Ruby up to 1.8.7-p21 cryptographic issue

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Ruby up to 1.8.7-p21. Impacted is an unknown function. This manipulation causes cryptographic issue. This vulnerability is registered as CVE-2011-2686. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Ruby up to 1.8.7-p21 (Programming Language Software). Affected by this vulnerability is an unknown code. The manipulation with an unknown input leads to a cryptographic issue vulnerability. The CWE definition for the vulnerability is CWE-310. As an impact it is known to affect confidentiality. The summary by CVE is:

Ruby before 1.8.7-p352 does not reset the random seed upon forking, which makes it easier for context-dependent attackers to predict the values of random numbers by leveraging knowledge of the number sequence obtained in a different child process, a related issue to CVE-2003-0900. NOTE: this issue exists because of a regression during Ruby 1.8.6 development.

The weakness was published 08/05/2011 by arma as Bug 722415 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2011-2686. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 76015 (openSUSE Security Update : ruby (openSUSE-SU-2012:0228-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks.

Upgrading to version 1.8.7 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (69032), Tenable (76015), SecurityFocus (BID 49015†) and Vulnerability Center (SBV-32587†). Similar entry is available at VDB-58196. Statistical analysis made it clear that VulDB provides the best quality 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: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Cryptographic issue
CWE: CWE-310
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: 76015
Nessus Name: openSUSE Security Update : ruby (openSUSE-SU-2012:0228-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881191
OpenVAS Name: CentOS Update for irb CESA-2012:0070 centos4
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Ruby 1.8.7

Timelineinfo

07/11/2011 🔍
08/04/2011 +24 days 🔍
08/05/2011 +1 days 🔍
08/05/2011 +0 days 🔍
08/05/2011 +0 days 🔍
08/07/2011 +2 days 🔍
06/13/2014 +1041 days 🔍
03/23/2015 +283 days 🔍
11/17/2021 +2431 days 🔍

Sourcesinfo

Advisory: Bug 722415
Researcher: arma
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-2686 (🔍)
GCVE (CVE): GCVE-0-2011-2686
GCVE (VulDB): GCVE-100-58195

OVAL: 🔍

X-Force: 69032
SecurityFocus: 49015 - Ruby Random Number Generation Local Denial Of Service Vulnerability
Vulnerability Center: 32587 - Ruby before 1.8.7-p352 Local Denial of Service due to Predictable Random Values, Low

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/17/2021 09:43
Changes: 03/23/2015 16:50 (62), 03/29/2017 11:00 (10), 11/17/2021 09:39 (4), 11/17/2021 09:43 (1)
Complete: 🔍
Cache ID: 216:948:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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