Detections
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SCA: security update for rubygems-update (GHSA-wp3j-rvfp-624h)

critical Tenable Cloud Security Plugin ID 420021

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - RubyGems 2.0.x before 2.0.16, 2.2.x before 2.2.4, and 2.4.x before 2.4.7 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, aka a "DNS hijack attack." (CVE-2015-3900)

See Also

https://github.com/advisories/GHSA-wp3j-rvfp-624h

Plugin Details

Severity: Critical

ID: 420021

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 1/28/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.15

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

CVSS Score Source: CVE-2015-3900

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/14/2022

Vulnerability Publication Date: 6/16/2015

Reference Information

CVE: CVE-2015-3900

BID: 75482

cwe: CWE-350