{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-1677 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-1677 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-1677 is a high-severity authentication bypass vulnerability in Juniper Networks MIST Cloud UI, published on 16 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-1677 and fix it if it is affected.\n\nWhat it is: CVE-2020-1677 is a high-severity authentication bypass vulnerability in Juniper Networks MIST Cloud UI, published on 16 Oct 2020. 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-2020-1677 in the wild and no public exploit code.\n\nAffected product: Juniper Networks MIST Cloud UI. 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-2020-1677/ (Markdown: https://insights.sbomify.com/CVE-2020-1677/index.md)","id":"CVE-2020-1677","markdown":"https://insights.sbomify.com/CVE-2020-1677/index.md","name":"CVE-2020-1677","record":{"aliases":["GHSA-wx4h-wgr2-66h2"],"analysis":{"component_type":"cloud_service","fix_type":"patch","impacts":["security_bypass","account_takeover"],"network_reachable":"yes","non_default_config":true,"product_category":"Juniper Mist Cloud UI","requires_auth":"none","summary":"Attackers can bypass SAML authentication by modifying signed responses, potentially gaining unauthorized access to the Juniper Mist Cloud UI.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"juniper","cpe":[{"product":"mist_cloud_ui","vendor":"juniper"}],"cvss":{"score":7.2,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-345","name":"Insufficient Verification of Data Authenticity"},{"id":"CWE-20","name":"Improper Input Validation"}],"description":"When SAML authentication is enabled, Juniper Networks Mist Cloud UI might incorrectly handle child elements in SAML responses, allowing a remote attacker to modify a valid SAML response without invalidating its cryptographic signature to bypass SAML authentication security controls. This issue affects all Juniper Networks Mist Cloud UI versions prior to September 2 2020.","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":"Juniper Networks Mist Cloud UI: SAML authentication attribute elements handling vulnerability.","id":"CVE-2020-1677","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Junos OS and Junos OS Evolved: RPD can crash due to a slow memory leak.","id":"CVE-2020-1678"},"packages":[],"prev":{"headline":"Juniper Networks Mist Cloud UI: SAML authentication response handling vulnerability.","id":"CVE-2020-1676"},"products":["MIST Cloud UI"],"published":"2020-10-16","related":[{"cvss_score":8.3,"headline":"Juniper Networks Mist Cloud UI: SAML authentication certificate vulnerability.","id":"CVE-2020-1675","kev_date_added":null,"published":"2020-10-16"},{"cvss_score":7.2,"headline":"Juniper Networks Mist Cloud UI: SAML authentication response handling vulnerability.","id":"CVE-2020-1676","kev_date_added":null,"published":"2020-10-16"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-16","vendors":["Juniper Networks"]},"summary":"Attackers can bypass SAML authentication by modifying signed responses, potentially gaining unauthorized access to the Juniper Mist Cloud UI.","url":"https://insights.sbomify.com/CVE-2020-1677/"}