Common Weakness Enumeration
CWE-340
Allowed-with-ReviewGeneration of Predictable Numbers or Identifiers
Abstraction: Class · Status: Incomplete
The product uses a scheme that generates numbers or identifiers that are more predictable than required.
69 vulnerabilities reference this CWE, most recent first.
CVE-2024-52299 (GCVE-0-2024-52299)
Vulnerability from cvelistv5 – Published: 2024-11-13 15:29 – Updated: 2024-11-14 13:58
VLAI
EPSS
VEX
Title
The PDF viewer macro allows accessing any attachment without access right checks
Summary
macro-pdfviewer is a PDF Viewer Macro for XWiki using Mozilla pdf.js. Any user with view right on XWiki.PDFViewerService can access any attachment stored in the wiki as the "key" that is passed to prevent this is computed incorrectly, calling skip on the digest stream doesn't update the digest. This is fixed in 2.5.6.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-340 - Generation of Predictable Numbers or Identifiers
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/xwikisas/macro-pdfviewer/secur… | x_refsource_CONFIRM |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| xwikisas | macro-pdfviewer |
Affected:
>= 1.6.2, < 2.5.6
|
|
| xwikisas | macro_pdfviewer |
Affected:
0 , ≤ 1.6.2
(custom)
Affected: 0 , < 2.5.6 (custom) cpe:2.3:a:xwikisas:macro_pdfviewer:*:*:*:*:*:*:*:* |
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CVE-2024-47945 (GCVE-0-2024-47945)
Vulnerability from cvelistv5 – Published: 2024-10-15 10:05 – Updated: 2025-11-03 22:21
VLAI
EPSS
VEX
Title
Predictable Session ID
Summary
The devices are vulnerable to session hijacking due to insufficient
entropy in its session ID generation algorithm. The session IDs are
predictable, with only 32,768 possible values per user, which allows
attackers to pre-generate valid session IDs, leading to unauthorized
access to user sessions. This is not only due to the use of an
(insecure) rand() function call but also because of missing
initialization via srand(). As a result only the PIDs are effectively
used as seed.
Severity
9.1 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-340 - Generation of Predictable Numbers or Identifiers
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://r.sec-consult.com/rittaliot | third-party-advisory |
| https://www.rittal.com/de-de/products/deep/3124300 | patch |
| http://seclists.org/fulldisclosure/2024/Oct/4 |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| RITTAL GmbH & Co. KG | IoT Interface & CMC III Processing Unit |
Affected:
<6.21.00.2
|
|
| rittal_gmbh_and_co.kg | iot_interface_and_cmc_iii_processing_unit |
Affected:
0 , < 6.21.00.2
(custom)
cpe:2.3:a:rittal_gmbh_and_co.kg:iot_interface_and_cmc_iii_processing_unit:*:*:*:*:*:*:*:* |
Credits
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CVE-2024-12034 (GCVE-0-2024-12034)
Vulnerability from cvelistv5 – Published: 2024-12-24 05:23 – Updated: 2026-04-08 16:35
VLAI
EPSS
VEX
Title
Advanced Google reCAPTCHA <= 1.25 - Brute Force Protection IP Unblock
Summary
The Advanced Google reCAPTCHA plugin for WordPress is vulnerable to IP unblocking in all versions up to, and including, 1.25. This is due to the plugin not utilizing a strong unique key when generating an unblock request. This makes it possible for unauthenticated attackers to unblock their IP after being locked out due to too many bad password attempts
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-340 - Generation of Predictable Numbers or Identifiers
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| webfactory | Advanced Google reCAPTCHA |
Affected:
0 , ≤ 1.25
(semver)
|
Credits
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CVE-2024-10603 (GCVE-0-2024-10603)
Vulnerability from cvelistv5 – Published: 2025-01-30 19:14 – Updated: 2025-02-24 11:59
VLAI
EPSS
VEX
Summary
Weaknesses in the generation of TCP/UDP source ports and some other header values in Google's gVisor allowed them to be predicted by an external attacker in some circumstances.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Credits
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CVE-2024-7558 (GCVE-0-2024-7558)
Vulnerability from cvelistv5 – Published: 2024-10-02 10:06 – Updated: 2024-10-02 13:59
VLAI
EPSS
VEX
Summary
JUJU_CONTEXT_ID is a predictable authentication secret. On a Juju machine (non-Kubernetes) or Juju charm container (on Kubernetes), an unprivileged user in the same network namespace can connect to an abstract domain socket and guess the JUJU_CONTEXT_ID value. This gives the unprivileged user access to the same information and tools as the Juju charm.
Severity
8.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/juju/juju/security/advisories/… | issue-tracking |
| https://www.cve.org/CVERecord?id=CVE-2024-7558 | issue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Canonical Ltd. | Juju |
Affected:
3.5 , < 3.5.4
(semver)
Affected: 3.4 , < 3.4.6 (semver) Affected: 3.3 , < 3.3.7 (semver) Affected: 3.1 , < 3.1.10 (semver) Affected: 2.9 , < 2.9.51 (semver) |
Credits
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CVE-2021-29480 (GCVE-0-2021-29480)
Vulnerability from cvelistv5 – Published: 2021-06-29 18:15 – Updated: 2024-08-03 22:11
VLAI
EPSS
VEX
Title
Default client side session signing key is highly predictable
Summary
Ratpack is a toolkit for creating web applications. In versions prior to 1.9.0, the client side session module uses the application startup time as the signing key by default. This means that if an attacker can determine this time, and if encryption is not also used (which is recommended, but is not on by default), the session data could be tampered with by someone with the ability to write cookies. The default configuration is unsuitable for production use as an application restart renders all sessions invalid and is not multi-host compatible, but its use is not actively prevented. As of Ratpack 1.9.0, the default value is a securely randomly generated value, generated at application startup time. As a workaround, supply an alternative signing key, as per the documentation's recommendation.
Severity
4.4 (Medium)
CWE
- CWE-340 - Generation of Predictable Numbers or Identifiers
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ratpack/ratpack/security/advis… | x_refsource_CONFIRM |
| https://github.com/ratpack/ratpack/blob/29434f7ac… | x_refsource_MISC |
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CVE-2020-1905 (GCVE-0-2020-1905)
Vulnerability from cvelistv5 – Published: 2020-10-06 17:35 – Updated: 2024-08-04 06:53
VLAI
EPSS
VEX
Summary
Media ContentProvider URIs used for opening attachments in other apps were generated sequentially prior to WhatsApp for Android v2.20.185, which could have allowed a malicious third party app chosen to open the file to guess the URIs for previously opened attachments until the opener app is terminated.
Severity
No CVSS data available.
CWE
- CWE-340 - Generation of Predictable Numbers or Identifiers
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.whatsapp.com/security/advisories/2020/ | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| WhatsApp for Android |
Affected:
2.20.185
Affected: unspecified , < 2.20.185 (custom) |
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GHSA-2CC5-23R7-VC4V
Vulnerability from github – Published: 2021-07-01 17:02 – Updated: 2022-08-11 00:17
VLAI
Summary
Ratpack's default client side session signing key is highly predictable
Details
Impact
The client side session module uses the application startup time as the signing key by default. This means that if an attacker can determine this time, and if encryption is not also used (which is recommended, but is not on by default), the session data could be tampered with by someone with the ability to write cookies.
The default configuration is unsuitable for production use as an application restart renders all sessions invalid and is not multi-host compatible, but its use is not actively prevented.
Vulnerability Location
https://github.com/ratpack/ratpack/blob/29434f7ac6fd4b36a4495429b70f4c8163100332/ratpack-session/src/main/java/ratpack/session/clientside/ClientSideSessionConfig.java#L29
Patches
As of Ratpack 1.9.0 the default value is a securely randomly generated value, generated at application startup time.
Workarounds
Supply an alternative signing key, as per the documentation's recommendation.
Severity
4.4 (Medium)
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GHSA-32VV-MWC8-CH6P
Vulnerability from github – Published: 2026-04-07 03:30 – Updated: 2026-04-07 03:30
VLAI
Details
IBM Concert 1.0.0 through 2.2.0 creates temporary files with predictable names, which allows local users to overwrite arbitrary files via a symlink attack.
Severity
6.2 (Medium)
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GHSA-3QFW-5G24-8PMQ
Vulnerability from github – Published: 2024-10-15 12:30 – Updated: 2025-11-04 00:31
VLAI
Details
The devices are vulnerable to session hijacking due to insufficient entropy in its session ID generation algorithm. The session IDs are predictable, with only 32,768 possible values per user, which allows attackers to pre-generate valid session IDs, leading to unauthorized access to user sessions. This is not only due to the use of an (insecure) rand() function call but also because of missing initialization via srand(). As a result only the PIDs are effectively used as seed.
Severity
9.1 (Critical)
{
"affected": [],
"aliases": [
"CVE-2024-47945"
],
"database_specific": {
"cwe_ids": [
"CWE-331",
"CWE-340"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-15T10:15:03Z",
"severity": "CRITICAL"
},
"details": "The devices are vulnerable to session hijacking due to insufficient \nentropy in its session ID generation algorithm. The session IDs are \npredictable, with only 32,768 possible values per user, which allows \nattackers to pre-generate valid session IDs, leading to unauthorized \naccess to user sessions. This is not only due to the use of an \n(insecure) rand() function call but also because of missing \ninitialization via srand(). As a result only the PIDs are effectively \nused as seed.",
"id": "GHSA-3qfw-5g24-8pmq",
"modified": "2025-11-04T00:31:34Z",
"published": "2024-10-15T12:30:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-47945"
},
{
"type": "WEB",
"url": "https://r.sec-consult.com/rittaliot"
},
{
"type": "WEB",
"url": "https://www.rittal.com/de-de/products/deep/3124300"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2024/Oct/4"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.