CVE-2020-28388
Description
A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions < V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.20), Nucleus NET (All versions < V5.2), Nucleus ReadyStart V3 (All versions < V2012.12), Nucleus Source Code (All versions), PLUSCONTROL 1st Gen (All versions), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). Initial Sequence Numbers (ISNs) for TCP connections are derived from an insufficiently random source. As a result, the ISN of current and future TCP connections could be predictable. An attacker could hijack existing sessions or spoof future ones.
How to fix
- siemens nucleus_net5.2 or later
- siemens nucleus_readystart2012.12 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| siemens nucleus_net | v < 5.2 | 5.2 |
| siemens capital_vstar | No range specified | — |
| siemens nucleus_source_code | No range specified | — |
| siemens pluscontrol_1st_gen | No range specified | — |
| siemens nucleus_readystart | v < 2012.12 | 2012.12 |
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Attack Surface Management
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