{"answers":{"affected":"3 open source packages ship an affected version, including impacket. It affects 2 products.","exploited":"There is no known exploitation of CVE-2021-31800 in the wild and no public exploit code.","fix":"Upgrade impacket to 0.9.23 or later.","what":"CVE-2021-31800 is a critical path traversal vulnerability in Fedoraproject Fedora, published on 5 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-31800 and fix it if it is affected.\n\nWhat it is: CVE-2021-31800 is a critical path traversal vulnerability in Fedoraproject Fedora, published on 5 May 2021. 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-2021-31800 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- impacket (PyPI): affected all versions; fixed in 0.9.23\n- impacket (PyPI): affected all versions; fixed in 0.9.23\n- impacket (PyPI): affected from 0.9.10; fixed in 0.9.23\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-2021-31800/ (Markdown: https://insights.sbomify.com/CVE-2021-31800/index.md)","id":"CVE-2021-31800","markdown":"https://insights.sbomify.com/CVE-2021-31800/index.md","name":"CVE-2021-31800","record":{"aliases":["DEBIAN-CVE-2021-31800","GHSA-mj63-64x7-57xf","PYSEC-2021-17","UBUNTU-CVE-2021-31800","openSUSE-SU-2024:11232-1","openSUSE-SU-2024:14142-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Impacket Python library","requires_auth":"none","summary":"Attackers can traverse directories to read or write arbitrary files, potentially achieving code execution by modifying system files like SSH keys.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"fedora","vendor":"fedoraproject"},{"product":"impacket","vendor":"secureauth"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"Multiple path traversal vulnerabilities exist in smbserver.py in Impacket through 0.9.22. An attacker that connects to a running smbserver instance can list and write to arbitrary files via ../ directory traversal. This could potentially be abused to achieve arbitrary code execution by replacing /etc/shadow or an SSH authorized key.","ecosystems":["PyPI","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":"2022-08-28","github_poc":2,"max_poc_stars":11,"metasploit":0,"nuclei":0,"refs":[{"date":"2022-08-28T19:04:46Z","kind":"github_poc","ref":"https://github.com/p0dalirius/CVE-2021-31800-Impacket-SMB-Server-Arbitrary-file-read-write","stars":11,"title":"A path traversal in smbserver.py allows an attacker to read/write arbitrary files on the server."},{"date":"2022-09-02T09:02:19Z","kind":"github_poc","ref":"https://github.com/Louzogh/CVE-2021-31800","stars":2,"title":"CVE-2021-31800 POC"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Path traversal in impacket","id":"CVE-2021-31800","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":"fedoraproject:fedora","products":["fedoraproject:fedora"],"type":"path_traversal","year":"2021"},"n_packages":4,"n_references":9,"next":{"headline":"Memory corruption in n/a","id":"CVE-2021-31802"},"packages":[{"ecosystem":"PyPI","fixed":["0.9.23"],"introduced":["0"],"last_affected":[],"package":"impacket","purl":null,"source":"GHSA-mj63-64x7-57xf"},{"ecosystem":"PyPI","fixed":["0.9.23"],"introduced":["0"],"last_affected":[],"package":"impacket","purl":"pkg:pypi/impacket","source":"GHSA-mj63-64x7-57xf"},{"ecosystem":"PyPI","fixed":["0.9.23"],"introduced":["0.9.10"],"last_affected":[],"package":"impacket","purl":"pkg:pypi/impacket","source":"PYSEC-2021-17"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["0.11.0-3.3"],"introduced":["0"],"last_affected":[],"package":"python-impacket","purl":"pkg:rpm/opensuse/python-impacket\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2024:14142-1"}],"prev":{"headline":"Arbitrary Code Execution in Rdoc","id":"CVE-2021-31799"},"products":["n/a"],"published":"2021-05-05","related":[{"cvss_score":9.8,"headline":"PHP-CGI OS Command Injection","id":"CVE-2024-4577","kev_date_added":"2024-06-12","published":"2024-06-09"},{"cvss_score":9.8,"headline":"Grafana Authentication Bypass","id":"CVE-2021-39226","kev_date_added":"2022-08-25","published":"2021-10-05"},{"cvss_score":9.8,"headline":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow","id":"CVE-2019-5544","kev_date_added":"2021-11-03","published":"2019-12-06"},{"cvss_score":9.6,"headline":"Google Chromium V8 Type Confusion","id":"CVE-2024-4947","kev_date_added":"2024-05-20","published":"2024-05-15"},{"cvss_score":9.6,"headline":"Google Chromium Visuals Use-After-Free","id":"CVE-2024-4671","kev_date_added":"2024-05-13","published":"2024-05-09"},{"cvss_score":9.6,"headline":"Google Chromium Mojo Insufficient Data Validation","id":"CVE-2022-3075","kev_date_added":"2022-09-08","published":"2022-09-26"},{"cvss_score":9.6,"headline":"Google Chromium Indexed DB API Use-After-Free","id":"CVE-2021-30633","kev_date_added":"2021-11-03","published":"2021-10-08"}],"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":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attackers can traverse directories to read or write arbitrary files, potentially achieving code execution by modifying system files like SSH keys.","url":"https://insights.sbomify.com/CVE-2021-31800/"}