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CVE-2020-1766— Improper handling of uploaded inline images

Quick assessment

Affected
OTRS AG ((OTRS)) Community Edition
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.

Open-source Ticket Request System（OTRS）是德国OTRS集团的一套开源缺陷跟踪管理系统软件。该软件将电话，邮件等各种渠道提交进来的服务请求归类为不同的队列、服务级别，服务人员通过OTRS系统来跟踪和回复客户。 OTRS（社区版）5.0.40之前的5.0.x版本、6.0.25之前的6.0.x版本和OTRS 7.0.14之前的7.0.x版本中存在安全漏洞，该漏洞源于程序没有正确处理上传的图像。攻击者可借助特制的SVG文件利用该漏洞执行恶意的JavaScript代码。

CVSS 2.0 · Low EPSS 1.23% · P68
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I. Basic Information for CVE-2020-1766

Vulnerability Information
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Vulnerability Title
Improper handling of uploaded inline images
Source: CVE Program / CVE List V5
Vulnerability Description
Due to improper handling of uploaded images it is possible in very unlikely and rare conditions to force the agents browser to execute malicious javascript from a special crafted SVG file rendered as inline jpg file. This issue affects: ((OTRS)) Community Edition 5.0.x version 5.0.39 and prior versions; 6.0.x version 6.0.24 and prior versions. OTRS 7.0.x version 7.0.13 and prior versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
OTRS 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open-source Ticket Request System（OTRS）是德国OTRS集团的一套开源缺陷跟踪管理系统软件。该软件将电话，邮件等各种渠道提交进来的服务请求归类为不同的队列、服务级别，服务人员通过OTRS系统来跟踪和回复客户。 OTRS（社区版）5.0.40之前的5.0.x版本、6.0.25之前的6.0.x版本和OTRS 7.0.14之前的7.0.x版本中存在安全漏洞，该漏洞源于程序没有正确处理上传的图像。攻击者可借助特制的SVG文件利用该漏洞执行恶意的JavaScript代码。
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)) Community Edition 5.0.x version 5.0.39 and prior versions -
OTRS AG OTRS 7.0.x version 7.0.13 and prior versions -

II. Public POCs for CVE-2020-1766

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III. Intelligence Information for CVE-2020-1766

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Mailing List Discussions for CVE-2020-1766 (5)

Other References for CVE-2020-1766 (1)

Same Patch Batch · OTRS AG · 2020-01-10 · 3 CVEs total

CVE-2020-1767 3.5 LOW Possible to send drafted messages as wrong agent
CVE-2020-1765 3.5 LOW Spoofing of From field in several screens

IV. Related Vulnerabilities

Same product: ((OTRS)) Community Edition
Same vendor: OTRS AG
Same weakness: CWE-79

V. Comments for CVE-2020-1766

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