CVE-2020-27632
Summary
| CVE | CVE-2020-27632 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-03-10 18:15:00 UTC |
| Updated | 2023-10-10 17:15:00 UTC |
| Description | In SIMATIC MV400 family versions prior to v7.0.6, the ISN generator is initialized with a constant value and has constant increments. An attacker could predict and hijack TCP sessions. |
Risk And Classification
Problem Types: NVD-CWE-noinfo
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Hardware | Siemens | Simatic Mv420 | - | All | All | All |
| Operating System | Siemens | Simatic Mv420 Firmware | All | All | All | All |
| Hardware | Siemens | Simatic Mv440 | - | All | All | All |
| Operating System | Siemens | Simatic Mv440 Firmware | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Multiple Embedded TCP/IP Stacks (Update B) | CISA | MISC | www.cisa.gov | |
| cert-portal.siemens.com/productcert/pdf/ssa-599268.pdf | CONFIRM | cert-portal.siemens.com | |
| 403 Forbidden | MISC | www.forescout.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 590672 Siemens Transmission Control Protocol (TCP) Stack SIMATIC MV400 Multiple Vulnerabilities (ICSA-21-068-07)