RubyGems up to 2.0.15/2.2.3/2.4.6 DNS 7pk security

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in RubyGems up to 2.0.15/2.2.3/2.4.6. It has been rated as critical. This issue affects some unknown processing of the component DNS Handler. This manipulation causes 7pk security. The identification of this vulnerability is CVE-2015-3900. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in RubyGems up to 2.0.15/2.2.3/2.4.6 (Programming Language Software). Affected by this vulnerability is an unknown function of the component DNS Handler. The manipulation with an unknown input leads to a 7pk security vulnerability. The CWE definition for the vulnerability is CWE-254. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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 request, which allows remote attackers to redirect requests to arbitrary domains via a crafted DNS SRV record, aka a "DNS hijack attack."

The weakness was shared 06/24/2015 by Jonathan Claudius (Website). The advisory is shared at blog.rubygems.org. This vulnerability is known as CVE-2015-3900 since 05/12/2015. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1211 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 83513 (FreeBSD : rubygems -- request hijacking vulnerability (a0089e18-fc9e-11e4-bc58-001e67150279)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350155 (Amazon Linux Security Advisory for ruby20: ALAS-2015-547).

Upgrading to version 2.0.16, 2.2.4 or 2.4.7 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (83513), SecurityFocus (BID 75482†) and Vulnerability Center (SBV-50316†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.6
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: 7pk security
CWE: CWE-254
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 83513
Nessus Name: FreeBSD : rubygems -- request hijacking vulnerability (a0089e18-fc9e-11e4-bc58-001e67150279)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: ALAS-2015-549
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: RubyGems 2.0.16/2.2.4/2.4.7

Timelineinfo

05/12/2015 🔍
05/18/2015 +6 days 🔍
05/20/2015 +2 days 🔍
05/27/2015 +7 days 🔍
06/24/2015 +28 days 🔍
06/24/2015 +0 days 🔍
06/24/2015 +0 days 🔍
06/25/2015 +1 days 🔍
05/21/2022 +2522 days 🔍

Sourcesinfo

Advisory: RHSA-2015:1657
Researcher: Jonathan Claudius
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-3900 (🔍)
GCVE (CVE): GCVE-0-2015-3900
GCVE (VulDB): GCVE-100-76069
SecurityFocus: 75482 - RubyGems CVE-2015-3900 Security Bypass Vulnerability
Vulnerability Center: 50316 - RubyGems Remote DNS Hijacking due to Improper Validation of Hostname Returned in the SRV Record, Medium

Entryinfo

Created: 06/25/2015 09:31
Updated: 05/21/2022 17:55
Changes: 06/25/2015 09:31 (63), 06/29/2017 07:33 (10), 05/21/2022 17:48 (3), 05/21/2022 17:55 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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