{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-1366 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-1366 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-1366 is a high-severity vulnerability in Cisco Anyconnect Secure Mobility Client, published on 17 Feb 2021. 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-2021-1366 and fix it if it is affected.\n\nWhat it is: CVE-2021-1366 is a high-severity vulnerability in Cisco Anyconnect Secure Mobility Client, published on 17 Feb 2021. 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-2021-1366 in the wild and no public exploit code.\n\nAffected product: Cisco Anyconnect Secure Mobility Client. 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-2021-1366/ (Markdown: https://insights.sbomify.com/CVE-2021-1366/index.md)","id":"CVE-2021-1366","markdown":"https://insights.sbomify.com/CVE-2021-1366/index.md","name":"CVE-2021-1366","record":{"aliases":["GHSA-wf29-cxx3-f5h5"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Cisco AnyConnect Client","requires_auth":"low_privilege","summary":"Local attackers with valid credentials can execute arbitrary code with SYSTEM privileges via DLL hijacking if the HostScan module is installed.","user_interaction":"not_required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"anyconnect_secure_mobility_client","vendor":"cisco"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-427","name":"Uncontrolled Search Path Element"},{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to perform a DLL hijacking attack on an affected device if the VPN Posture (HostScan) Module is installed on the AnyConnect client. This vulnerability is due to insufficient validation of resources that are loaded by the application at run time. An attacker could exploit this vulnerability by sending a crafted IPC message to the AnyConnect process. A successful exploit could allow the attacker to execute arbitrary code on the affected machine with SYSTEM privileges. To exploit this vulnerability, the attacker needs valid credentials on the Windows system.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2023-09-08","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2023-09-08T09:20:20Z","kind":"github_poc","ref":"https://github.com/koztkozt/CVE-2021-1366","stars":0,"title":"Cisco AnyConnect Posture (HostScan) Local Privilege Escalation: CVE-2021-1366"}],"tier":"poc_unverified"},"has_fix":null,"headline":"Cisco AnyConnect Secure Mobility Client for Windows with VPN Posture (HostScan) Module DLL Hijacking Vulnerability","id":"CVE-2021-1366","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"cisco:anyconnect_secure_mobility_client","products":["cisco:anyconnect_secure_mobility_client"],"type":"privilege_escalation","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco NX-OS Software Protocol Independent Multicast Denial of Service Vulnerability","id":"CVE-2021-1367"},"packages":[],"prev":{"headline":"Cisco Unified Communications Manager IM \u0026 Presence Service SQL Injection Vulnerabilities","id":"CVE-2021-1365"},"products":["Cisco AnyConnect Secure Mobility Client"],"published":"2021-02-17","related":[{"cvss_score":7.8,"headline":"Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking","id":"CVE-2020-3433","kev_date_added":"2022-10-24","published":"2020-08-17"},{"cvss_score":6.5,"headline":"Cisco AnyConnect Secure Mobility Client for Windows Uncontrolled Search Path","id":"CVE-2020-3153","kev_date_added":"2022-10-24","published":"2020-02-19"},{"cvss_score":9.3,"headline":"Security feature bypass in n/a","id":"CVE-2012-3088","kev_date_added":null,"published":"2012-09-16"},{"cvss_score":9.3,"headline":"Code injection in n/a","id":"CVE-2012-2493","kev_date_added":null,"published":"2012-06-20"},{"cvss_score":9.3,"headline":"Code injection in n/a","id":"CVE-2011-2040","kev_date_added":null,"published":"2011-06-02"},{"cvss_score":7.8,"headline":"Privilege escalation in Cisco Secure Client","id":"CVE-2023-20178","kev_date_added":null,"published":"2023-06-28"}],"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":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2024-11-08","vendors":["Cisco"]},"summary":"Local attackers with valid credentials can execute arbitrary code with SYSTEM privileges via DLL hijacking if the HostScan module is installed.","url":"https://insights.sbomify.com/CVE-2021-1366/"}