CWE-331

Insufficient Entropy

The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others.

CVE-2012-4687 (GCVE-0-2012-4687)
Vulnerability from cvelistv5
Published
2012-12-08 15:00
Modified
2025-07-09 18:27
Severity ?
CWE
Summary
Post Oak AWAM Bluetooth Reader Traffic System does not use a sufficient source of entropy for private keys, which makes it easier for man-in-the-middle attackers to spoof a device by predicting a key value.
References
Impacted products
Vendor Product Version
Post Oak Traffic Systems AWAM Bluetooth Reader Traffic System Version: All versions
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2017-13992 (GCVE-0-2017-13992)
Vulnerability from cvelistv5
Published
2017-10-05 21:00
Modified
2024-08-05 19:13
Severity ?
CWE
Summary
An Insufficient Entropy issue was discovered in LOYTEC LVIS-3ME versions prior to 6.2.0. The application does not utilize sufficiently random number generation for the web interface authentication mechanism, which could allow remote code execution.
References
Impacted products
Vendor Product Version
n/a LOYTEC LVIS-3ME Version: LOYTEC LVIS-3ME
Show details on NVD website

To clipboard 

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CVE-2017-2625 (GCVE-0-2017-2625)
Vulnerability from cvelistv5
Published
2018-07-27 18:00
Modified
2024-08-05 14:02
Severity ?
6.5 (Medium) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE
Summary
It was discovered that libXdmcp before 1.1.2 including used weak entropy to generate session keys. On a multi-user system using xdmcp, a local attacker could potentially use information available from the process list to brute force the key, allowing them to hijack other users' sessions.
References
Impacted products
Vendor Product Version
Xorg libXdmcp Version: 1.1.2
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2017-2626 (GCVE-0-2017-2626)
Vulnerability from cvelistv5
Published
2018-07-27 19:00
Modified
2024-08-05 14:02
Severity ?
5.2 (Medium) - CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:L
CWE
Summary
It was discovered that libICE before 1.0.9-8 used a weak entropy to generate keys. A local attacker could potentially use this flaw for session hijacking using the information available from the process list.
References
Impacted products
Vendor Product Version
Xorg libICE Version: 1.0.9-8
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2020-1773 (GCVE-0-2020-1773)
Vulnerability from cvelistv5
Published
2020-03-27 12:47
Modified
2024-09-16 23:27
Severity ?
7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CWE
Summary
An attacker with the ability to generate session IDs or password reset tokens, either by being able to authenticate or by exploiting OSA-2020-09, may be able to predict other users session IDs, password reset tokens and automatically generated passwords. This issue affects ((OTRS)) Community Edition: 5.0.41 and prior versions, 6.0.26 and prior versions. OTRS; 7.0.15 and prior versions.
References
Impacted products
Vendor Product Version
OTRS AG ((OTRS)) Community Edition Version: 5.0.41 and prior
Version: 6.0.26 and prior
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2020-29505 (GCVE-0-2020-29505)
Vulnerability from cvelistv5
Published
2022-07-11 19:25
Modified
2024-09-16 22:09
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE
Summary
Dell BSAFE Crypto-C Micro Edition, versions before 4.1.5, and Dell BSAFE Micro Edition Suite, versions before 4.5.2, contain a Key Management Error Vulnerability.
References
Impacted products
Vendor Product Version
Dell Dell BSAFE Crypto-C Micro Edition Version: unspecified   < 4.1.5 and 4.6
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2020-29508 (GCVE-0-2020-29508)
Vulnerability from cvelistv5
Published
2022-07-11 19:25
Modified
2024-09-16 16:13
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
Summary
Dell BSAFE Crypto-C Micro Edition, versions before 4.1.5, and Dell BSAFE Micro Edition Suite, versions before 4.6, contain an Improper Input Validation Vulnerability.
References
Impacted products
Vendor Product Version
Dell Dell BSAFE Micro Edition Suite Version: unspecified   < 4.1.5 / 4.6
 Create a notification for this product.
Show details on NVD website

To clipboard 

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CVE-2021-22727 (GCVE-0-2021-22727)
Vulnerability from cvelistv5
Published
2021-07-21 10:43
Modified
2024-08-03 18:51
Severity ?
CWE
Summary
A CWE-331: Insufficient Entropy vulnerability exists in EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1 ) that could allow an attacker to gain unauthorized access to the charging station web server
References
Impacted products
Vendor Product Version
n/a EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1 ) Version: EVlink City (EVC1S22P4 / EVC1S7P4 all versions prior to R8 V3.4.0.1), EVlink Parking (EVW2 / EVF2 / EV.2 all versions prior to R8 V3.4.0.1), and EVlink Smart Wallbox (EVB1A all versions prior to R8 V3.4.0.1 )
Show details on NVD website

To clipboard 

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CVE-2021-3505 (GCVE-0-2021-3505)
Vulnerability from cvelistv5
Published
2021-04-19 20:22
Modified
2024-08-03 16:53
Severity ?
CWE
Summary
A flaw was found in libtpms in versions before 0.8.0. The TPM 2 implementation returns 2048 bit keys with ~1984 bit strength due to a bug in the TCG specification. The bug is in the key creation algorithm in RsaAdjustPrimeCandidate(), which is called before the prime number check. The highest threat from this vulnerability is to data confidentiality.
References
Impacted products
Vendor Product Version
n/a libtpms Version: libtpms 0.8.0
Show details on NVD website

To clipboard 

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CVE-2021-36294 (GCVE-0-2021-36294)
Vulnerability from cvelistv5
Published
2022-01-25 22:15
Modified
2024-09-16 16:22
Severity ?
9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
Summary
Dell VNX2 OE for File versions 8.1.21.266 and earlier, contain an authentication bypass vulnerability. A remote unauthenticated attacker may exploit this vulnerability by forging a cookie to login as any user.
References
Impacted products
Vendor Product Version
Dell VNX Control Station Version: unspecified   < TBD
 Create a notification for this product.
Show details on NVD website

To clipboard 

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Mitigation

Phase: Implementation

Description:

  • Determine the necessary entropy to adequately provide for randomness and predictability. This can be achieved by increasing the number of bits of objects such as keys and seeds.
CAPEC-59: Session Credential Falsification through Prediction

This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

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