{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2023-27334 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-27334 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-27334 is a high-severity denial of service vulnerability in Softing edgeConnector Siemens, published on 3 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-27334 and fix it if it is affected.\n\nWhat it is: CVE-2023-27334 is a high-severity denial of service vulnerability in Softing edgeConnector Siemens, published on 3 May 2024. 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-2023-27334 in the wild and no public exploit code.\n\nAffected product: Softing edgeConnector Siemens. 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-2023-27334/ (Markdown: https://insights.sbomify.com/CVE-2023-27334/index.md)","id":"CVE-2023-27334","markdown":"https://insights.sbomify.com/CVE-2023-27334/index.md","name":"CVE-2023-27334","record":{"aliases":["GHSA-xf44-g8mj-xfg3"],"analysis":{"component_type":"ics_ot","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Siemens edgeConnector","requires_auth":"none","summary":"Remote attackers can cause denial of service in Softing edgeConnector Siemens by exhausting resources via OPC UA ConditionRefresh requests.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"zdi","cpe":[{"product":"edgeaggregator","vendor":"softing"},{"product":"edgeconnector","vendor":"softing"},{"product":"opc_ua_c\\+\\+_software_development_kit","vendor":"softing"},{"product":"secure_integration_server","vendor":"softing"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.0"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"Softing edgeConnector Siemens ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Softing edgeConnector Siemens. Authentication is not required to exploit this vulnerability.\n\nThe specific flaw exists within the handling of OPC UA ConditionRefresh requests. By sending a large number of requests, an attacker can consume all available resources on the server. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20498.","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":"Softing edgeConnector Siemens ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability","id":"CVE-2023-27334","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2023"},"n_packages":0,"n_references":2,"next":{"headline":"Softing edgeAggregator Client Cross-Site Scripting Remote Code Execution Vulnerability","id":"CVE-2023-27335"},"packages":[],"prev":{"headline":"TP-Link Archer AX21 tmpServer Command 0x422 Stack-based Buffer Overflow Remote Code Execution Vulnerability","id":"CVE-2023-27333"},"products":["edgeConnector Siemens"],"published":"2024-05-03","related":[{"cvss_score":9.8,"headline":"Softing Secure Integration Server Improper Authentication","id":"CVE-2022-2336","kev_date_added":null,"published":"2022-08-17"},{"cvss_score":8.8,"headline":"Softing edgeAggregator Client Cross-Site Scripting Remote Code Execution Vulnerability","id":"CVE-2023-27335","kev_date_added":null,"published":"2024-05-03"},{"cvss_score":8,"headline":"Cleartext Transmission of Sensitive Information in Softing edgeConnector and edgeAggregator","id":"CVE-2024-0860","kev_date_added":null,"published":"2024-03-14"},{"cvss_score":7.5,"headline":"Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability","id":"CVE-2023-27336","kev_date_added":null,"published":"2024-05-03"},{"cvss_score":7.5,"headline":"Softing edgeAggregator Permissive Cross-domain Policy with Untrusted Domains Remote Code Execution Vulnerability","id":"CVE-2023-38125","kev_date_added":null,"published":"2024-05-03"},{"cvss_score":7.5,"headline":"Memory corruption in n/a","id":"CVE-2022-37453","kev_date_added":null,"published":"2022-10-20"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-08-02","vendors":["Softing"]},"summary":"Remote attackers can cause denial of service in Softing edgeConnector Siemens by exhausting resources via OPC UA ConditionRefresh requests.","url":"https://insights.sbomify.com/CVE-2023-27334/"}