{"answers":{"affected":"It affects 20 products.","exploited":"There is no known exploitation of CVE-2017-7903 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2017-7903 yet. Limit exposure of the affected software until one is available.","what":"CVE-2017-7903 is a critical vulnerability in Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400, published on 30 Jun 2017. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2017-7903 and fix it if it is affected.\n\nWhat it is: CVE-2017-7903 is a critical vulnerability in Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400, published on 30 Jun 2017. 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-2017-7903 in the wild and no public exploit code.\n\nAffected product: Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400. 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-2017-7903/ (Markdown: https://insights.sbomify.com/CVE-2017-7903/index.md)","id":"CVE-2017-7903","markdown":"https://insights.sbomify.com/CVE-2017-7903/index.md","name":"CVE-2017-7903","record":{"aliases":["GHSA-rqf2-x29q-cfxh"],"analysis":{"component_type":"ics_ot","fix_type":"patch","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"PLC controller","requires_auth":"none","summary":"Attackers can bypass authentication on Rockwell Automation PLCs due to weak numeric password requirements with small character limits.","user_interaction":"not_required","vuln_class":"weak_cryptography"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"1763-l16awa_series_a","vendor":"rockwellautomation"},{"product":"1763-l16awa_series_b","vendor":"rockwellautomation"},{"product":"1763-l16bbb_series_a","vendor":"rockwellautomation"},{"product":"1763-l16bbb_series_b","vendor":"rockwellautomation"},{"product":"1763-l16bwa_series_a","vendor":"rockwellautomation"},{"product":"1763-l16bwa_series_b","vendor":"rockwellautomation"},{"product":"1763-l16dwd_series_a","vendor":"rockwellautomation"},{"product":"1763-l16dwd_series_b","vendor":"rockwellautomation"},{"product":"1766-l32awa_series_a","vendor":"rockwellautomation"},{"product":"1766-l32awa_series_b","vendor":"rockwellautomation"},{"product":"1766-l32awaa_series_a","vendor":"rockwellautomation"},{"product":"1766-l32awaa_series_b","vendor":"rockwellautomation"},{"product":"1766-l32bwa_series_a","vendor":"rockwellautomation"},{"product":"1766-l32bwa_series_b","vendor":"rockwellautomation"},{"product":"1766-l32bwaa_series_a","vendor":"rockwellautomation"},{"product":"1766-l32bwaa_series_b","vendor":"rockwellautomation"},{"product":"1766-l32bxb_series_a","vendor":"rockwellautomation"},{"product":"1766-l32bxb_series_b","vendor":"rockwellautomation"},{"product":"1766-l32bxba_series_a","vendor":"rockwellautomation"},{"product":"1766-l32bxba_series_b","vendor":"rockwellautomation"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","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-326","name":"Inadequate Encryption Strength"},{"id":"CWE-521","name":"Weak Password Requirements"}],"description":"A Weak Password Requirements issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA, Series A and B, Version 16.00 and prior versions; 1763-L16BBB, Series A and B, Version 16.00 and prior versions; 1763-L16BWA, Series A and B, Version 16.00 and prior versions; and 1763-L16DWD, Series A and B, Version 16.00 and prior versions and Allen-Bradley MicroLogix 1400 programmable logic controllers 1766-L32AWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWAA, Series A and B, Version 16.00 and prior versions; 1766-L32BXB, Series A and B, Version 16.00 and prior versions; 1766-L32BXBA, Series A and B, Version 16.00 and prior versions; and 1766-L32AWAA, Series A and B, Version 16.00 and prior versions. The affected products use a numeric password with a small maximum character size for the password.","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":"Weak cryptography in Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400","id":"CVE-2017-7903","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"weak_cryptography","year":"2017"},"n_packages":0,"n_references":2,"next":{"headline":"Weak cryptography in GE Multilin SR, UR, and URplus Protective Relays","id":"CVE-2017-7905"},"packages":[],"prev":{"headline":"Weak cryptography in Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400","id":"CVE-2017-7902"},"products":["Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400"],"published":"2017-06-30","related":[{"cvss_score":9.8,"headline":"Auth bypass in Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400","id":"CVE-2017-7898","kev_date_added":null,"published":"2017-06-30"},{"cvss_score":9.8,"headline":"Information disclosure in Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400","id":"CVE-2017-7899","kev_date_added":null,"published":"2017-06-30"},{"cvss_score":9.8,"headline":"Weak cryptography in Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400","id":"CVE-2017-7902","kev_date_added":null,"published":"2017-06-30"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2016-0868","kev_date_added":null,"published":"2016-01-28"},{"cvss_score":8.6,"headline":"Weak cryptography in Rockwell Automation Allen-Bradley MicroLogix 1100 and 1400","id":"CVE-2017-7901","kev_date_added":null,"published":"2017-06-30"},{"cvss_score":7.3,"headline":"Information disclosure in Rockwell Automation MicroLogix 1100 and 1400","id":"CVE-2016-9334","kev_date_added":null,"published":"2017-02-13"}],"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":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-06-03","vendors":["n/a"]},"summary":"Attackers can bypass authentication on Rockwell Automation PLCs due to weak numeric password requirements with small character limits.","url":"https://insights.sbomify.com/CVE-2017-7903/"}