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CVE-2020-26284— Hugo can execute a binary from the current directory on Windows

Quick assessment

Affected
gohugoio hugo
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.

Gohugoio Hugo是Gohugoio社区的一款基于Go语言用于快速生成静态站点的框架。 Hugo 0.79.1之前版本存在操作系统命令注入漏洞，该漏洞源于如果在运行Hugo时在当前工作目录中发现同名恶意文件(exe或bat)，则会调用该恶意命令而不是系统命令。在不受信任的hugo网站中运行“hugo”的Windows用户将受到影响。

CVSS 7.7 · High EPSS 1.47% · P74
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I. Basic Information for CVE-2020-26284

Vulnerability Information
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Vulnerability Title
Hugo can execute a binary from the current directory on Windows
Source: CVE Program / CVE List V5
Vulnerability Description
Hugo is a fast and Flexible Static Site Generator built in Go. Hugo depends on Go's `os/exec` for certain features, e.g. for rendering of Pandoc documents if these binaries are found in the system `%PATH%` on Windows. In Hugo before version 0.79.1, if a malicious file with the same name (`exe` or `bat`) is found in the current working directory at the time of running `hugo`, the malicious command will be invoked instead of the system one. Windows users who run `hugo` inside untrusted Hugo sites are affected. Users should upgrade to Hugo v0.79.1. Other than avoiding untrusted Hugo sites, there is no workaround.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Gohugoio Hugo 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gohugoio Hugo是Gohugoio社区的一款基于Go语言用于快速生成静态站点的框架。 Hugo 0.79.1之前版本存在操作系统命令注入漏洞，该漏洞源于如果在运行Hugo时在当前工作目录中发现同名恶意文件(exe或bat)，则会调用该恶意命令而不是系统命令。在不受信任的hugo网站中运行“hugo”的Windows用户将受到影响。
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
gohugoio hugo < 0.79.1 -

II. Public POCs for CVE-2020-26284

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III. Intelligence Information for CVE-2020-26284

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Vendor Advisories for CVE-2020-26284 (1)

Other References for CVE-2020-26284 (1)

IV. Related Vulnerabilities

Same product: hugo
Same vendor: gohugoio
Same weakness: CWE-78