{"id":"CVE-2024-47945","aliases":["EUVD-2024-42737","GHSA-3qfw-5g24-8pmq"],"status":"published","title":"Predictable Session ID","description":"The devices are vulnerable to session hijacking due to insufficient \nentropy in its session ID generation algorithm. The session IDs are \npredictable, with only 32,768 possible values per user, which allows \nattackers to pre-generate valid session IDs, leading to unauthorized \naccess to user sessions. This is not only due to the use of an \n(insecure) rand() function call but also because of missing \ninitialization via srand(). As a result only the PIDs are effectively \nused as seed.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00868,"percentile":0.5923,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-331","CWE-340"],"published":"2024-10-15T10:05:58Z","modified":"2026-06-17T07:58:02Z","products":[{"vendor":"rittal","product":"cmc_iii_processing_units_firmware"},{"vendor":"rittal","product":"iot_interface_firmware"},{"vendor":"rittal gmbh \u0026 co. kg","product":"iot interface \u0026 cmc iii processing unit"},{"vendor":"rittal_gmbh_and_co.kg","product":"iot_interface_and_cmc_iii_processing_unit"}],"references":[{"url":"https://r.sec-consult.com/rittaliot","tags":["third-party-advisory","Exploit","Third Party Advisory"]},{"url":"https://www.rittal.com/de-de/products/deep/3124300","tags":["patch","Product"]},{"url":"http://seclists.org/fulldisclosure/2024/Oct/4"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-47945"},{"url":"https://github.com/advisories/GHSA-3qfw-5g24-8pmq"}],"sources":{"cve":[{"id":"CVE-2024-47945","title":"Predictable Session ID","description":"The devices are vulnerable to session hijacking due to insufficient \nentropy in its session ID generation algorithm. The session IDs are \npredictable, with only 32,768 possible values per user, which allows \nattackers to pre-generate valid session IDs, leading to unauthorized \naccess to user sessions. This is not only due to the use of an \n(insecure) rand() function call but also because of missing \ninitialization via srand(). As a result only the PIDs are effectively \nused as seed.","status":"published","published":"2024-10-15T10:05:58.333Z","modified":"2025-11-03T22:21:56.044Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"adp"}],"cwes":["CWE-340"],"updated_at":"2026-11-02T14:33:57.638551Z"}],"euvd":[{"id":"EUVD-2024-42737","description":"The devices are vulnerable to session hijacking due to insufficient \nentropy in its session ID generation algorithm. The session IDs are \npredictable, with only 32,768 possible values per user, which allows \nattackers to pre-generate valid session IDs, leading to unauthorized \naccess to user sessions. This is not only due to the use of an \n(insecure) rand() function call but also because of missing \ninitialization via srand(). As a result only the PIDs are effectively \nused as seed.","status":"published","published":"2024-10-15T10:05:58Z","modified":"2025-11-03T22:21:56Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"updated_at":"2026-11-02T19:49:29.890052Z"}],"ghsa":[{"id":"GHSA-3qfw-5g24-8pmq","title":"The devices are vulnerable to session hijacking due to insufficient \nentropy in its session ID...","description":"The devices are vulnerable to session hijacking due to insufficient \nentropy in its session ID generation algorithm. The session IDs are \npredictable, with only 32,768 possible values per user, which allows \nattackers to pre-generate valid session IDs, leading to unauthorized \naccess to user sessions. This is not only due to the use of an \n(insecure) rand() function call but also because of missing \ninitialization via srand(). As a result only the PIDs are effectively \nused as seed.","status":"published","published":"2024-10-15T12:30:36Z","modified":"2025-11-04T00:31:34Z","cvss":[{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical"}],"cwes":["CWE-331","CWE-340"],"updated_at":"2026-11-02T15:04:28.99549Z"}],"nvd":[{"id":"CVE-2024-47945","description":"The devices are vulnerable to session hijacking due to insufficient \nentropy in its session ID generation algorithm. The session IDs are \npredictable, with only 32,768 possible values per user, which allows \nattackers to pre-generate valid session IDs, leading to unauthorized \naccess to user sessions. This is not only due to the use of an \n(insecure) rand() function call but also because of missing \ninitialization via srand(). As a result only the PIDs are effectively \nused as seed.","status":"published","published":"2024-10-15T10:15:03.973Z","modified":"2026-06-17T07:58:02.697Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"critical","assessor":"secondary"}],"cwes":["CWE-340","CWE-331"],"updated_at":"2026-11-02T14:10:31.879321Z"}]}}