Ruby up to 2.0.0 Fiddle / DL modules $SAFE access control

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Ruby up to 2.0.0. The affected element is an unknown function of the component Fiddle / DL modules. Performing a manipulation of the argument $SAFE as part of Eingabe results in access control. This vulnerability is identified as CVE-2013-2065. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, was found in Ruby up to 2.0.0 (Programming Language Software). This affects an unknown functionality of the component Fiddle / DL modules. The manipulation of the argument $SAFE as part of a Eingabe leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

(1) DL and (2) Fiddle in Ruby 1.9 before 1.9.3 patchlevel 426, and 2.0 before 2.0.0 patchlevel 195, do not perform taint checking for native functions, which allows context-dependent attackers to bypass intended $SAFE level restrictions.

The weakness was released 05/14/2013 by Vit Ondruch as not defined advisory (Website). It is possible to read the advisory at ruby-lang.org. The public release was coordinated with the project team. This vulnerability is uniquely identified as CVE-2013-2065 since 02/19/2013. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 70684 (Puppet Enterprise < 3.1.0 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195876 (Ubuntu Security Notification for Ruby1.8, Ruby1.9.1 Vulnerabilities (USN-2035-1)).

Upgrading to version 2.0.0 195 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (84279), Tenable (70684), SecurityFocus (BID 59881†), OSVDB (93414†) and Secunia (SA53432†). Entries connected to this vulnerability are available at VDB-11266, VDB-13039, VDB-65358 and VDB-65357. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
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: 70684
Nessus Name: Puppet Enterprise < 3.1.0 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 866056
OpenVAS Name: Fedora Update for ruby FEDORA-2013-12062
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Ruby 2.0.0 195

Timelineinfo

02/19/2013 🔍
05/14/2013 +84 days 🔍
05/14/2013 +0 days 🔍
05/14/2013 +0 days 🔍
05/14/2013 +0 days 🔍
05/15/2013 +1 days 🔍
05/16/2013 +1 days 🔍
05/30/2013 +14 days 🔍
10/29/2013 +152 days 🔍
11/02/2013 +4 days 🔍
05/11/2021 +2747 days 🔍

Sourcesinfo

Advisory: ruby-lang.org
Researcher: Vit Ondruch
Status: Not defined
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-2065 (🔍)
GCVE (CVE): GCVE-0-2013-2065
GCVE (VulDB): GCVE-100-8751

OVAL: 🔍

X-Force: 84279
SecurityFocus: 59881 - Ruby CVE-2013-2065 Multiple Security Bypass Vulnerabilities
Secunia: 53432 - Ruby DL and Fiddle Tainted Object Handling Vulnerability, Less Critical
OSVDB: 93414
Vulnerability Center: 39775 - Ruby 1.9 and 2.0 Multiple Security Bypass Vulnerabilities Related to \x27DL\x27 and \x27Fiddle\x27 Modules, Medium

See also: 🔍

Entryinfo

Created: 05/16/2013 16:46
Updated: 05/11/2021 14:41
Changes: 05/16/2013 16:46 (81), 05/01/2017 11:20 (4), 05/11/2021 14:41 (3)
Complete: 🔍
Committer:
Cache ID: 216:BBD:103

Be aware that VulDB is the high quality source for vulnerability data.

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