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CVE-2023-1973— Undertow: unrestricted request storage leads to memory exhaustion

Quick assessment

Affected
Red Hat Red Hat JBoss Enterprise Application Platform 7
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Red Hat Undertow是美国红帽（Red Hat）公司的一款基于Java的嵌入式Web服务器，是Wildfly（Java应用服务器）默认的Web服务器。 Red Hat Undertow 存在安全漏洞。攻击者利用该漏洞通过发送特制的请求来触发拒绝服务，从而导致服务器出现 OutofMemory 错误，耗尽服务器的内存。

CVSS 7.5 · High EPSS 1.28% · P69

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2023-1973

Vulnerability Information
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Vulnerability Title
Undertow: unrestricted request storage leads to memory exhaustion
Source: CVE Program / CVE List V5
Vulnerability Description
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's memory.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Undertow 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Red Hat Undertow是美国红帽（Red Hat）公司的一款基于Java的嵌入式Web服务器，是Wildfly（Java应用服务器）默认的Web服务器。 Red Hat Undertow 存在安全漏洞。攻击者利用该漏洞通过发送特制的请求来触发拒绝服务，从而导致服务器出现 OutofMemory 错误，耗尽服务器的内存。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat JBoss Enterprise Application Platform 7 - cpe:/a:redhat:jboss_enterprise_application_platform:7.4
Red Hat Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8 0:2.2.30-1.SP1_redhat_00001.1.el8eap ~ * cpe:/a:redhat:jboss_enterprise_application_platform:7.4::el8
Red Hat Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9 0:2.2.30-1.SP1_redhat_00001.1.el9eap ~ * cpe:/a:redhat:jboss_enterprise_application_platform:7.4::el9
Red Hat Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7 0:2.2.30-1.SP1_redhat_00001.1.el7eap ~ * cpe:/a:redhat:jboss_enterprise_application_platform:7.4::el7
Red Hat Red Hat JBoss Enterprise Application Platform 8 - cpe:/a:redhat:jboss_enterprise_application_platform:8.0
Red Hat Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8 0:2.3.11-1.SP1_redhat_00001.1.el8eap ~ * cpe:/a:redhat:jboss_enterprise_application_platform:8.0::el9
Red Hat Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9 0:2.3.11-1.SP1_redhat_00001.1.el9eap ~ * cpe:/a:redhat:jboss_enterprise_application_platform:8.0::el9

II. Public POCs for CVE-2023-1973

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III. Intelligence Information for CVE-2023-1973

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Vendor Advisories for CVE-2023-1973 (3)

IV. Related Vulnerabilities

Same product: Red Hat JBoss Enterprise Application Platform 7
Same vendor: Red Hat
Same weakness: CWE-20

V. Comments for CVE-2023-1973

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