 9 Sep 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-15787 and fix it if it is affected.\n\nWhat it is: CVE-2020-15787 is a critical authentication bypass vulnerability in Siemens SIMATIC HMI Unified Comfort Panels, published on 9 Sep 2020. 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-2020-15787 in the wild and no public exploit code.\n\nAffected product: Siemens SIMATIC HMI Unified Comfort Panels. 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-2020-15787/ (Markdown: https://insights.sbomify.com/CVE-2020-15787/index.md)","id":"CVE-2020-15787","markdown":"https://insights.sbomify.com/CVE-2020-15787/index.md","name":"CVE-2020-15787","record":{"aliases":["GHSA-625f-424x-6j4w"],"analysis":{"component_type":"ics_ot","fix_type":"patch","impacts":["account_takeover","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"HMI Comfort Panels","requires_auth":"none","summary":"Remote attackers can brute-force passwords due to insufficient validation, gaining unauthorized access to the Sm@rt Server on Siemens HMI panels.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[{"product":"simatic_hmi_united_comfort_panels_firmware","vendor":"siemens"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"},{"id":"CWE-305","name":"Authentication Bypass by Primary Weakness"}],"description":"A vulnerability has been identified in SIMATIC HMI Unified Comfort Panels (All versions \u003c= V16). Affected devices insufficiently validate authentication attempts as the information given can be truncated to match only a set number of characters versus the whole provided string. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack.","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":"Auth bypass in SIMATIC HMI Unified Comfort Panels","id":"CVE-2020-15787","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Cross-site scripting in Polarion Subversion Webclient","id":"CVE-2020-15788"},"packages":[],"prev":{"headline":"Auth bypass in SIMATIC HMI Basic Panels 2nd Generation (incl. SIPLUS variants)","id":"CVE-2020-15786"},"products":["SIMATIC HMI Unified Comfort Panels"],"published":"2020-09-09","related":[],"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":"2024-08-04","vendors":["Siemens"]},"summary":"Remote attackers can brute-force passwords due to insufficient validation, gaining unauthorized access to the Sm@rt Server on Siemens HMI panels.","url":"https://insights.sbomify.com/CVE-2020-15787/"}