gsd-2021-25748
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use a newline character to bypass the sanitization of the `spec.rules[].http.paths[].path` field of an Ingress object (in the `networking.k8s.io` or `extensions` API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-25748",
"id": "GSD-2021-25748",
"references": [
"https://www.suse.com/security/cve/CVE-2021-25748.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-25748"
],
"details": "A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use a newline character to bypass the sanitization of the `spec.rules[].http.paths[].path` field of an Ingress object (in the `networking.k8s.io` or `extensions` API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.",
"id": "GSD-2021-25748",
"modified": "2023-12-13T01:23:21.663973Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "security@kubernetes.io",
"DATE_PUBLIC": "2022-06-10T16:00:00.000Z",
"ID": "CVE-2021-25748",
"STATE": "PUBLIC",
"TITLE": "Ingress-nginx `path` sanitization can be bypassed with newline character"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Kubernetes ingress-nginx",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_value": "1.2.1"
}
]
}
}
]
},
"vendor_name": "Kubernetes"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Gafnit Amiga"
}
],
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"data_version": "4.0",
"description": {
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"value": "A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use a newline character to bypass the sanitization of the `spec.rules[].http.paths[].path` field of an Ingress object (in the `networking.k8s.io` or `extensions` API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster."
}
]
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 7.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-20: Improper Input Validation"
}
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}
]
},
"references": {
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{
"name": "https://groups.google.com/g/kubernetes-security-announce/c/avaRYa9c7I8",
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},
{
"name": "https://github.com/kubernetes/ingress-nginx/issues/8686",
"refsource": "MISC",
"url": "https://github.com/kubernetes/ingress-nginx/issues/8686"
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]
},
"source": {
"defect": [
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],
"discovery": "EXTERNAL"
}
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003cv1.2.1",
"affected_versions": "All versions before 1.2.1",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"cwe_ids": [
"CWE-20",
"CWE-1035",
"CWE-937"
],
"date": "2023-06-01",
"description": "A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use a newline character to bypass the sanitization of the `spec.rules[].http.paths[].path` field of an Ingress object (in the `networking.k8s.io` or `extensions` API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.",
"fixed_versions": [
"v1.2.1"
],
"identifier": "CVE-2021-25748",
"identifiers": [
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],
"not_impacted": "All versions starting from 1.2.1",
"package_slug": "go/github.com/kubernetes/ingress-nginx",
"pubdate": "2023-05-24",
"solution": "Upgrade to version 1.2.1 or above.",
"title": "Improper Input Validation",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-25748",
"https://github.com/kubernetes/ingress-nginx/issues/8686",
"https://groups.google.com/g/kubernetes-security-announce/c/avaRYa9c7I8"
],
"uuid": "5667ef15-bae3-4428-bd1f-20d8775b14e5",
"versions": []
},
{
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"affected_versions": "All versions before 1.2.1",
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],
"date": "2023-05-24",
"description": "A security issue was discovered in ingress-nginx where a user that can create or update ingress objects can use a newline character to bypass the sanitization of the `spec.rules[].http.paths[].path` field of an Ingress object (in the `networking.k8s.io` or `extensions` API group) to obtain the credentials of the ingress-nginx controller. In the default configuration, that credential has access to all secrets in the cluster.",
"fixed_versions": [
"1.2.1"
],
"identifier": "CVE-2021-25748",
"identifiers": [
"GHSA-863x-868h-968x",
"CVE-2021-25748"
],
"not_impacted": "All versions starting from 1.2.1",
"package_slug": "go/k8s.io/ingress-nginx",
"pubdate": "2023-05-24",
"solution": "Upgrade to version 1.2.1 or above.",
"title": "Ingress-nginx `path` sanitization can be bypassed with newline character",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-25748",
"https://github.com/kubernetes/ingress-nginx/issues/8686",
"https://groups.google.com/g/kubernetes-security-announce/c/avaRYa9c7I8",
"https://github.com/kubernetes/ingress-nginx/pull/8623",
"https://github.com/kubernetes/ingress-nginx/releases/tag/controller-v1.2.1",
"https://github.com/advisories/GHSA-863x-868h-968x"
],
"uuid": "321e58ac-dbce-4cb7-8132-565b293b1f9c"
}
]
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:kubernetes:ingress-nginx:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "1.2.1",
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
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"ID": "CVE-2021-25748"
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}
]
},
"problemtype": {
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"references": {
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"name": "https://github.com/kubernetes/ingress-nginx/issues/8686",
"refsource": "MISC",
"tags": [
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"url": "https://github.com/kubernetes/ingress-nginx/issues/8686"
},
{
"name": "https://groups.google.com/g/kubernetes-security-announce/c/avaRYa9c7I8",
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},
"impact": {
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 3.6
}
},
"lastModifiedDate": "2023-06-01T20:44Z",
"publishedDate": "2023-05-24T17:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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