Common Weakness Enumeration
CWE-338
AllowedUse of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Abstraction: Base · Status: Draft
The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong.
149 vulnerabilities reference this CWE, most recent first.
CVE-2021-3678 (GCVE-0-2021-3678)
Vulnerability from cvelistv5 – Published: 2021-08-04 13:14 – Updated: 2024-08-03 17:01
VLAI
EPSS
VEX
Title
Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in star7th/showdoc
Summary
showdoc is vulnerable to Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Severity
7.5 (High)
CWE
- CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Assigner
@huntrdev
CNA
References
2 references
| URL | Tags |
|---|---|
| https://huntr.dev/bounties/f9a9defd-29ea-4442-b69… | x_refsource_CONFIRM |
| https://github.com/star7th/showdoc/commit/4b962c1… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| star7th | star7th/showdoc |
Affected:
unspecified , ≤ 2.9.7
(custom)
|
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CVE-2021-3538 (GCVE-0-2021-3538)
Vulnerability from cvelistv5 – Published: 2021-06-02 13:22 – Updated: 2024-08-03 17:01
VLAI
EPSS
VEX
Summary
A flaw was found in github.com/satori/go.uuid in versions from commit 0ef6afb2f6cdd6cdaeee3885a95099c63f18fc8c to d91630c8510268e75203009fe7daf2b8e1d60c45. Due to insecure randomness in the g.rand.Read function the generated UUIDs are predictable for an attacker.
Severity
No CVSS data available.
CWE
Assigner
redhat
CNA
References
3 references
| URL | Tags |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1954376 | x_refsource_MISC |
| https://github.com/satori/go.uuid/issues/73 | x_refsource_MISC |
| https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMSATORIG… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | satori/go.uuid |
Affected:
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CVE-2021-3047 (GCVE-0-2021-3047)
Vulnerability from cvelistv5 – Published: 2021-08-11 17:10 – Updated: 2024-09-17 02:32
VLAI
EPSS
VEX
Title
PAN-OS: Weak Cryptography Used in Web Interface Authentication
Summary
A cryptographically weak pseudo-random number generator (PRNG) is used during authentication to the Palo Alto Networks PAN-OS web interface. This enables an authenticated attacker, with the capability to observe their own authentication secrets over a long duration on the PAN-OS appliance, to impersonate another authenticated web interface administrator's session. This issue impacts: PAN-OS 8.1 versions earlier than PAN-OS 8.1.19; PAN-OS 9.0 versions earlier than PAN-OS 9.0.14; PAN-OS 9.1 versions earlier than PAN-OS 9.1.10; PAN-OS 10.0 versions earlier than PAN-OS 10.0.4. PAN-OS 10.1 versions are not impacted.
Severity
4.2 (Medium)
CWE
- CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Assigner
palo_alto
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://security.paloaltonetworks.com/CVE-2021-3047 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Palo Alto Networks | PAN-OS |
Unaffected:
10.1.*
Affected: 8.1 , < 8.1.19 (custom) Affected: 9.0 , < 9.0.14 (custom) Affected: 10.0 , < 10.0.4 (custom) Affected: 9.1 , < 9.1.10 (custom) |
Date Public
2021-08-11 00:00
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CVE-2019-5440 (GCVE-0-2019-5440)
Vulnerability from cvelistv5 – Published: 2019-05-28 18:41 – Updated: 2024-08-04 19:54
VLAI
EPSS
VEX
Summary
Use of cryptographically weak PRNG in the password recovery token generation of Revive Adserver < v4.2.1 causes a potential authentication bypass attack if an attacker exploits the password recovery functionality. In lib/OA/Dal/PasswordRecovery.php, the function generateRecoveryId() generates a password reset token that relies on the PHP uniqid function and consequently depends only on the current server time, which is often visible in an HTTP Date header.
Severity
No CVSS data available.
CWE
- CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) (CWE-338)
Assigner
hackerone
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://hackerone.com/reports/576504 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Revive | Revive Adserver |
Affected:
Fixed in 4.2.1
|
Date Public
2019-05-21 00:00
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CVE-2018-25107 (GCVE-0-2018-25107)
Vulnerability from cvelistv5 – Published: 2024-12-29 00:00 – Updated: 2024-12-31 18:20
VLAI
EPSS
VEX
Summary
The Crypt::Random::Source package before 0.13 for Perl has a fallback to the built-in rand() function, which is not a secure source of random bits.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-12-31 18:18 UTC
CWE
- CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Assigner
mitre
CNA
References
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CVE-2014-2362 (GCVE-0-2014-2362)
Vulnerability from cvelistv5 – Published: 2014-07-24 14:00 – Updated: 2025-10-06 17:33
VLAI
EPSS
VEX
Title
OleumTech WIO Use of Cryptographically Weak Pseudo-Random Number Generator
Summary
OleumTech WIO DH2 Wireless Gateway and Sensor Wireless I/O Modules rely exclusively on a time value for entropy in key generation, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by predicting the time of project creation.
Severity
No CVSS data available.
CWE
Assigner
icscert
CNA
References
5 references
| URL | Tags |
|---|---|
| http://www.securityfocus.com/bid/68797 | vdb-entryx_refsource_BID |
| https://www.cisa.gov/news-events/ics-advisories/i… | |
| http://support.oleumtech.com/ | |
| http://www.securityfocus.com/bid/68800 | vdb-entryx_refsource_BIDx_transferred |
| http://ics-cert.us-cert.gov/advisories/ICSA-14-202-01 | x_refsource_MISCx_transferred |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| OleumTech | WIO DH2 Wireless Gateway |
Affected:
All versions
|
|
| OleumTech | Sensor Wireless I/O Modules |
Affected:
All versions
|
Date Public
2014-07-21 06:00
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CVE-2011-4574 (GCVE-0-2011-4574)
Vulnerability from cvelistv5 – Published: 2021-10-27 00:52 – Updated: 2024-08-07 00:09
VLAI
EPSS
VEX
Summary
PolarSSL versions prior to v1.1 use the HAVEGE random number generation algorithm. At its heart, this uses timing information based on the processor's high resolution timer (the RDTSC instruction). This instruction can be virtualized, and some virtual machine hosts have chosen to disable this instruction, returning 0s or predictable results.
Severity
No CVSS data available.
CWE
Assigner
redhat
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://tls.mbed.org/tech-updates/security-adviso… | x_refsource_MISC |
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CVE-2008-3280 (GCVE-0-2008-3280)
Vulnerability from cvelistv5 – Published: 2021-05-21 19:23 – Updated: 2024-08-07 09:28
VLAI
EPSS
VEX
Summary
It was found that various OpenID Providers (OPs) had TLS Server Certificates that used weak keys, as a result of the Debian Predictable Random Number Generator (CVE-2008-0166). In combination with the DNS Cache Poisoning issue (CVE-2008-1447) and the fact that almost all SSL/TLS implementations do not consult CRLs (currently an untracked issue), this means that it is impossible to rely on these OPs.
Severity
No CVSS data available.
CWE
Assigner
redhat
CNA
References
2 references
| URL | Tags |
|---|---|
| http://lists.openid.net/pipermail/openid-security… | x_refsource_MISC |
| https://www.exploit-db.com/exploits/5720 | x_refsource_MISC |
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CVE-2002-20002 (GCVE-0-2002-20002)
Vulnerability from cvelistv5 – Published: 2025-01-02 00:00 – Updated: 2025-01-06 21:08
VLAI
EPSS
VEX
Summary
The Net::EasyTCP package before 0.15 for Perl always uses Perl's builtin rand(), which is not a strong random number generator, for cryptographic keys.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-01-06 21:08 UTC
CWE
- CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)
Assigner
mitre
CNA
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Mitigation
Implementation
Use functions or hardware which use a hardware-based random number generation for all crypto. This is the recommended solution. Use CyptGenRandom on Windows, or hw_rand() on Linux.
No CAPEC attack patterns related to this CWE.