rhsa-2024_1677
Vulnerability from csaf_redhat
Published
2024-04-04 15:22
Modified
2024-11-14 00:27
Summary
Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 7.4.16 Security update
Notes
Topic
An update is now available for Red Hat JBoss Enterprise Application Platform 7.4.
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 Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.4.16 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.4.15, and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.4.16 Release Notes for information about the most significant bug fixes and enhancements included in this release.
Security Fix(es):
* undertow: Cookie Smuggling/Spoofing [eap-7.4.z] (CVE-2023-4639)
* apache-sshd: ssh: Prefix truncation attack on Binary Packet Protocol (BPP) [eap-7.4.z] (CVE-2023-48795)
* undertow: unrestricted request storage leads to memory exhaustion [eap-7.4.z] (CVE-2023-1973)
* undertow: Out-of-memory Error after several closed connections with wildfly-http-client protocol [eap-7.4.z] (CVE-2024-1635)
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": "Red Hat JBoss Enterprise Application Platform 7 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 7.4.16 serves as a replacement for Red Hat JBoss Enterprise Application Platform 7.4.15, and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 7.4.16 Release Notes for information about the most significant bug fixes and enhancements included in this release.\n\nSecurity Fix(es):\n\n* undertow: Cookie Smuggling/Spoofing [eap-7.4.z] (CVE-2023-4639)\n\n* apache-sshd: ssh: Prefix truncation attack on Binary Packet Protocol (BPP) [eap-7.4.z] (CVE-2023-48795)\n\n* undertow: unrestricted request storage leads to memory exhaustion [eap-7.4.z] (CVE-2023-1973)\n\n* undertow: Out-of-memory Error after several closed connections with wildfly-http-client protocol [eap-7.4.z] (CVE-2024-1635)\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.",
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"text": "A flaw was found in Undertow package. Using the FormAuthenticationMechanism, a malicious user could trigger a Denial of Service by sending crafted requests, leading the server to an OutofMemory error, exhausting the server\u0027s memory.",
"title": "Vulnerability description"
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"text": "undertow: unrestricted request storage leads to memory exhaustion",
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"title": "Vulnerability description"
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"url": "https://www.cve.org/CVERecord?id=CVE-2023-4639"
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}
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"scores": [
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"availabilityImpact": "NONE",
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"title": "undertow: Cookie Smuggling/Spoofing"
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{
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"cwe": {
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"name": "Truncation of Security-relevant Information"
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"ids": [
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"text": "2254210"
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"notes": [
{
"category": "description",
"text": "A flaw was found in the SSH channel integrity. By manipulating sequence numbers during the handshake, an attacker can remove the initial messages on the secure channel without causing a MAC failure. For example, an attacker could disable the ping extension and thus disable the new countermeasure in OpenSSH 9.5 against keystroke timing attacks.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "ssh: Prefix truncation attack on Binary Packet Protocol (BPP)",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This CVE is classified as moderate because the attack requires an active Man-in-the-Middle (MITM) who can intercept and modify the connection\u0027s traffic at the TCP/IP layer.\n\nAlthough the attack is cryptographically innovative, its security impact is fortunately quite limited. It only allows the deletion of consecutive messages, and deleting most messages at this protocol stage prevents user authentication from proceeding, leading to a stalled connection.\n\nThe most significant identified impact is that it enables a MITM to delete the SSH2_MSG_EXT_INFO message sent before authentication begins. This allows the attacker to disable a subset of keystroke timing obfuscation features. However, there is no other observable impact on session secrecy or session integrity.",
"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.",
"title": "CVSS score applicability"
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],
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"summary": "RHBZ#2254210",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2254210"
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"url": "https://www.cve.org/CVERecord?id=CVE-2023-48795"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-48795",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-48795"
},
{
"category": "external",
"summary": "https://access.redhat.com/solutions/7071748",
"url": "https://access.redhat.com/solutions/7071748"
},
{
"category": "external",
"summary": "https://terrapin-attack.com/",
"url": "https://terrapin-attack.com/"
}
],
"release_date": "2023-12-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-04-04T15:22:45+00:00",
"details": "Before applying the update, make sure all previously released errata relevant to your system have been applied.\nAlso, back up your existing installation, including all applications, configuration files, databases and database settings.\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
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],
"restart_required": {
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"url": "https://access.redhat.com/errata/RHSA-2024:1677"
},
{
"category": "workaround",
"details": "Update to the last version and check that client and server provide kex pseudo-algorithms indicating usage of the updated version of the protocol which is protected from the attack. If \"kex-strict-c-v00@openssh.com\" is provided by clients and \"kex-strict-s-v00@openssh.com\" is in the server\u0027s reply, no other steps are necessary.\n\nDisabling ciphers if necessary:\n\nIf \"kex-strict-c-v00@openssh.com\" is not provided by clients or \"kex-strict-s-v00@openssh.com\" is absent in the server\u0027s reply, you can disable the following ciphers and HMACs as a workaround on RHEL-8 and RHEL-9:\n\n1. chacha20-poly1305@openssh.com\n2. hmac-sha2-512-etm@openssh.com\n3. hmac-sha2-256-etm@openssh.com\n4. hmac-sha1-etm@openssh.com\n5. hmac-md5-etm@openssh.com\n\nTo do that through crypto-policies, one can apply a subpolicy with the following content:\n```\ncipher@SSH = -CHACHA20-POLY1305\nssh_etm = 0\n```\ne.g., by putting these lines into `/etc/crypto-policies/policies/modules/CVE-2023-48795.pmod`, applying the resulting subpolicy with `update-crypto-policies --set $(update-crypto-policies --show):CVE-2023-48795` and restarting openssh server.\n\nOne can verify that the changes are in effect by ensuring the ciphers listed above are missing from both `/etc/crypto-policies/back-ends/openssh.config` and `/etc/crypto-policies/back-ends/opensshserver.config`.\n\nFor more details on using crypto-policies, please refer to https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/security_hardening/using-the-system-wide-cryptographic-policies_security-hardening\n\nNote that this procedure does limit the interoperability of the host and is only suggested as a temporary mitigation until the issue is fully resolved with an update.\n\nFor RHEL-7: \nWe can recommend to use strict MACs and Ciphers on RHEL7 in both files /etc/ssh/ssh_config and /etc/ssh/sshd_config.\n\nBelow strict set of Ciphers and MACs can be used as mitigation for RHEL 7.\n\n```\nCiphers aes128-ctr,aes192-ctr,aes256-ctr,aes128-gcm@openssh.com,aes256-gcm@openssh.com\nMACs umac-64@openssh.com,umac-128@openssh.com,hmac-sha2-256,hmac-sha2-512\n```\n\n- For Openshift Container Platform 4:\nPlease refer the KCS[1] document for verifying the fix in RHCOS.\n\n[1] https://access.redhat.com/solutions/7071748",
"product_ids": [
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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"products": [
"Red Hat JBoss Enterprise Application Platform 7"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "ssh: Prefix truncation attack on Binary Packet Protocol (BPP)"
},
{
"acknowledgments": [
{
"names": [
"AAIB IT Unix Team"
]
}
],
"cve": "CVE-2024-1459",
"cwe": {
"id": "CWE-24",
"name": "Path Traversal: \u0027../filedir\u0027"
},
"discovery_date": "2024-01-18T00:00:00+00:00",
"ids": [
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"system_name": "Red Hat Bugzilla ID",
"text": "2259475"
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"notes": [
{
"category": "description",
"text": "A path traversal vulnerability was found in Undertow. This issue may allow a remote attacker to append a specially-crafted sequence to an HTTP request for an application deployed to JBoss EAP, which may permit access to privileged or restricted files and directories.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "undertow: directory traversal vulnerability",
"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": [
"Red Hat JBoss Enterprise Application Platform 7"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2024-1459"
},
{
"category": "external",
"summary": "RHBZ#2259475",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2259475"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2024-1459",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-1459"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-1459",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-1459"
}
],
"release_date": "2024-01-18T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-04-04T15:22:45+00:00",
"details": "Before applying the update, make sure all previously released errata relevant to your system have been applied.\nAlso, back up your existing installation, including all applications, configuration files, databases and database settings.\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat JBoss Enterprise Application Platform 7"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2024:1677"
},
{
"category": "workaround",
"details": "Mitigation for this issue is either not available or the currently available options don\u0027t meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.",
"product_ids": [
"Red Hat JBoss Enterprise Application Platform 7"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"products": [
"Red Hat JBoss Enterprise Application Platform 7"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "undertow: directory traversal vulnerability"
},
{
"cve": "CVE-2024-1635",
"cwe": {
"id": "CWE-400",
"name": "Uncontrolled Resource Consumption"
},
"discovery_date": "2024-02-19T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2264928"
}
],
"notes": [
{
"category": "description",
"text": "A vulnerability was found in Undertow. This vulnerability impacts a server that supports the wildfly-http-client protocol. Whenever a malicious user opens and closes a connection with the HTTP port of the server and then closes the connection immediately, the server will end with both memory and open file limits exhausted at some point, depending on the amount of memory available. \r\n\r\nAt HTTP upgrade to remoting, the WriteTimeoutStreamSinkConduit leaks connections if RemotingConnection is closed by Remoting ServerConnectionOpenListener. Because the remoting connection originates in Undertow as part of the HTTP upgrade, there is an external layer to the remoting connection. This connection is unaware of the outermost layer when closing the connection during the connection opening procedure. Hence, the Undertow WriteTimeoutStreamSinkConduit is not notified of the closed connection in this scenario. Because WriteTimeoutStreamSinkConduit creates a timeout task, the whole dependency tree leaks via that task, which is added to XNIO WorkerThread. So, the workerThread points to the Undertow conduit, which contains the connections and causes the leak.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "undertow: Out-of-memory Error after several closed connections with wildfly-http-client protocol",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is rated as Important due to the fact that this might be an unauthenticated remote issue exploited by a malicious user, causing a denial of service (DoS) to the affected server.",
"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": [
"Red Hat JBoss Enterprise Application Platform 7"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2024-1635"
},
{
"category": "external",
"summary": "RHBZ#2264928",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2264928"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2024-1635",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-1635"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2024-1635",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-1635"
}
],
"release_date": "2023-10-27T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2024-04-04T15:22:45+00:00",
"details": "Before applying the update, make sure all previously released errata relevant to your system have been applied.\nAlso, back up your existing installation, including all applications, configuration files, databases and database settings.\nFor details on how to apply this update, refer to: https://access.redhat.com/articles/11258",
"product_ids": [
"Red Hat JBoss Enterprise Application Platform 7"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2024:1677"
},
{
"category": "workaround",
"details": "No mitigation is currently available for this vulnerability. However, there might be some protections, such as request limits by a load balancer in front of JBoss EAP/Wildfly or even Undertow, that could minimize the impact.",
"product_ids": [
"Red Hat JBoss Enterprise Application Platform 7"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat JBoss Enterprise Application Platform 7"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "undertow: Out-of-memory Error after several closed connections with wildfly-http-client protocol"
}
]
}
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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.