{"answers":{"affected":"It affects 9 products.","exploited":"There is no known exploitation of CVE-2018-4839 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2018-4839 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-4839 is a medium-severity vulnerability in Siemens DIGSI 4, published on 8 Mar 2018. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-4839 and fix it if it is affected.\n\nWhat it is: CVE-2018-4839 is a medium-severity vulnerability in Siemens DIGSI 4, published on 8 Mar 2018. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-4839 in the wild and no public exploit code.\n\nAffected product: Siemens DIGSI 4. 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-2018-4839/ (Markdown: https://insights.sbomify.com/CVE-2018-4839/index.md)","id":"CVE-2018-4839","markdown":"https://insights.sbomify.com/CVE-2018-4839/index.md","name":"CVE-2018-4839","record":{"aliases":["GHSA-qm8x-gp66-4vfh"],"analysis":{"component_type":"ics_ot","fix_type":"upgrade","impacts":["data_read","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Siemens SIPROTEC relays","requires_auth":"low_privilege","summary":"Attackers with local access or privileged network position can reconstruct access authorization passwords due to weak cryptography in Siemens SIPROTEC relays.","user_interaction":"not_required","vuln_class":"weak_cryptography"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"siemens","cpe":[{"product":"digsi_4","vendor":"siemens"},{"product":"en100_ethernet_module_dnp3_firmware","vendor":"siemens"},{"product":"en100_ethernet_module_iec_104_firmware","vendor":"siemens"},{"product":"en100_ethernet_module_iec_61850_firmware","vendor":"siemens"},{"product":"en100_ethernet_module_modbus_tcp_firmware","vendor":"siemens"},{"product":"en100_ethernet_module_profinet_io_firmware","vendor":"siemens"},{"product":"siprotec_4_7sj66_firmware","vendor":"siemens"},{"product":"siprotec_compact_7sj80_firmware","vendor":"siemens"},{"product":"siprotec_compact_7sk80_firmware","vendor":"siemens"}],"cvss":{"score":5.3,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N","version":"3.0"},"cwes":[{"id":"CWE-326","name":"Inadequate Encryption Strength"}],"description":"A vulnerability has been identified in DIGSI 4 (All versions \u003c V4.92), EN100 Ethernet module DNP3 variant (All versions \u003c V1.05.00), EN100 Ethernet module IEC 104 variant (All versions), EN100 Ethernet module IEC 61850 variant (All versions \u003c V4.30), EN100 Ethernet module Modbus TCP variant (All versions), EN100 Ethernet module PROFINET IO variant (All versions), Other SIPROTEC 4 relays (All versions), Other SIPROTEC Compact relays (All versions), SIPROTEC 4 7SD80 (All versions \u003c V4.70), SIPROTEC 4 7SJ61 (All versions \u003c V4.96), SIPROTEC 4 7SJ62 (All versions \u003c V4.96), SIPROTEC 4 7SJ64 (All versions \u003c V4.96), SIPROTEC 4 7SJ66 (All versions \u003c V4.30), SIPROTEC Compact 7SJ80 (All versions \u003c V4.77), SIPROTEC Compact 7SK80 (All versions \u003c V4.77). An attacker with local access to the engineering system or in a privileged network position and able to obtain certain network traffic could possibly reconstruct access authorization passwords.","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":"Weak cryptography in DIGSI 4","id":"CVE-2018-4839","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"weak_cryptography","year":"2018"},"n_packages":0,"n_references":1,"next":{"headline":"Missing authorization in DIGSI 4","id":"CVE-2018-4840"},"packages":[],"prev":{"headline":"Missing authorization in EN100 Ethernet module DNP3 variant","id":"CVE-2018-4838"},"products":["DIGSI 4","EN100 Ethernet module DNP3 variant","EN100 Ethernet module IEC 104 variant","EN100 Ethernet module IEC 61850 variant","EN100 Ethernet module Modbus TCP variant","EN100 Ethernet module PROFINET IO variant","Other SIPROTEC 4 relays","Other SIPROTEC Compact relays","SIPROTEC 4 7SD80","SIPROTEC 4 7SJ61","SIPROTEC 4 7SJ62","SIPROTEC 4 7SJ64","SIPROTEC 4 7SJ66","SIPROTEC Compact 7SJ80","SIPROTEC Compact 7SK80"],"published":"2018-03-08","related":[{"cvss_score":7.8,"headline":"Privilege escalation in DIGSI 4","id":"CVE-2020-25245","kev_date_added":null,"published":"2021-02-09"},{"cvss_score":7.5,"headline":"Missing authorization in DIGSI 4","id":"CVE-2018-4840","kev_date_added":null,"published":"2018-03-08"}],"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":"2024-08-05","vendors":["Siemens"]},"summary":"Attackers with local access or privileged network position can reconstruct access authorization passwords due to weak cryptography in Siemens SIPROTEC relays.","url":"https://insights.sbomify.com/CVE-2018-4839/"}