FreeBSD 6.3/6.4/7.0/7.1 Random Number Generator cryptographic issue

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in FreeBSD 6.3/6.4/7.0/7.1. Impacted is an unknown function of the component Random Number Generator. The manipulation leads to cryptographic issue. This vulnerability is referenced as CVE-2008-5162. No exploit is available.

Detailsinfo

A vulnerability was found in FreeBSD 6.3/6.4/7.0/7.1 (Operating System). It has been rated as critical. This issue affects some unknown functionality of the component Random Number Generator. The manipulation with an unknown input leads to a cryptographic issue vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The arc4random function in the kernel in FreeBSD 6.3 through 7.1 does not have a proper entropy source for a short time period immediately after boot, which makes it easier for attackers to predict the function s return values and conduct certain attacks against the GEOM framework and various network protocols, related to the Yarrow random number generator.

The weakness was published 11/24/2008 by Maxim Dounin (Website). It is possible to read the advisory at security.freebsd.org. The identification of this vulnerability is CVE-2008-5162 since 11/19/2008. Attacking locally is a requirement. No form of authentication is needed for a successful exploitation. 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.

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 (46825), SecurityFocus (BID 32447†), OSVDB (50137†), Secunia (SA32871†) and SecurityTracker (ID 1021276†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.4
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.4
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Cryptographic issue
CWE: CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 61921
OpenVAS Name: FreeBSD Security Advisory (FreeBSD-SA-08:11.arc4random.asc)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/19/2008 🔍
11/24/2008 +5 days 🔍
11/24/2008 +0 days 🔍
11/24/2008 +0 days 🔍
11/24/2008 +0 days 🔍
11/25/2008 +0 days 🔍
11/25/2008 +0 days 🔍
11/26/2008 +0 days 🔍
06/06/2013 +1653 days 🔍
03/17/2015 +649 days 🔍
05/01/2017 +776 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: security.freebsd.org
Researcher: Maxim Dounin
Status: Confirmed

CVE: CVE-2008-5162 (🔍)
GCVE (CVE): GCVE-0-2008-5162
GCVE (VulDB): GCVE-100-45215
X-Force: 46825
SecurityFocus: 32447 - FreeBSD 'arc4random (9)' Pseudo-Random Number Generator Insufficient Entropy Weakness
Secunia: 32871 - FreeBSD "arc4random()" Insufficient Entropy Sources Security Issue, Less Critical
OSVDB: 50137 - FreeBSD arc4random() Function Entropy Source Weakness
SecurityTracker: 1021276 - FreeBSD arc4random(9) Generates Predictable Sequences
Vulnerability Center: 39874 - FreeBSD 6.3-7.1 arc4random() in Kernel Allows Local Security Compromise by Brute Force Attack, Medium

Entryinfo

Created: 03/17/2015 16:11
Updated: 05/01/2017 11:44
Changes: 03/17/2015 16:11 (63), 05/01/2017 11:44 (11)
Complete: 🔍
Cache ID: 216::103

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