Ruby 1.8.7 access control

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Ruby 1.8.7 and classified as critical. This issue affects some unknown processing. The manipulation results in access control. This vulnerability was named CVE-2012-4481. There is no available exploit.

Detailsinfo

A vulnerability was found in Ruby 1.8.7 (Programming Language Software). It has been classified as critical. Affected is an unknown code. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on integrity. CVE summarizes:

The safe-level feature in Ruby 1.8.7 allows context-dependent attackers to modify strings via the NameError#to_s method when operating on Ruby objects. NOTE: this issue is due to an incomplete fix for CVE-2011-1005.

The weakness was presented 05/02/2013 by Vit Ondruch with Red Hat as Bug 863484 as not defined bug report (Bugzilla). The advisory is shared for download at bugzilla.redhat.com. This vulnerability is traded as CVE-2012-4481 since 08/21/2012. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability scanner Nessus provides a plugin with the ID 68700 (Oracle Linux 5 : ruby (ELSA-2013-0129)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350573 (Amazon Linux Security Advisory for ruby: ALAS-2013-173).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (79106), Tenable (68700), SecurityFocus (BID 55813†) and Vulnerability Center (SBV-38196†). See VDB-4302 and VDB-7822 for similar entries. Once again VulDB remains the best 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: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 68700
Nessus Name: Oracle Linux 5 : ruby (ELSA-2013-0129)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881561
OpenVAS Name: CentOS Update for ruby CESA-2013:0129 centos5
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/21/2012 🔍
10/05/2012 +45 days 🔍
10/05/2012 +0 days 🔍
01/29/2013 +116 days 🔍
05/02/2013 +93 days 🔍
05/02/2013 +0 days 🔍
07/12/2013 +71 days 🔍
03/24/2015 +620 days 🔍
01/02/2022 +2476 days 🔍

Sourcesinfo

Advisory: Bug 863484
Researcher: Vit Ondruch
Organization: Red Hat
Status: Not defined
Confirmation: 🔍

CVE: CVE-2012-4481 (🔍)
GCVE (CVE): GCVE-0-2012-4481
GCVE (VulDB): GCVE-100-64068

OVAL: 🔍

X-Force: 79106
SecurityFocus: 55813 - Ruby '#to_s' Method Incomplete Fix Security Bypass Vulnerability
Vulnerability Center: 38196 - Ruby Allows Remote Attackers to Modify Strings via the Exception#to_s Method - CVE-2012-4481, Medium

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/02/2022 13:34
Changes: 03/24/2015 15:54 (68), 04/24/2017 09:59 (7), 01/02/2022 13:34 (3)
Complete: 🔍
Cache ID: 216:C27:103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!