{"answers":{"affected":"It affects 17 products.","exploited":"There is no known exploitation of CVE-2012-6440 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2012-6440 yet. Limit exposure of the affected software until one is available.","what":"CVE-2012-6440 is a critical authentication bypass vulnerability in Rockwell Automation 1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules, published on 24 Jan 2013. 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-2012-6440 and fix it if it is affected.\n\nWhat it is: CVE-2012-6440 is a critical authentication bypass vulnerability in Rockwell Automation 1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules, published on 24 Jan 2013. 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-2012-6440 in the wild and no public exploit code.\n\nAffected product: Rockwell Automation 1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules. 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-2012-6440/ (Markdown: https://insights.sbomify.com/CVE-2012-6440/index.md)","id":"CVE-2012-6440","markdown":"https://insights.sbomify.com/CVE-2012-6440/index.md","name":"CVE-2012-6440","record":{"aliases":["GHSA-c3p8-qp2x-9xxf"],"analysis":{"component_type":"ics_ot","fix_type":"patch","impacts":["data_read","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Rockwell PLC","requires_auth":"none","summary":"Attackers can bypass web server authentication via MitM or replay attacks to view and alter PLC configuration and diagnostics.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"1756-enbt","vendor":"rockwellautomation"},{"product":"1756-eweb","vendor":"rockwellautomation"},{"product":"1768-enbt","vendor":"rockwellautomation"},{"product":"1768-eweb","vendor":"rockwellautomation"},{"product":"1794-aentr_flex_i\\/o_ethernet\\/ip_adapter","vendor":"rockwellautomation"},{"product":"compactlogix","vendor":"rockwellautomation"},{"product":"compactlogix_controllers","vendor":"rockwellautomation"},{"product":"compactlogix_l32e_controller","vendor":"rockwellautomation"},{"product":"compactlogix_l35e_controller","vendor":"rockwellautomation"},{"product":"controllogix","vendor":"rockwellautomation"},{"product":"controllogix_controllers","vendor":"rockwellautomation"},{"product":"flexlogix_1788-enbt_adapter","vendor":"rockwellautomation"},{"product":"guardlogix","vendor":"rockwellautomation"},{"product":"guardlogix_controllers","vendor":"rockwellautomation"},{"product":"micrologix","vendor":"rockwellautomation"},{"product":"softlogix","vendor":"rockwellautomation"},{"product":"softlogix_controllers","vendor":"rockwellautomation"}],"cvss":{"score":9.3,"severity":"critical","source":"cna","vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","version":"2.0"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"The Web server password authentication mechanism used by the products is vulnerable to a MitM and Replay attack. Successful exploitation of this vulnerability will allow unauthorized access of the product’s Web server to view and alter product configuration and diagnostics information.\n\nRockwell Automation EtherNet/IP products; 1756-ENBT, 1756-EWEB, 1768-ENBT, and 1768-EWEB communication modules; CompactLogix L32E and L35E controllers; 1788-ENBT FLEXLogix adapter; 1794-AENTR FLEX I/O EtherNet/IP adapter; ControlLogix 18 and earlier; CompactLogix 18 and earlier; GuardLogix 18 and earlier; SoftLogix 18 and earlier; CompactLogix controllers 19 and earlier; SoftLogix controllers 19 and earlier; ControlLogix controllers 20 and earlier; GuardLogix controllers 20 and earlier; and MicroLogix 1100 and 1400","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":"Rockwell Automation ControlLogix PLC Improper Input Validation","id":"CVE-2012-6440","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2012"},"n_packages":0,"n_references":5,"next":{"headline":"Rockwell Automation ControlLogix PLC Information Exposure","id":"CVE-2012-6441"},"packages":[],"prev":{"headline":"Rockwell Automation ControlLogix PLC Improper Access Control","id":"CVE-2012-6439"},"products":["1756-ENBT, 1756-EWEB, 1768-ENBT, 1768-EWEB communication modules","1788-ENBT FLEXLogix adapter","1794-AENTR FLEX I/O EtherNet/IP adapter","CompactLogix L32E and L35E controllers","CompactLogix and SoftLogix controllers","ControlLogix and GuardLogix controllers","ControlLogix, CompactLogix, GuardLogix, and SoftLogix","MicroLogix"],"published":"2013-01-24","related":[{"cvss_score":10,"headline":"Rockwell Automation ControlLogix PLC Improper Authentication","id":"CVE-2012-6437","kev_date_added":null,"published":"2013-01-24"},{"cvss_score":8.5,"headline":"Rockwell Automation ControlLogix PLC Improper Access Control","id":"CVE-2012-6439","kev_date_added":null,"published":"2013-01-24"},{"cvss_score":7.8,"headline":"Rockwell Automation ControlLogix PLC Improper Access Control","id":"CVE-2012-6435","kev_date_added":null,"published":"2013-01-24"},{"cvss_score":7.8,"headline":"Rockwell Automation ControlLogix PLC Improper Input Validation","id":"CVE-2012-6436","kev_date_added":null,"published":"2013-01-24"},{"cvss_score":7.8,"headline":"Rockwell Automation ControlLogix PLC Improper Input Validation","id":"CVE-2012-6438","kev_date_added":null,"published":"2013-01-24"},{"cvss_score":5,"headline":"Rockwell Automation ControlLogix PLC Information Exposure","id":"CVE-2012-6441","kev_date_added":null,"published":"2013-01-24"}],"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-03","vendors":["Rockwell Automation"]},"summary":"Attackers can bypass web server authentication via MitM or replay attacks to view and alter PLC configuration and diagnostics.","url":"https://insights.sbomify.com/CVE-2012-6440/"}