rhsa-2020_3808
Vulnerability from csaf_redhat
Published
2020-09-23 12:46
Modified
2024-11-22 15:43
Summary
Red Hat Security Advisory: OpenShift Container Platform 4.3.38 jenkins and openshift security update
Notes
Topic
An update for jenkins and openshift is now available for Red Hat OpenShift Container Platform 4.3.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
Red Hat OpenShift Container Platform is Red Hat's cloud computing
Kubernetes application platform solution designed for on-premise or private
cloud deployments.
Jenkins is a continuous integration server that monitors executions of repeated jobs, such as building a software project or jobs run by cron.
Security Fix(es):
* jenkins: Stored XSS vulnerability in job build time trend (CVE-2020-2220)
* jenkins: Stored XSS vulnerability in upstream cause (CVE-2020-2221)
* jenkins: Stored XSS vulnerability in 'keep forever' badge icons (CVE-2020-2222)
* jenkins: Stored XSS vulnerability in console links (CVE-2020-2223)
* kubernetes: Node disk DOS by writing to container /etc/hosts (CVE-2020-8557)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"text": "In Eclipse Jetty, versions 9.4.27.v20200227 to 9.4.29.v20200521, in case of too large response headers, Jetty throws an exception to produce an HTTP 431 error. When this happens, the ByteBuffer containing the HTTP response headers is released back to the ByteBufferPool twice. Because of this double release, two threads can acquire the same ByteBuffer from the pool and while thread1 is about to use the ByteBuffer to write response1 data, thread2 fills the ByteBuffer with other data. Thread1 then proceeds to write the buffer that now contains different data. This results in client1, which issued request1 seeing data from another request or response which could contain sensitive data belonging to client2 (HTTP session ids, authentication credentials, etc.). If the Jetty version cannot be upgraded, the vulnerability can be significantly reduced by configuring a responseHeaderSize significantly larger than the requestHeaderSize (12KB responseHeaderSize and 8KB requestHeaderSize).",
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},
{
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"title": "Vulnerability summary"
},
{
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}
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},
{
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{
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{
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"release_date": "2020-06-03T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-09-23T12:46:15+00:00",
"details": "For OpenShift Container Platform 4.3 see the following documentation, which\nwill be updated shortly for this release, for important instructions on how\nto upgrade your cluster and fully apply this asynchronous errata update:\n\nhttps://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html\n\nDetails on how to access this content are available at\nhttps://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.",
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"scores": [
{
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"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L",
"version": "3.1"
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"details": "Important"
}
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"title": "jetty: double release of resource can lead to information disclosure"
},
{
"cve": "CVE-2020-2220",
"cwe": {
"id": "CWE-79",
"name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
},
"discovery_date": "2020-07-15T00:00:00+00:00",
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"notes": [
{
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"text": "A flaw was found in Jenkins versions 2.244 and prior and in LTS 2.235.1 and prior. The agent name is not escaped on build time trend pages which could lead to a stored cross-site scripting (XSS) vulnerability. The user must have the Agent/Configure permission for this exploit to function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
"title": "Vulnerability description"
},
{
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"text": "jenkins: Stored XSS vulnerability in job build time trend",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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},
{
"category": "external",
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},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-2220",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-2220"
}
],
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}
],
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{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
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"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
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]
}
],
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{
"category": "impact",
"details": "Important"
}
],
"title": "jenkins: Stored XSS vulnerability in job build time trend"
},
{
"cve": "CVE-2020-2221",
"cwe": {
"id": "CWE-79",
"name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
},
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],
"ids": [
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],
"notes": [
{
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"text": "A flaw was found in Jenkins versions 2.244 and prior and in LTS 2.235.1 and prior. The upstream job\u0027s display name is not escaped on build time trend pages which could lead to a stored cross-site scripting (XSS) vulnerability. The user must have the Agent/Configure permission for this exploit to function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.",
"title": "Vulnerability description"
},
{
"category": "summary",
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"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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},
{
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}
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"privilegesRequired": "LOW",
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"userInteraction": "REQUIRED",
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"version": "3.1"
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]
}
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"category": "impact",
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}
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},
{
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"cwe": {
"id": "CWE-79",
"name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
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{
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"title": "Vulnerability description"
},
{
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},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
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},
{
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}
],
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{
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},
{
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"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
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"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-2223"
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{
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},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-2223",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-2223"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-2223",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-2223"
}
],
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{
"category": "vendor_fix",
"date": "2020-09-23T12:46:15+00:00",
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],
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"category": "none"
},
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}
],
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{
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "jenkins: Stored XSS vulnerability in console links"
},
{
"cve": "CVE-2020-2229",
"cwe": {
"id": "CWE-79",
"name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
},
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{
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}
],
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1874830"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Jenkins in versions prior to 2.251 and LTS 2.235.3. Tooltip values, which are not properly escaped, can be contributed by plugins and use user-specified values. This results in a potential stored cross-site scripting (XSS) vulnerability. This highest threat from this vulnerability is to data confidentiality and integrity.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "jenkins: user-specified tooltip values leads to stored cross-site scripting",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
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],
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]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-2229"
},
{
"category": "external",
"summary": "RHBZ#1874830",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1874830"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-2229",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-2229"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-2229",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-2229"
},
{
"category": "external",
"summary": "https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1955",
"url": "https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1955"
}
],
"release_date": "2020-08-12T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-09-23T12:46:15+00:00",
"details": "For OpenShift Container Platform 4.3 see the following documentation, which\nwill be updated shortly for this release, for important instructions on how\nto upgrade your cluster and fully apply this asynchronous errata update:\n\nhttps://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html\n\nDetails on how to access this content are available at\nhttps://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.",
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"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.src"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2020:3808"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"products": [
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.noarch",
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.src"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "jenkins: user-specified tooltip values leads to stored cross-site scripting"
},
{
"cve": "CVE-2020-2230",
"cwe": {
"id": "CWE-79",
"name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
},
"discovery_date": "2020-08-17T00:00:00+00:00",
"flags": [
{
"label": "vulnerable_code_not_present",
"product_ids": [
"8Base-RHOSE-4.3:openshift-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.src",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.ppc64le",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.s390x",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.x86_64"
]
}
],
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1875232"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Jenkins in versions prior to 2.251 and LTS 2.235.3. The project naming strategy description, displayed on item creation, is not properly escaped. This can result in a stored cross-site scripting (XSS) vulnerability exploitable by users with Overall/Manage permissions. The highest threat from this vulnerability is to data confidentiality and integrity.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "jenkins: stored XSS vulnerability in project naming strategy",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.noarch",
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.src"
],
"known_not_affected": [
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"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.ppc64le",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.s390x",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-2230"
},
{
"category": "external",
"summary": "RHBZ#1875232",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1875232"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-2230",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-2230"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-2230",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-2230"
},
{
"category": "external",
"summary": "https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1957",
"url": "https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1957"
}
],
"release_date": "2020-08-12T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-09-23T12:46:15+00:00",
"details": "For OpenShift Container Platform 4.3 see the following documentation, which\nwill be updated shortly for this release, for important instructions on how\nto upgrade your cluster and fully apply this asynchronous errata update:\n\nhttps://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html\n\nDetails on how to access this content are available at\nhttps://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.",
"product_ids": [
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.noarch",
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.src"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2020:3808"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"products": [
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.noarch",
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.src"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "jenkins: stored XSS vulnerability in project naming strategy"
},
{
"cve": "CVE-2020-2231",
"cwe": {
"id": "CWE-79",
"name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
},
"discovery_date": "2020-08-17T00:00:00+00:00",
"flags": [
{
"label": "vulnerable_code_not_present",
"product_ids": [
"8Base-RHOSE-4.3:openshift-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.src",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.ppc64le",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.s390x",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.x86_64"
]
}
],
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1875234"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Jenkins versions prior to 2.251 and LTS 2.235.3. The remote address of hosts starting a build via \u0027Trigger builds remotely\u0027 are not properly escaped leading to a potential stored cross-site scripting (XSS) vulnerability exploitable by users with Job/Configure permission or knowledge of the authentication token. The highest threat from this vulnerability is to data confidentiality and integrity.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "jenkins: stored XSS vulnerability in \u0027trigger builds remotely\u0027",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.noarch",
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.src"
],
"known_not_affected": [
"8Base-RHOSE-4.3:openshift-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.src",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.ppc64le",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.s390x",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-2231"
},
{
"category": "external",
"summary": "RHBZ#1875234",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1875234"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-2231",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-2231"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-2231",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-2231"
},
{
"category": "external",
"summary": "https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1960",
"url": "https://jenkins.io/security/advisory/2020-08-12/#SECURITY-1960"
}
],
"release_date": "2020-08-12T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-09-23T12:46:15+00:00",
"details": "For OpenShift Container Platform 4.3 see the following documentation, which\nwill be updated shortly for this release, for important instructions on how\nto upgrade your cluster and fully apply this asynchronous errata update:\n\nhttps://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html\n\nDetails on how to access this content are available at\nhttps://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.",
"product_ids": [
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.noarch",
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.src"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2020:3808"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"products": [
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.noarch",
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.src"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "jenkins: stored XSS vulnerability in \u0027trigger builds remotely\u0027"
},
{
"acknowledgments": [
{
"names": [
"the Kubernetes Product Security Committee"
]
},
{
"names": [
"Kebe Liu"
],
"organization": "DaoCloud",
"summary": "Acknowledged by upstream."
}
],
"cve": "CVE-2020-8557",
"cwe": {
"id": "CWE-400",
"name": "Uncontrolled Resource Consumption"
},
"discovery_date": "2020-05-09T00:00:00+00:00",
"flags": [
{
"label": "vulnerable_code_not_present",
"product_ids": [
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.noarch",
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.src"
]
}
],
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1835977"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Kubernetes, where the amount of disk space the /etc/hosts file can use is unconstrained . This flaw can allow attacker-controlled pods to cause a denial of service if they have permission to write to the node\u0027s /etc/hosts file.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kubernetes: Node disk DOS by writing to container /etc/hosts",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "In OpenShift Container Platform (OCP) there is LocalStorageCapacityIsolation feature gate functionality which prevents a denial of service (DoS) attack on the node by writing to the ephemeral storage.This feature is disabled by default in OCP 3.11 and can be enabled as per [1]. Even with enabled LocalStorageCapacityIsolation feature gate, OCP is affected by this vulnerability, therefore it is recommended to enable the feature gate and also upgrade to an OCP version which has a fix for this vulnerability.\n\n[1] https://docs.openshift.com/container-platform/3.11/install_config/configuring_ephemeral.html",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"8Base-RHOSE-4.3:openshift-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.src",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.ppc64le",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.s390x",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.x86_64"
],
"known_not_affected": [
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.noarch",
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.src"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-8557"
},
{
"category": "external",
"summary": "RHBZ#1835977",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1835977"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-8557",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-8557"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-8557",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8557"
},
{
"category": "external",
"summary": "https://groups.google.com/g/kubernetes-security-announce/c/cB_JUsYEKyY",
"url": "https://groups.google.com/g/kubernetes-security-announce/c/cB_JUsYEKyY"
}
],
"release_date": "2020-07-15T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-09-23T12:46:15+00:00",
"details": "For OpenShift Container Platform 4.3 see the following documentation, which\nwill be updated shortly for this release, for important instructions on how\nto upgrade your cluster and fully apply this asynchronous errata update:\n\nhttps://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html\n\nDetails on how to access this content are available at\nhttps://docs.openshift.com/container-platform/4.3/updating/updating-cluster-cli.html.",
"product_ids": [
"8Base-RHOSE-4.3:openshift-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.src",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.ppc64le",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.s390x",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2020:3808"
},
{
"category": "workaround",
"details": "On OpenShift Container Platform (OCP) 3.11 and 4.x it\u0027s possible to set the allowPrivilegeEscalation Security Context Constraint to \u0027false\u0027 to prevent this. Note that this is set to \u0027true\u0027 by default, and setting it to false will prevent certain binaries which require setuid to stop working. On OCP 3.11 for example the \u0027ping\u0027 command will no longer work [1]. On OCP 4.x and later the \u0027ping\u0027 command will work with allowPrivilegeEscalation set to False, but other setuid binaries will not work.\n[1] https://docs.openshift.com/container-platform/3.11/release_notes/ocp_3_11_release_notes.html",
"product_ids": [
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.noarch",
"7Server-RH7-RHOSE-4.3:jenkins-0:2.235.5.1600415514-1.el7.src",
"8Base-RHOSE-4.3:openshift-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.src",
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"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.s390x",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"8Base-RHOSE-4.3:openshift-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.src",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.ppc64le",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.s390x",
"8Base-RHOSE-4.3:openshift-hyperkube-0:4.3.37-202009120213.p0.git.0.dffefe4.el8.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kubernetes: Node disk DOS by writing to container /etc/hosts"
}
]
}
Loading…
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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.
- 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.