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CVE-2019-20104

Quick assessment

Affected
Atlassian Crowd
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.

Atlassian Crowd是澳大利亚Atlassian公司的一套基于Web的单点登录系统。该系统为多用户、网络应用程序和目录服务器提供验证、授权等功能。 Atlassian Crowd 3.6.2之前版本和3.7.0至3.7.1版本中的OpenID客户端存在安全漏洞。攻击者可借助特制的URL利用该漏洞造成拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 2.43% · P83

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2019-20104

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The OpenID client application in Atlassian Crowd before version 3.6.2, and from version 3.7.0 before 3.7.1 allows remote attackers to perform a Denial of Service attack via an XML Entity Expansion vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Atlassian Crowd 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Atlassian Crowd是澳大利亚Atlassian公司的一套基于Web的单点登录系统。该系统为多用户、网络应用程序和目录服务器提供验证、授权等功能。 Atlassian Crowd 3.6.2之前版本和3.7.0至3.7.1版本中的OpenID客户端存在安全漏洞。攻击者可借助特制的URL利用该漏洞造成拒绝服务。
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
Atlassian Crowd unspecified ~ 3.6.2 -

II. Public POCs for CVE-2019-20104

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III. Intelligence Information for CVE-2019-20104

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Security Blog Posts for CVE-2019-20104 (1)

Other References for CVE-2019-20104 (1)

Same Patch Batch · Atlassian · 2020-02-06 · 9 CVEs total

CVE-2019-20106 Atlassian Jira Server和Data Center 安全漏洞
CVE-2019-20400 Atlassian Jira 代码问题漏洞
CVE-2019-20401 Atlassian Jira 跨站请求伪造漏洞
CVE-2019-20402 Atlassian JIRA Server和Data Center 授权问题漏洞
CVE-2019-20403 Atlassian JIRA Server和Data Center 信息泄露漏洞
CVE-2019-20404 Atlassian JIRA Server和Data Center 授权问题漏洞
CVE-2019-20405 Atlassian JIRA Server和Data Center 跨站请求伪造漏洞
CVE-2019-20406 Atlassian Confluence 代码问题漏洞

IV. Related Vulnerabilities

Same product: Crowd
Same vendor: Atlassian

V. Comments for CVE-2019-20104

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