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CVE-2017-18106

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 2.9.1之前版本中存在授权问题漏洞，该漏洞源于网络系统或产品中缺少身份验证措施或身份验证强度不足。

AI Predicted 7.5 Difficulty: Moderate EPSS 1.36% · P69
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I. Basic Information for CVE-2017-18106

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The identifier_hash for a session token in Atlassian Crowd before version 2.9.1 could potentially collide with an identifier_hash for another user or a user in a different directory, this allows remote attackers who can authenticate to Crowd or an application using Crowd for authentication to gain access to another user's session provided they can make their identifier hash collide with another user's session identifier hash.
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 授权问题漏洞
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 2.9.1之前版本中存在授权问题漏洞，该漏洞源于网络系统或产品中缺少身份验证措施或身份验证强度不足。
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 ~ 2.9.1 -

II. Public POCs for CVE-2017-18106

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III. Intelligence Information for CVE-2017-18106

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Other References for CVE-2017-18106 (1)

Same Patch Batch · Atlassian · 2019-03-29 · 6 CVEs total

CVE-2017-18105 Atlassian Crowd 授权问题漏洞
CVE-2017-18108 Atlassian Crowd 代码注入漏洞
CVE-2017-18109 Atlassian Crowd 输入验证错误漏洞
CVE-2017-18110 Atlassian Crowd 代码问题漏洞
CVE-2017-18111 Atlassian Application Links 代码问题漏洞

IV. Related Vulnerabilities

Same product: Crowd
Same vendor: Atlassian

V. Comments for CVE-2017-18106

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