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CVE-2020-27782

Quick assessment

Affected
n/a Undertow
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 存在资源管理错误漏洞，攻击者可利用该漏洞通过特殊字符查询触发致命错误，以触发拒绝服务。以下产品和版本受到影响：affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.

AI Predicted 5.3 Difficulty: Moderate EPSS 1.38% · P71

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-27782

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the Undertow AJP connector. Malicious requests and abrupt connection closes could be triggered by an attacker using query strings with non-RFC compliant characters resulting in a denial of service. The highest threat from this vulnerability is to system availability. This affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Vulnerability Title
Red Hat Undertow 资源管理错误漏洞
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 存在资源管理错误漏洞，攻击者可利用该漏洞通过特殊字符查询触发致命错误，以触发拒绝服务。以下产品和版本受到影响：affects Undertow 2.1.5.SP1, 2.0.33.SP2, and 2.2.3.SP1.
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
- Undertow 2.1.5.SP1 -

II. Public POCs for CVE-2020-27782

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III. Intelligence Information for CVE-2020-27782

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Vendor Advisories for CVE-2020-27782 (1)

Same Patch Batch · n/a · 2021-02-23 · 56 CVEs total

CVE-2020-28429 7.3 HIGH Command Injection
CVE-2020-28587 SoftMaker Office PlanMaker 缓冲区错误漏洞
CVE-2021-3405 Matroska libebml 缓冲区错误漏洞
CVE-2021-3410 libcaca 输入验证错误漏洞
CVE-2021-3407 artifex mupdf 资源管理错误漏洞
CVE-2021-20182 Red Hat openshift4/ose-docker-builder 安全漏洞
CVE-2021-20252 Red Hat scale API Management Platform 输入验证错误漏洞
CVE-2021-20247 Sourceforge mbsync 路径遍历漏洞
CVE-2020-8297 Nextcloud Deck 安全漏洞
CVE-2021-22882 UniFi Protect 资源管理错误漏洞
CVE-2021-22112 Vmware VMware Spring Security 权限许可和访问控制问题漏洞
CVE-2020-7120 Aruba ClearPass Policy Manager 安全漏洞
CVE-2021-26677 Aruba ClearPass Policy Manager 安全漏洞
CVE-2021-26679 Aruba ClearPass Policy Manager 命令注入漏洞
CVE-2021-26680 Aruba ClearPass Policy Manager 命令注入漏洞
CVE-2021-27582 MITREid Connect 安全漏洞
CVE-2021-26678 Aruba ClearPass Policy Manager Prior 跨站脚本漏洞
CVE-2021-22651 Luxion KeyShot 路径遍历漏洞
CVE-2021-20198 Red Hat OpenShift Container Platform 访问控制错误漏洞
CVE-2021-26926 JasPer 缓冲区错误漏洞

Showing top 20 of 56 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Undertow
Same vendor: n/a
Same weakness: CWE-400

V. Comments for CVE-2020-27782

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