CWE-342
Predictable Exact Value from Previous Values
An exact value or random number can be precisely predicted by observing previous values.
CVE-2020-16226 (GCVE-0-2020-16226)
Vulnerability from cvelistv5
Published
2020-10-05 17:19
Modified
2024-09-17 00:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-342 - PREDICTABLE EXACT VALUE FROM PREVIOUS VALUES
Summary
Multiple Mitsubishi Electric products are vulnerable to impersonations of a legitimate device by a malicious actor, which may allow an attacker to remotely execute arbitrary commands.
References
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Impacted products
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| ► | Mitsubishi Electric | QJ71MES96 |
Version: all versions |
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CVE-2020-28388 (GCVE-0-2020-28388)
Vulnerability from cvelistv5
Published
2021-02-09 00:00
Modified
2024-08-04 16:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-342 - Predictable Exact Value from Previous Values
Summary
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.
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ► | Siemens | APOGEE PXC Compact (BACnet) |
Version: All versions < V3.5.5 |
||||||||||||||||||||||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2022-27577 (GCVE-0-2022-27577)
Vulnerability from cvelistv5
Published
2022-04-11 19:37
Modified
2024-08-03 05:32
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
The vulnerability in the MSC800 in all versions before 4.15 allows for an attacker to predict the TCP initial sequence number. When the TCP sequence is predictable, an attacker can send packets that are forged to appear to come from a trusted computer. These forged packets could compromise services on the MSC800. SICK has released a new firmware version of the SICK MSC800 and recommends updating to the newest version.
References
| ► | URL | Tags | |||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| n/a | SICK MSC800 |
Version: All versions before 4.15 |
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CVE-2022-29930 (GCVE-0-2022-29930)
Vulnerability from cvelistv5
Published
2022-05-12 08:35
Modified
2024-08-03 06:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-342 - Predictable Exact Value from Previous Values
Summary
SHA1 implementation in JetBrains Ktor Native 2.0.0 was returning the same value. The issue was fixed in Ktor version 2.0.1.
References
| ► | URL | Tags | ||||||
|---|---|---|---|---|---|---|---|---|
|
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CVE-2023-3373 (GCVE-0-2023-3373)
Vulnerability from cvelistv5
Published
2023-08-03 23:44
Modified
2025-02-27 21:11
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-342 - Predictable Exact Value from Previous Values
Summary
Predictable Exact Value from Previous Values vulnerability in Mitsubishi Electric Corporation GOT2000 Series GT21 model versions 01.49.000 and prior and GOT SIMPLE Series GS21 model versions 01.49.000 and prior allows a remote unauthenticated attacker to hijack data connections (session hijacking) or prevent legitimate users from establishing data connections (to cause DoS condition) by guessing the listening port of the data connection on FTP server and connecting to it.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| ► | Mitsubishi Electric Corporation | GOT2000 Series GT21 model |
Version: 01.49.000 and prior |
||||||
|
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Mitigation
Phases:
Description:
- Increase the entropy used to seed a PRNG.
Mitigation ID: MIT-2
Phases: Architecture and Design, Requirements
Strategy: Libraries or Frameworks
Description:
- Use products or modules that conform to FIPS 140-2 [REF-267] to avoid obvious entropy problems. Consult FIPS 140-2 Annex C ("Approved Random Number Generators").
Mitigation ID: MIT-50
Phase: Implementation
Description:
- Use a PRNG that periodically re-seeds itself using input from high-quality sources, such as hardware devices with high entropy. However, do not re-seed too frequently, or else the entropy source might block.
No CAPEC attack patterns related to this CWE.