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CVE-2021-26081

Quick assessment

Affected
Atlassian Jira Server
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 JIRA Server是澳大利亚Atlassian公司的一套缺陷跟踪管理系统的服务器版本。该系统主要用于对工作中各类问题、缺陷进行跟踪管理。 Atlassian Jira Server和Jira Data Center的REST API存在安全漏洞，该漏洞允许远程攻击者可利用该漏洞通过“REST API最新用户化身临时”端点的敏感数据暴露漏洞枚举用户名。以下产品和版本受到影响:Atlassian Jira Server和Jira Data Center的REST API在8.5.14版

AI Predicted 5.3 Difficulty: Easy EPSS 1.18% · P67
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I. Basic Information for CVE-2021-26081

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
REST API in Atlassian Jira Server and Jira Data Center before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1 allows remote attackers to enumerate usernames via a Sensitive Data Exposure vulnerability in the `/rest/api/latest/user/avatar/temporary` endpoint.
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 JIRA Server 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Atlassian JIRA Server是澳大利亚Atlassian公司的一套缺陷跟踪管理系统的服务器版本。该系统主要用于对工作中各类问题、缺陷进行跟踪管理。 Atlassian Jira Server和Jira Data Center的REST API存在安全漏洞，该漏洞允许远程攻击者可利用该漏洞通过“REST API最新用户化身临时”端点的敏感数据暴露漏洞枚举用户名。以下产品和版本受到影响:Atlassian Jira Server和Jira Data Center的REST API在8.5.14版
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 Jira Server unspecified ~ 8.5.14 -
Atlassian Jira Data Center unspecified ~ 8.5.14 -

II. Public POCs for CVE-2021-26081

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III. Intelligence Information for CVE-2021-26081

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Other References for CVE-2021-26081 (1)

Same Patch Batch · Atlassian · 2021-07-20 · 3 CVEs total

CVE-2021-26083 Atlassian JIRA Server 跨站脚本漏洞
CVE-2021-26082 Atlassian JIRA Server 跨站脚本漏洞

IV. Related Vulnerabilities

Same product: Jira Server
Same vendor: Atlassian

V. Comments for CVE-2021-26081

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