CVE-2021-32817

描述

express-hbs is an Express handlebars template engine. express-hbs mixes pure template data with engine configuration options through the Express render API. More specifically, the layout parameter may trigger file disclosure vulnerabilities in downstream applications. This potential vulnerability is somewhat restricted in that only files with existing extentions (i.e. file.extension) can be included, files that lack an extension will have .hbs appended to them. For complete details refer to the referenced GHSL-2021-019 report. Notes in documentation have been added to help users of express-hbs avoid this potential information exposure vulnerability.

如何修補 CVE-2021-32817

要修補 CVE-2021-32817,請將受影響套件升級到下列已修補版本。

• —升級至 5.3.3 或更新版本
• —未列出修補版本

CVE-2021-32817 正在被利用嗎?

低 — EPSS 為 1.3%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• from 0, < 5.3.3
• from 0, <= 2.4.0

CVSS 分數

參考連結(7)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-32817
• ADVISORYsecuritylab.github.com/advisories/GHSL-2021-019-express-hbs
• PATCHgithub.com/TryGhost/express-hbs
• WEBgithub.com/TryGhost/express-hbs#%EF%B8%8F-this-creates-a-potential-security-vulnerability