RHSA-2017:1409
Vulnerability from csaf_redhat - Published: 2017-06-07 16:37 - Updated: 2026-05-14 22:23It was discovered that under certain conditions RESTEasy could be forced to parse a request with YamlProvider, resulting in unmarshalling of potentially untrusted data. An attacker could possibly use this flaw execute arbitrary code with the permissions of the application using RESTEasy.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Red Hat JBoss EAP 7
Red Hat / Red Hat JBoss Enterprise Application Platform
|
cpe:/a:redhat:jboss_enterprise_application_platform:7
|
— |
Vendor Fix
fix
Workaround
|
It was found that the log file viewer in Red Hat JBoss Enterprise Application 6 and 7 allows arbitrary file read to authenticated user via path traversal.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Red Hat JBoss EAP 7
Red Hat / Red Hat JBoss Enterprise Application Platform
|
cpe:/a:redhat:jboss_enterprise_application_platform:7
|
— |
Vendor Fix
fix
|
It was discovered that the code that parsed the HTTP request line permitted invalid characters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Red Hat JBoss EAP 7
Red Hat / Red Hat JBoss Enterprise Application Platform
|
cpe:/a:redhat:jboss_enterprise_application_platform:7
|
— |
Vendor Fix
fix
|
It was found that with non-clean TCP close, Websocket server gets into infinite loop on every IO thread, effectively causing DoS.
| Product | Identifier | Version | Remediation |
|---|---|---|---|
|
Red Hat JBoss EAP 7
Red Hat / Red Hat JBoss Enterprise Application Platform
|
cpe:/a:redhat:jboss_enterprise_application_platform:7
|
— |
Vendor Fix
fix
|
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"title": "Vulnerability description"
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{
"category": "summary",
"text": "Resteasy: Yaml unmarshalling vulnerable to RCE",
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"text": "YamlProvider was removed the default list of providers to prevent a malicous user from requesting a payload be marshalled with Yaml. If marshalling of Yaml content is desired, add, or append a file with the name \u0027META-INF/services/javax.ws.rs.ext.Providers\u0027 to your WAR, or JAR with the contents \u0027org.jboss.resteasy.plugins.providers.YamlProvider\u0027\n\nIf YamlProvider is re-added to the default list of providers it\u0027s recommended to add authentication, and authorization to the endpoint expecting Yaml content to prevent exploitation of this vulnerablilty.",
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"privilegesRequired": "LOW",
"scope": "CHANGED",
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"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.0"
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"products": [
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]
}
],
"threats": [
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"category": "impact",
"details": "Moderate"
}
],
"title": "undertow: IO thread DoS via unclean Websocket closing"
}
]
}
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.