rhsa-2021_3745
Vulnerability from csaf_redhat
Published
2021-10-07 13:35
Modified
2024-11-15 10:39
Summary
Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP9 security update
Notes
Topic
Red Hat JBoss Core Services Apache HTTP Server 2.4.37 Service Pack 9 zip release for Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, and Microsoft Windows is available.
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 JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience.
This release adds the new Apache HTTP Server 2.4.37 Service Pack 9 packages that are part of the JBoss Core Services offering.
This release serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.37 Service Pack 8 and includes an important security update. Refer to the Release Notes for information on the security fix included in this release.
Security Fix(es):
* httpd: mod_proxy: SSRF via a crafted request uri-path (CVE-2021-40438)
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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"category": "summary",
"text": "Red Hat JBoss Core Services Apache HTTP Server 2.4.37 Service Pack 9 zip release for Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, and Microsoft Windows is available.\n\nRed 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.",
"title": "Topic"
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{
"category": "general",
"text": "Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience.\n\nThis release adds the new Apache HTTP Server 2.4.37 Service Pack 9 packages that are part of the JBoss Core Services offering.\n\nThis release serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.37 Service Pack 8 and includes an important security update. Refer to the Release Notes for information on the security fix included in this release.\n\nSecurity Fix(es):\n\n* httpd: mod_proxy: SSRF via a crafted request uri-path (CVE-2021-40438)\n\nFor 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.",
"title": "Details"
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"title": "Terms of Use"
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"url": "https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_3745.json"
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"title": "Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP9 security update",
"tracking": {
"current_release_date": "2024-11-15T10:39:08+00:00",
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"engine": {
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"id": "RHSA-2021:3745",
"initial_release_date": "2021-10-07T13:35:15+00:00",
"revision_history": [
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"date": "2021-10-07T13:35:15+00:00",
"number": "1",
"summary": "Initial version"
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{
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"vulnerabilities": [
{
"cve": "CVE-2021-40438",
"cwe": {
"id": "CWE-918",
"name": "Server-Side Request Forgery (SSRF)"
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"discovery_date": "2021-09-16T00:00:00+00:00",
"ids": [
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"text": "2005117"
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"notes": [
{
"category": "description",
"text": "A Server-Side Request Forgery (SSRF) flaw was found in mod_proxy of httpd. This flaw allows a remote, unauthenticated attacker to make the httpd server forward requests to an arbitrary server. The attacker could get, modify, or delete resources on other services that may be behind a firewall and inaccessible otherwise. The impact of this flaw varies based on what services and resources are available on the httpd network.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "httpd: mod_proxy: SSRF via a crafted request uri-path containing \"unix:\"",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "Impact of the flaw set to Important because the actions an attacker can do varies a lot based on the kind of infrastructure in place, the kind of internal services and resources, and the available endpoints on those services. The attacker should also perform some kind of target-specific reconnaissance in order to find out all the above information.\n\nThe version of httpd as shipped in Red Hat Enterprise Linux 7 is affected by this flaw even if the upstream code was not, because the Unix Domain Socket support required to trigger the flaw was backported.\nThe version of httpd as shipped in Red hat Enterprise Linux 6 is not affected by this flaw because there is no support for Unix Domain Socket.\n\nThe flaw can be triggered only if mod_proxy is in use (e.g. ProxyPass, ReverseProxy is used in the httpd configuration files).",
"title": "Statement"
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"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.",
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"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2005117"
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{
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"url": "https://www.cve.org/CVERecord?id=CVE-2021-40438"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2021-40438",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-40438"
},
{
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],
"release_date": "2021-09-16T00:00:00+00:00",
"remediations": [
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"category": "vendor_fix",
"date": "2021-10-07T13:35:15+00:00",
"details": "Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on.\n\nThe References section of this erratum contains a download link for the update. You must be logged in to download the update.",
"product_ids": [
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"scores": [
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.0,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
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"products": [
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"threats": [
{
"category": "exploit_status",
"date": "2021-12-01T00:00:00+00:00",
"details": "CISA: https://www.cisa.gov/known-exploited-vulnerabilities-catalog"
},
{
"category": "impact",
"details": "Important"
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],
"title": "httpd: mod_proxy: SSRF via a crafted request uri-path containing \"unix:\""
}
]
}
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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.