{"answers":{"affected":"It affects 27 products.","exploited":"There is no known exploitation of CVE-2019-1649 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2019-1649 yet. Limit exposure of the affected software until one is available.","what":"CVE-2019-1649 is a medium-severity vulnerability in Cisco Ios, published on 13 May 2019. 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-2019-1649 and fix it if it is affected.\n\nWhat it is: CVE-2019-1649 is a medium-severity vulnerability in Cisco Ios, published on 13 May 2019. 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-2019-1649 in the wild and no public exploit code.\n\nAffected product: Cisco Ios. 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-2019-1649/ (Markdown: https://insights.sbomify.com/CVE-2019-1649/index.md)","id":"CVE-2019-1649","markdown":"https://insights.sbomify.com/CVE-2019-1649/index.md","name":"CVE-2019-1649","record":{"aliases":["GHSA-8p3x-34c5-5pmx"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Cisco Secure Boot","requires_auth":"high_privilege","summary":"An authenticated local attacker with elevated privileges can tamper with Secure Boot firmware, potentially installing malicious images or bricking the device.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"15454-m-wse-k9_firmware","vendor":"cisco"},{"product":"analog_voice_network_interface_modules_firmware","vendor":"cisco"},{"product":"asa_5500_firmware","vendor":"cisco"},{"product":"asr_1000_series_firmware","vendor":"cisco"},{"product":"asr_1001_firmware","vendor":"cisco"},{"product":"catalyst_9800-40_wireless_controller_firmware","vendor":"cisco"},{"product":"catalyst_9800-80_wireless_controller_firmware","vendor":"cisco"},{"product":"encs_5100_firmware","vendor":"cisco"},{"product":"encs_5400_firmware","vendor":"cisco"},{"product":"firepower_2100_firmware","vendor":"cisco"},{"product":"firepower_4000_firmware","vendor":"cisco"},{"product":"firepower_9000_firmware","vendor":"cisco"},{"product":"ic3000-k9_firmware","vendor":"cisco"},{"product":"industrial_security_appliances_3000_firmware","vendor":"cisco"},{"product":"integrated_services_router_4200_firmware","vendor":"cisco"},{"product":"integrated_services_router_4300_firmware","vendor":"cisco"},{"product":"integrated_services_router_4400_firmware","vendor":"cisco"},{"product":"integrated_services_router_t1\\/e1_voice_and_wan_network_interface_modules_firmware","vendor":"cisco"},{"product":"ios","vendor":"cisco"},{"product":"ios_xe","vendor":"cisco"},{"product":"ios_xr","vendor":"cisco"},{"product":"ncs2k-mr-mxp-k9_firmware","vendor":"cisco"},{"product":"nx-os","vendor":"cisco"},{"product":"ons_15454_mstp_firmware","vendor":"cisco"},{"product":"sm-x-1t3\\/e3_firmware","vendor":"cisco"},{"product":"supervisor_a\\+_firmware","vendor":"cisco"},{"product":"supervisor_b\\+_firmware","vendor":"cisco"}],"cvss":{"score":6.7,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-667","name":"Improper Locking"},{"id":"CWE-284","name":"Improper Access Control"}],"description":"A vulnerability in the logic that handles access control to one of the hardware components in Cisco's proprietary Secure Boot implementation could allow an authenticated, local attacker to write a modified firmware image to the component. This vulnerability affects multiple Cisco products that support hardware-based Secure Boot functionality. The vulnerability is due to an improper check on the area of code that manages on-premise updates to a Field Programmable Gate Array (FPGA) part of the Secure Boot hardware implementation. An attacker with elevated privileges and access to the underlying operating system that is running on the affected device could exploit this vulnerability by writing a modified firmware image to the FPGA. A successful exploit could either cause the device to become unusable (and require a hardware replacement) or allow tampering with the Secure Boot verification process, which under some circumstances may allow the attacker to install and boot a malicious software image. An attacker will need to fulfill all the following conditions to attempt to exploit this vulnerability: Have privileged administrative access to the device. Be able to access the underlying operating system running on the device; this can be achieved either by using a supported, documented mechanism or by exploiting another vulnerability that would provide an attacker with such access. Develop or have access to a platform-specific exploit. An attacker attempting to exploit this vulnerability across multiple affected platforms would need to research each one of those platforms and then develop a platform-specific exploit. Although the research process could be reused across different platforms, an exploit developed for a given hardware platform is unlikely to work on a different hardware platform.","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":"Cisco Secure Boot Hardware Tampering Vulnerability","id":"CVE-2019-1649","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"cisco:ios","products":["cisco:ios","cisco:ios_xe","cisco:ios_xr","cisco:nx-os"],"type":"security_feature_bypass","year":"2019"},"n_packages":0,"n_references":4,"next":{"headline":"Cisco SD-WAN Solution Arbitrary File Overwrite Vulnerability","id":"CVE-2019-1650"},"packages":[],"prev":{"headline":"Cisco SD-WAN Solution Privilege Escalation Vulnerability","id":"CVE-2019-1648"},"products":["Cisco Routers"],"published":"2019-05-13","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-11-20","vendors":["Cisco"]},"summary":"An authenticated local attacker with elevated privileges can tamper with Secure Boot firmware, potentially installing malicious images or bricking the device.","url":"https://insights.sbomify.com/CVE-2019-1649/"}