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CVE-2020-1778— Bypassing user account validation

Quick assessment

Affected
OTRS AG OTRS
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.

OTRS ITSM是德国OTRS公司的一套IT服务管理组织的基础解决方案。该方案以ITIL最佳实践为基础，提供请求和故障管理、问题管理、变更管理和发布管理的管理工具。 OTRS ITSM 8.0.9版本及之前版本存在安全漏洞，该漏洞源于使用多个后端进行用户身份验证(使用LDAP)时，即使帐户被设置为无效，代理也能够登录。

CVSS 4.1 · Medium EPSS 0.65% · P48

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2020-1778

Vulnerability Information
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Vulnerability Title
Bypassing user account validation
Source: CVE Program / CVE List V5
Vulnerability Description
When OTRS uses multiple backends for user authentication (with LDAP), agents are able to login even if the account is set to invalid. This issue affects OTRS; 8.0.9 and prior versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
OTRS ITSM 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OTRS ITSM是德国OTRS公司的一套IT服务管理组织的基础解决方案。该方案以ITIL最佳实践为基础，提供请求和故障管理、问题管理、变更管理和发布管理的管理工具。 OTRS ITSM 8.0.9版本及之前版本存在安全漏洞，该漏洞源于使用多个后端进行用户身份验证(使用LDAP)时，即使帐户被设置为无效，代理也能够登录。
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
OTRS AG OTRS 8.0.x ~ 8.0.9 -

II. Public POCs for CVE-2020-1778

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III. Intelligence Information for CVE-2020-1778

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Other References for CVE-2020-1778 (1)

IV. Related Vulnerabilities

Same product: OTRS
Same vendor: OTRS AG
Same weakness: CWE-287

V. Comments for CVE-2020-1778

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