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CVE-2017-16858

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。crowd-application plugin module是其中的一个SSO管理插件。 Atlassian Crowd 1.5.0版本至3.1.2版本（不包括3.1.2版本）中的crowd-application插件模块存在安全漏洞。攻击者可利用该漏洞在REST请求中伪造Crowd用户。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.57% · P44
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I. Basic Information for CVE-2017-16858

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The 'crowd-application' plugin module (notably used by the Google Apps plugin) in Atlassian Crowd from version 1.5.0 before version 3.1.2 allowed an attacker to impersonate a Crowd user in REST requests by being able to authenticate to a directory bound to an application using the feature. Given the following situation: the Crowd application is bound to directory 1 and has a user called admin and the Google Apps application is bound to directory 2, which also has a user called admin, it was possible to authenticate REST requests using the credentials of the user coming from directory 2 and impersonate the user from directory 1.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Atlassian Crowd crowd-application插件模块安全漏洞
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。crowd-application plugin module是其中的一个SSO管理插件。 Atlassian Crowd 1.5.0版本至3.1.2版本（不包括3.1.2版本）中的crowd-application插件模块存在安全漏洞。攻击者可利用该漏洞在REST请求中伪造Crowd用户。
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 from 1.5.0 before 3.1.2 -

II. Public POCs for CVE-2017-16858

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III. Intelligence Information for CVE-2017-16858

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Other References for CVE-2017-16858 (1)

IV. Related Vulnerabilities

Same product: Crowd
Same vendor: Atlassian
Same weakness: CWE-863

V. Comments for CVE-2017-16858

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