CVE-2015-4020
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.
Risk Information
Base Score
8.2
MODERATE
Vector
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
EPSS Score
Exploitation Probability
0.524
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Vulnerabilities CVE-2015-4020 are fixed in Ruby-rubygems-update 2.0.17 | Windows |
| Vulnerabilities CVE-2015-4020 are fixed in Ruby-rubygems-update 2.2.5 | Windows |
| Vulnerabilities CVE-2015-4020 are fixed in Ruby-rubygems-update 2.4.8 | Windows |
| Vulnerabilities CVE-2015-4020 are fixed in Ruby-rubygems-update for Linux 2.0.17 | Linux |
| Vulnerabilities CVE-2015-4020 are fixed in Ruby-rubygems-update for Linux 2.2.5 | Linux |
| Vulnerabilities CVE-2015-4020 are fixed in Ruby-rubygems-update for Linux 2.4.8 | Linux |
Patch Details
No records foundReferences
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234