{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-1718 exists.","fix":"No fix has been published for CVE-2023-1718 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-1718 is a high-severity denial of service vulnerability in Bitrix24, published on 1 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-1718 and fix it if it is affected.\n\nWhat it is: CVE-2023-1718 is a high-severity denial of service vulnerability in Bitrix24, published on 1 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-1718 exists.\n\nAffected product: Bitrix24. 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-2023-1718/ (Markdown: https://insights.sbomify.com/CVE-2023-1718/index.md)","id":"CVE-2023-1718","markdown":"https://insights.sbomify.com/CVE-2023-1718/index.md","name":"CVE-2023-1718","record":{"aliases":["GHSA-qx86-33ww-3474"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Bitrix24 web application","requires_auth":"none","summary":"Unauthenticated attackers can cause denial of service in Bitrix24 by exploiting improper file stream access in the upload endpoint.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"STAR_Labs","cpe":[{"product":"bitrix24","vendor":"bitrix24"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"}],"description":"Improper file stream access in /desktop_app/file.ajax.php?action=uploadfile in Bitrix24 22.0.300 allows unauthenticated remote attackers to cause denial-of-service via a crafted \"tmp_url\".","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2023-11-08","github_poc":1,"max_poc_stars":4,"metasploit":0,"nuclei":0,"refs":[{"date":"2023-11-08T07:45:54Z","kind":"github_poc","ref":"https://github.com/jhonnybonny/Bitrix24DoS","stars":4,"title":"This Python script is designed to exploit a security vulnerability in Bitrix24, leading to a Denial of Service (DoS) attack. The vulnerability, identified as CVE-2023-1718, allows an attacker to disrupt the normal operation of a Bitrix24 instance."}],"tier":"weaponised"},"has_fix":null,"headline":"Bitrix24 Denial-of-Service (DoS) via Improper File Stream Access","id":"CVE-2023-1718","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":1,"next":{"headline":"Bitrix24 Insecure Global Variable Extraction","id":"CVE-2023-1719"},"packages":[],"prev":{"headline":"Bitrix24 Cross-Site Scripting (XSS) via Client-side Prototype Pollution","id":"CVE-2023-1717"},"products":["Bitrix24"],"published":"2023-11-01","related":[{"cvss_score":9.8,"headline":"Code injection in n/a","id":"CVE-2022-27228","kev_date_added":null,"published":"2022-03-22"},{"cvss_score":9.8,"headline":"Server-side request forgery in n/a","id":"CVE-2020-13484","kev_date_added":null,"published":"2020-06-24"},{"cvss_score":9.6,"headline":"Bitrix24 Cross-Site Scripting (XSS) via Client-side Prototype Pollution","id":"CVE-2023-1717","kev_date_added":null,"published":"2023-11-01"},{"cvss_score":9.6,"headline":"Bitrix24 Stored Cross-Site Scripting (XSS) via File Upload","id":"CVE-2023-1720","kev_date_added":null,"published":"2023-11-01"},{"cvss_score":9,"headline":"Bitrix24 Stored Cross-Site Scripting (XSS) via Improper Input Neutralization on Invoice Edit Page (1 of 2)","id":"CVE-2023-1715","kev_date_added":null,"published":"2023-11-01"},{"cvss_score":9,"headline":"Bitrix24 Stored Cross-Site Scripting (XSS) via Improper Input Neutralization on Invoice Edit Page (2 of 2)","id":"CVE-2023-1716","kev_date_added":null,"published":"2023-11-01"},{"cvss_score":8.8,"headline":"Bitrix24 Remote Command Execution (RCE) via Insecure Temporary File Creation","id":"CVE-2023-1713","kev_date_added":null,"published":"2023-11-01"}],"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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-09-05","vendors":["Bitrix24"]},"summary":"Unauthenticated attackers can cause denial of service in Bitrix24 by exploiting improper file stream access in the upload endpoint.","url":"https://insights.sbomify.com/CVE-2023-1718/"}