{"answers":{"affected":"It affects 4 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-7924 exists.","fix":"No fix has been published for CVE-2017-7924 yet. Limit exposure of the affected software until one is available.","what":"CVE-2017-7924 is a high-severity denial of service vulnerability in Rockwell Automation MicroLogix 1100 Controllers, published on 20 Sep 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-2017-7924 and fix it if it is affected.\n\nWhat it is: CVE-2017-7924 is a high-severity denial of service vulnerability in Rockwell Automation MicroLogix 1100 Controllers, published on 20 Sep 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-7924 exists.\n\nAffected product: Rockwell Automation MicroLogix 1100 Controllers. 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-2017-7924/ (Markdown: https://insights.sbomify.com/CVE-2017-7924/index.md)","id":"CVE-2017-7924","markdown":"https://insights.sbomify.com/CVE-2017-7924/index.md","name":"CVE-2017-7924","record":{"aliases":["GHSA-ch2w-m37v-83fq"],"analysis":{"component_type":"ics_ot","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"PLC controller","requires_auth":"none","summary":"A remote unauthenticated attacker can cause a denial of service on Rockwell Automation MicroLogix 1100 controllers by sending a specially crafted PCCC packet.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"icscert","cpe":[{"product":"1763-l16awa_firmware","vendor":"rockwellautomation"},{"product":"1763-l16bbb_firmware","vendor":"rockwellautomation"},{"product":"1763-l16bwa_firmware","vendor":"rockwellautomation"},{"product":"1763-l16dwd_firmware","vendor":"rockwellautomation"}],"cvss":{"score":7.5,"severity":"high","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"An Improper Input Validation issue was discovered in Rockwell Automation MicroLogix 1100 controllers 1763-L16BWA, 1763-L16AWA, 1763-L16BBB, and 1763-L16DWD. A remote, unauthenticated attacker could send a single, specially crafted Programmable Controller Communication Commands (PCCC) packet to the controller that could potentially cause the controller to enter a DoS condition.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":1,"nuclei":0,"refs":[{"date":null,"kind":"metasploit","ref":"auxiliary/dos/scada/allen_bradley_pccc","stars":null,"title":"DoS Exploitation of Allen-Bradley's Legacy Protocol (PCCC)"}],"tier":"weaponised"},"has_fix":null,"headline":"Denial of service in Rockwell Automation MicroLogix 1100 Controllers","id":"CVE-2017-7924","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2017"},"n_packages":0,"n_references":2,"next":{"headline":"Hardcoded credentials in Dahua Technology Co., Ltd Digital Video Recorders and IP Cameras","id":"CVE-2017-7925"},"packages":[],"prev":{"headline":"Hardcoded credentials in Hikvision Cameras","id":"CVE-2017-7923"},"products":["Rockwell Automation MicroLogix 1100 Controllers"],"published":"2017-09-20","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)"},{"class":"attribution","licence":"BSD-3-Clause","name":"Metasploit"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["n/a"]},"summary":"A remote unauthenticated attacker can cause a denial of service on Rockwell Automation MicroLogix 1100 controllers by sending a specially crafted PCCC packet.","url":"https://insights.sbomify.com/CVE-2017-7924/"}