{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-16495 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2018-16495 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-16495 is a high-severity authentication bypass vulnerability in Versa VOS, published on 26 May 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-16495 and fix it if it is affected.\n\nWhat it is: CVE-2018-16495 is a high-severity authentication bypass vulnerability in Versa VOS, published on 26 May 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-16495 in the wild and no public exploit code.\n\nAffected product: Versa VOS. 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-2018-16495/ (Markdown: https://insights.sbomify.com/CVE-2018-16495/index.md)","id":"CVE-2018-16495","markdown":"https://insights.sbomify.com/CVE-2018-16495/index.md","name":"CVE-2018-16495","record":{"aliases":["GHSA-gvq8-8f97-wwvq"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Versa VOS","requires_auth":"low_privilege","summary":"Attackers can hijack user sessions by fixing session IDs before login, leading to account takeover in Versa VOS.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"versa_operating_system","vendor":"versa-networks"}],"cvss":{"score":8.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-384","name":"Session Fixation"}],"description":"In VOS user session identifier (authentication token) is issued to the browser prior to authentication but is not changed after the user successfully logs into the application. Failing to issue a new session ID following a successful login introduces the possibility for an attacker to set up a trap session on the device the victim is likely to login with.","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":"Auth bypass in Versa VOS","id":"CVE-2018-16495","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2018"},"n_packages":0,"n_references":1,"next":{"headline":"Auth bypass in Versa Director","id":"CVE-2018-16496"},"packages":[],"prev":{"headline":"Misconfiguration in Versa VOS","id":"CVE-2018-16494"},"products":["Versa VOS"],"published":"2021-05-26","related":[{"cvss_score":8.8,"headline":"Misconfiguration in Versa VOS","id":"CVE-2018-16494","kev_date_added":null,"published":"2021-05-26"},{"cvss_score":5.9,"headline":"Weak cryptography in Versa VOS","id":"CVE-2018-16499","kev_date_added":null,"published":"2021-05-26"}],"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":"2024-08-05","vendors":["n/a"]},"summary":"Attackers can hijack user sessions by fixing session IDs before login, leading to account takeover in Versa VOS.","url":"https://insights.sbomify.com/CVE-2018-16495/"}