{"answers":{"affected":"3 open source packages ship an affected version, including github.com/lf-edge/eve. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-43633 in the wild and no public exploit code.","fix":"Upgrade github.com/lf-edge/eve to 0.0.0-20220708121648-5fef4d92e758 or later.","what":"CVE-2023-43633 is a high-severity vulnerability in EVE OS, published on 21 Sep 2023. 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-2023-43633 and fix it if it is affected.\n\nWhat it is: CVE-2023-43633 is a high-severity vulnerability in EVE OS, published on 21 Sep 2023. 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-2023-43633 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/lf-edge/eve (Go): affected all versions; fixed in 0.0.0-20220708121648-5fef4d92e758\n- github.com/lf-edge/eve (Go): affected all versions; fixed in 0.0.0-20220708121648-5fef4d92e758\n- github.com/lf-edge/eve (Go): affected all versions; fixed in 0.0.0-20220708121648-5fef4d92e758\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-2023-43633/ (Markdown: https://insights.sbomify.com/CVE-2023-43633/index.md)","id":"CVE-2023-43633","markdown":"https://insights.sbomify.com/CVE-2023-43633/index.md","name":"CVE-2023-43633","record":{"aliases":["GHSA-4c4v-42hc-72p6","GO-2026-4428"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["privilege_escalation","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"EVE OS","requires_auth":"low_privilege","summary":"Attackers can bypass measured boot to enable debug features like SSH and VNC, gaining full device control without detection.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"ASRG","cpe":[{"product":"eve","vendor":"lfedge"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-922","name":"Insecure Storage of Sensitive Information"},{"id":"CWE-522","name":"Insufficiently Protected Credentials"}],"description":"On boot, the Pillar eve container checks for the existence and content of\n“/config/GlobalConfig/global.json”.\n\nIf the file exists, it overrides the existing configuration on the device on boot.\n\nThis allows an attacker to change the system’s configuration, which also includes some\ndebug functions.\n\nThis could be used to unlock the ssh with custom “authorized_keys” via the\n“debug.enable.ssh” key, similar to the “authorized_keys” finding that was noted before.\n\nOther usages include unlocking the usb to enable the keyboard via the “debug.enable.usb”\nkey, allowing VNC access via the “app.allow.vnc” key, and more.\n\nAn attacker could easily enable these debug functionalities without triggering the “measured\nboot” mechanism implemented by EVE OS, and without marking the device as “UUD”\n(“Unknown Update Detected”).\nThis is because the “/config” partition is not protected by “measured boot”, it is mutable and it\nis not encrypted in any way.\n\nAn attacker can gain full control over the device without changing the PCR values, thereby not\ntriggering the “measured boot” mechanism, and having full access to the vault.\n\nNote:\n\nThis issue was partially fixed in these commits (after disclosure to Zededa), where the config\npartition measurement was added to PCR13:\n\n• aa3501d6c57206ced222c33aea15a9169d629141\n\n• 5fef4d92e75838cc78010edaed5247dfbdae1889.\n\nThis issue was made viable in version 9.0.0 when the calculation was moved to PCR14 but it was not included in the measured boot.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Debug Functions Unlockable Without Triggering Measured Boot","id":"CVE-2023-43633","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"security_feature_bypass","year":"2023"},"n_packages":3,"n_references":1,"next":{"headline":"Config Partition Not Protected by Measured Boot","id":"CVE-2023-43634"},"packages":[{"ecosystem":"Go","fixed":["0.0.0-20220708121648-5fef4d92e758"],"introduced":["0"],"last_affected":[],"package":"github.com/lf-edge/eve","purl":null,"source":"GHSA-4c4v-42hc-72p6"},{"ecosystem":"Go","fixed":["0.0.0-20220708121648-5fef4d92e758"],"introduced":["0"],"last_affected":[],"package":"github.com/lf-edge/eve","purl":"pkg:golang/github.com/lf-edge/eve","source":"GHSA-4c4v-42hc-72p6"},{"ecosystem":"Go","fixed":["0.0.0-20220708121648-5fef4d92e758"],"introduced":["0"],"last_affected":[],"package":"github.com/lf-edge/eve","purl":"pkg:golang/github.com/lf-edge/eve","source":"GO-2026-4428"}],"prev":{"headline":"Freely Allocate Buffer on The Stack With Data From Socket","id":"CVE-2023-43632"},"products":["EVE OS"],"published":"2023-09-21","related":[{"cvss_score":8.8,"headline":"Config Partition Not Protected by Measured Boot","id":"CVE-2023-43634","kev_date_added":null,"published":"2023-09-21"},{"cvss_score":7.8,"headline":"Vault Key Partially Predetermined","id":"CVE-2023-43637","kev_date_added":null,"published":"2023-09-21"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":"2024-09-24","vendors":[" LF-Edge, Zededa"]},"summary":"Attackers can bypass measured boot to enable debug features like SSH and VNC, gaining full device control without detection.","url":"https://insights.sbomify.com/CVE-2023-43633/"}