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CVE-2023-40165— RubyGems 输入验证错误漏洞

一分钟漏洞结论

影响对象
rubygems rubygems.org
利用判断
存在公开或 AI PoC，应优先验证
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

RubyGems是RubyGems组织的一款Ruby程序包管理器。该产品主要用于发布和管理Ruby程序包。 RubyGems存在输入验证错误漏洞，该漏洞源于输入验证不足，允许恶意行为者替换文件。

CVSS 7.4 · High EPSS 0.46% · P38
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一、 漏洞 CVE-2023-40165 基础信息

漏洞信息
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Vulnerability Title
Unauthorized gem replacement for full names ending in numbers on rubygems.org
来源: CVE Program / CVE List V5
Vulnerability Description
rubygems.org is the Ruby community's primary gem (library) hosting service. Insufficient input validation allowed malicious actors to replace any uploaded gem version that had a platform, version number, or gem name matching `/-\d/`, permanently replacing the legitimate upload in the canonical gem storage bucket, and triggering an immediate CDN purge so that the malicious gem would be served immediately. The maintainers have checked all gems matching the `/-\d/` pattern and can confirm that no unexpected `.gem`s were found. As a result, we believe this vulnerability was _not_ exploited. The easiest way to ensure that a user's applications were not exploited by this vulnerability is to check that all of your downloaded .gems have a checksum that matches the checksum recorded in the RubyGems.org database. RubyGems contributor Maciej Mensfeld wrote a tool to automatically check that all downloaded .gem files match the checksums recorded in the RubyGems.org database. You can use it by running: `bundle add bundler-integrity` followed by `bundle exec bundler-integrity`. Neither this tool nor anything else can prove you were not exploited, but the can assist your investigation by quickly comparing RubyGems API-provided checksums with the checksums of files on your disk. The issue has been patched with improved input validation and the changes are live. No action is required on the part of the user. Users are advised to validate their local gems.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
来源: CVE Program / CVE List V5
Vulnerability Title
RubyGems 输入验证错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
RubyGems是RubyGems组织的一款Ruby程序包管理器。该产品主要用于发布和管理Ruby程序包。 RubyGems存在输入验证错误漏洞，该漏洞源于输入验证不足，允许恶意行为者替换文件。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD

受影响产品

厂商 产品 影响版本 CPE 订阅
rubygems rubygems.org < 2023-08-14 -

二、漏洞 CVE-2023-40165 的公开POC

# POC 描述 源链接 神龙链接
AI 生成 POC 高级
Qwen3.6-35B-A3B · 3843 chars
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完整可执行 POC 代码
利用链与缓解建议
POC 打包下载
每月 100+ 条 AI 生成额度

三、漏洞 CVE-2023-40165 的情报信息

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CVE-2023-40165 补丁与修复 (1)

CVE-2023-40165 厂商安全公告 (1)

IV. Related Vulnerabilities

Same product: rubygems.org
Same vendor: rubygems
Same weakness: CWE-20

V. Comments for CVE-2023-40165

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