CVE-2020-8031— obs: Stored XSS
Quick assessment
Affected
openSUSE Open Build Service
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 Build Service（OBS）是Open Build Service组织的一套通用的、以自动、一致和可重复的方式从源代码构建和分发软件包的系统。 Open Build Service中存在跨站脚本漏洞，该漏洞源于WEB应用缺少对客户端数据的正确验证。攻击者可利用该漏洞执行客户端代码。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2020-8031
Vulnerability Information
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Vulnerability Title
obs: Stored XSS
Source: CVE Program / CVE List V5
Vulnerability Description
A Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Open Build Service allows remote attackers to store JS code in markdown that is not properly escaped, impacting confidentiality and integrity. This issue affects: Open Build Service versions prior to 2.10.8.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/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
Open Build Service 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open Build Service（OBS）是Open Build Service组织的一套通用的、以自动、一致和可重复的方式从源代码构建和分发软件包的系统。 Open Build Service中存在跨站脚本漏洞，该漏洞源于WEB应用缺少对客户端数据的正确验证。攻击者可利用该漏洞执行客户端代码。
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 |
|---|---|---|---|---|
| openSUSE | Open Build Service | Open Build Service ~ 2.10.8 | - |
|
II. Public POCs for CVE-2020-8031
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2020-8031 (1)
-
https://bugzilla.suse.com/show_bug.cgi?id=1178880 x_refsource_CONFIRM
IV. Related Vulnerabilities
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V. Comments for CVE-2020-8031
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