{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2020-7877 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-7877 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-7877 is a high-severity memory corruption vulnerability in mastersoft ZOOKAgentSetup.exe, published on 7 Sep 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-7877 and fix it if it is affected.\n\nWhat it is: CVE-2020-7877 is a high-severity memory corruption vulnerability in mastersoft ZOOKAgentSetup.exe, published on 7 Sep 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2020-7877 in the wild and no public exploit code.\n\nAffected product: mastersoft ZOOKAgentSetup.exe. 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-2020-7877/ (Markdown: https://insights.sbomify.com/CVE-2020-7877/index.md)","id":"CVE-2020-7877","markdown":"https://insights.sbomify.com/CVE-2020-7877/index.md","name":"CVE-2020-7877","record":{"aliases":["GHSA-4p59-rrxq-mw63"],"analysis":{"component_type":"desktop_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Remote administration tool","requires_auth":"low_privilege","summary":"A buffer overflow in ZOOK remote administration tool allows attackers to execute arbitrary code via a crafted OUTERIP value.","user_interaction":"required","vuln_class":"memory_corruption"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"krcert","cpe":[{"product":"zook_agent","vendor":"mastersoft"},{"product":"zook_viewer","vendor":"mastersoft"}],"cvss":{"score":8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-120","name":"Buffer Copy without Checking Size of Input"}],"description":"A buffer overflow issue was discovered in ZOOK solution(remote administration tool) through processing 'ConnectMe' command while parsing a crafted OUTERIP value because of missing boundary check. This vulnerability allows the attacker to execute remote arbitrary command.","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":"ZOOK solution(remote administration tool) buffer overflow vulnerability","id":"CVE-2020-7877","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Code injection in VideoOffice","id":"CVE-2020-7878"},"packages":[],"prev":{"headline":"RAONWIZ DEXT5 Upload ActiveX remote file execution vulnerability","id":"CVE-2020-7875"},"products":["ZOOKAgentSetup.exe","ZOOKViewer_Setup.exe"],"published":"2021-09-07","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["mastersoft"]},"summary":"A buffer overflow in ZOOK remote administration tool allows attackers to execute arbitrary code via a crafted OUTERIP value.","url":"https://insights.sbomify.com/CVE-2020-7877/"}