CVE-2015-4020
Quick assessment
Affected
n/a n/a
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.
RubyGems是RubyGems组织的一款Ruby程序包管理器，它主要用于发布和管理Ruby程序包。 RubyGems中存在安全漏洞，该漏洞源于程序提取gem或创建API请求时没有正确验证域名。远程攻击者可借助特制的DNS SRV记录利用该漏洞将请求重定向到任意域。以下版本受到影响：RubyGems 2.0.17之前2.0.x版本，2.2.5之前2.2.x版本，2.4.8之前2.4.x版本。
Possible ATT&CK Techniques 1 AI
T1019
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I. Basic Information for CVE-2015-4020
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
RubyGems 2.0.x before 2.0.17, 2.2.x before 2.2.5, and 2.4.x before 2.4.8 does not validate the hostname when fetching gems or making API requests, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record with a domain that is suffixed with the original domain name, aka a "DNS hijack attack." NOTE: this vulnerability exists because to an incomplete fix for CVE-2015-3900.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
RubyGems 权限许可和访问控制漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RubyGems是RubyGems组织的一款Ruby程序包管理器，它主要用于发布和管理Ruby程序包。 RubyGems中存在安全漏洞，该漏洞源于程序提取gem或创建API请求时没有正确验证域名。远程攻击者可借助特制的DNS SRV记录利用该漏洞将请求重定向到任意域。以下版本受到影响：RubyGems 2.0.17之前2.0.x版本，2.2.5之前2.2.x版本，2.4.8之前2.4.x版本。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2015-4020
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2015-4020 (1)
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https://github.com/rubygems/rubygems/commit/5c7bfb5 x_refsource_CONFIRM
Vendor Advisories for CVE-2015-4020 (1)
Security Blog Posts for CVE-2015-4020 (2)
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http://blog.rubygems.org/2015/06/08/2.2.5-released.html x_refsource_CONFIRM
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http://blog.rubygems.org/2015/06/08/2.4.8-released.html x_refsource_CONFIRM
Other References for CVE-2015-4020 (2)
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http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html x_refsource_CONFIRM
Same Patch Batch · n/a · 2015-08-25 · 8 CVEs total
| CVE-2012-2150 | xfsprogs xfs_metadump 本地信息泄露漏洞 | |
| CVE-2015-5161 | Zend ZendXml和Zend Framework XML外部实体注入漏洞 | |
| CVE-2015-5949 | VideoLAN VLC Media Player 缓冲区溢出漏洞 | |
| CVE-2015-3269 | Adobe LiveCycle Data Services Apache Flex BlazeDS 信息泄露漏洞 | |
| CVE-2015-5785 | Apple QuickTime 缓冲区溢出漏洞 | |
| CVE-2015-5786 | Apple QuickTime 缓冲区溢出漏洞 | |
| CVE-2015-6262 | Cisco Prime Infrastructure 跨站请求伪造漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2015-4020
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