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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Current 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.
A vulnerability has been identified in Capital VSTAR (All versions), Nucleus NET (All versions < V5.2), Nucleus ReadyStart V3 (All versions < V2012.12), Nucleus Source Code (All versions), PLUSCONTROL 1st Gen (All versions). 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.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: It is possible that the NVD CVSS may not match that of the CNA. The most common reason for this is that publicly available information does not provide sufficient detail or that information simply was not available at the time the CVSS vector string was assigned.
NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.
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A vulnerability has been identified in APOGEE PXC Series (BACnet) (All versions < V3.5.5), APOGEE PXC Series (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 Series (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
A vulnerability has been identified in Capital VSTAR (All versions), Nucleus NET (All versions < V5.2), Nucleus ReadyStart V3 (All versions < V2012.12), Nucleus Source Code (All versions), PLUSCONTROL 1st Gen (All versions). 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.
A vulnerability has been identified in APOGEE PXC Series (BACnet) (All versions < V3.5.5), APOGEE PXC Series (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 Series (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
A vulnerability has been identified in Nucleus NET (All versions < V5.2), Nucleus ReadyStart for ARM, MIPS, and PPC (All versions < V2012.12), PLUSCONTROL 1st Gen (All versions). 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.
A vulnerability has been identified in Capital VSTAR (All versions), Nucleus NET (All versions < V5.2), Nucleus ReadyStart V3 (All versions < V2012.12), Nucleus Source Code (All versions), PLUSCONTROL 1st Gen (All versions). 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.
CVE Modified by Siemens AG11/09/2021 8:16:05 PM
Action
Type
Old Value
New Value
Changed
Description
A vulnerability has been identified in Capital VSTAR (All versions), Nucleus NET (All versions < V5.2), Nucleus ReadyStart V3 (All versions < V2012.12), Nucleus Source Code (All versions), PLUSCONTROL 1st Gen (All versions). 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.
A vulnerability has been identified in Nucleus NET (All versions < V5.2), Nucleus ReadyStart for ARM, MIPS, and PPC (All versions < V2012.12), PLUSCONTROL 1st Gen (All versions). 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.
Modified Analysis by NIST11/09/2021 4:22:29 PM
Action
Type
Old Value
New Value
Changed
CPE Configuration
OR
*cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:* versions up to (excluding) 5.2
OR
*cpe:2.3:a:siemens:capital_vstar:*:*:*:*:*:*:*:*
*cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:* versions up to (excluding) 5.2
*cpe:2.3:a:siemens:nucleus_source_code:*:*:*:*:*:*:*:*
*cpe:2.3:a:siemens:pluscontrol_1st_gen:*:*:*:*:*:*:*:*
Changed
Reference Type
https://cert-portal.siemens.com/productcert/pdf/ssa-344238.pdf No Types Assigned
A vulnerability has been identified in Nucleus NET (All versions < V5.2), Nucleus ReadyStart for ARM, MIPS, and PPC (All versions < V2012.12), PLUSCONTROL 1st Gen (All versions). 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.
A vulnerability has been identified in Capital VSTAR (All versions), Nucleus NET (All versions < V5.2), Nucleus ReadyStart V3 (All versions < V2012.12), Nucleus Source Code (All versions), PLUSCONTROL 1st Gen (All versions). 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.
CVE Modified by Siemens AG3/15/2021 1:15:20 PM
Action
Type
Old Value
New Value
Changed
Description
A vulnerability has been identified in Nucleus NET (All versions < V5.2), Nucleus ReadyStart for ARM, MIPS, and PPC (All versions < V2012.12). 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.
A vulnerability has been identified in Nucleus NET (All versions < V5.2), Nucleus ReadyStart for ARM, MIPS, and PPC (All versions < V2012.12), PLUSCONTROL 1st Gen (All versions). 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.
AND
OR
*cpe:2.3:a:siemens:nucleus_readystart:*:*:*:*:*:*:*:* versions up to (excluding) 2012.12
OR
cpe:2.3:h:arm:arm:-:*:*:*:*:*:*:*
cpe:2.3:h:mips:mips:-:*:*:*:*:*:*:*
cpe:2.3:h:powerpc_project:powerpc:-:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:a:siemens:nucleus_net:*:*:*:*:*:*:*:* versions up to (excluding) 5.2
Added
CVSS V2
NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
Added
CVSS V3.1
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Added
CWE
NIST NVD-CWE-Other
Changed
Reference Type
https://cert-portal.siemens.com/productcert/pdf/ssa-362164.pdf No Types Assigned
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