CVE-2023-39958 (GCVE-0-2023-39958)
Vulnerability from cvelistv5 – Published: 2023-08-10 17:04 – Updated: 2024-10-10 15:52
VLAI
EPSS
VEX
Title
Missing brute force protection on password reset token OAuth2 API controller
Summary
Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 22.0.0 and prior to versions 22.2.10.13, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, missing protection allows an attacker to brute force the client secrets of configured OAuth2 clients. Nextcloud Server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 22.2.10.13, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available.
Severity
5.8 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-10-10 15:51 UTC
CWE
- CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/nextcloud/security-advisories/… | x_refsource_CONFIRM |
| https://github.com/nextcloud/server/pull/38773 | x_refsource_MISC |
| https://hackerone.com/reports/1258448 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| nextcloud | security-advisories |
Affected:
>= 22.0.0, < 22.2.10.13
Affected: >= 23.0.0, < 23.0.12.8 Affected: >= 24.0.0, < 24.0.12.5 Affected: >= 25.0.0, < 25.0.9 Affected: >= 26.0.0, < 26.0.4 Affected: >= 27.0.0, < 27.0.1 |
guessed |
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"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2023-39958",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2023-39958.json",
"version": "5"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T18:18:10.177Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vv27-g2hq-v48h",
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vv27-g2hq-v48h"
},
{
"name": "https://github.com/nextcloud/server/pull/38773",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/nextcloud/server/pull/38773"
},
{
"name": "https://hackerone.com/reports/1258448",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://hackerone.com/reports/1258448"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-39958",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-10-10T15:51:49.254075Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2024-10-10T15:51:53.963Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "security-advisories",
"vendor": "nextcloud",
"versions": [
{
"status": "affected",
"version": "\u003e= 22.0.0, \u003c 22.2.10.13"
},
{
"status": "affected",
"version": "\u003e= 23.0.0, \u003c 23.0.12.8"
},
{
"status": "affected",
"version": "\u003e= 24.0.0, \u003c 24.0.12.5"
},
{
"status": "affected",
"version": "\u003e= 25.0.0, \u003c 25.0.9"
},
{
"status": "affected",
"version": "\u003e= 26.0.0, \u003c 26.0.4"
},
{
"status": "affected",
"version": "\u003e= 27.0.0, \u003c 27.0.1"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Nextcloud Server provides data storage for Nextcloud, an open source cloud platform. Starting in version 22.0.0 and prior to versions 22.2.10.13, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1, missing protection allows an attacker to brute force the client secrets of configured OAuth2 clients. Nextcloud Server versions 25.0.9, 26.0.4, and 27.0.1 and Nextcloud Enterprise Server versions 22.2.10.13, 23.0.12.8, 24.0.12.5, 25.0.9, 26.0.4, and 27.0.1 contain a patch for this issue. No known workarounds are available."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-307",
"description": "CWE-307: Improper Restriction of Excessive Authentication Attempts",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-08-10T17:10:58.079Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vv27-g2hq-v48h",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vv27-g2hq-v48h"
},
{
"name": "https://github.com/nextcloud/server/pull/38773",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/nextcloud/server/pull/38773"
},
{
"name": "https://hackerone.com/reports/1258448",
"tags": [
"x_refsource_MISC"
],
"url": "https://hackerone.com/reports/1258448"
}
],
"source": {
"advisory": "GHSA-vv27-g2hq-v48h",
"discovery": "UNKNOWN"
},
"title": "Missing brute force protection on password reset token OAuth2 API controller"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2023-39958",
"datePublished": "2023-08-10T17:04:51.729Z",
"dateReserved": "2023-08-07T16:27:27.076Z",
"dateUpdated": "2024-10-10T15:52:01.095Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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