Linux Kernel 3.13/3.14 Seed Generator net.h net_get_random_once TCP Sequence improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability was found in Linux Kernel 3.13/3.14 (Operating System). It has been declared as critical. Affected by this vulnerability is the function net_get_random_once of the file net.h of the component Seed Generator. The manipulation with an unknown input leads to a improper authentication vulnerability (TCP Sequence). The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect integrity.

The issue has been introduced in 01/19/2014. The weakness was presented 05/11/2014 as confirmed git commit (GIT Repository). It is possible to read the advisory at git.kernel.org. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 112 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 3.15 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be patching the affected component. A possible mitigation has been published immediately after the disclosure of the vulnerability.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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

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

Exploitinginfo

Name: TCP Sequence
Class: Improper authentication / TCP Sequence
CWE: CWE-287
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Upgrade: Kernel 3.15
Patch: git.kernel.org

Timelineinfo

01/19/2014 🔍
05/11/2014 +112 days 🔍
05/11/2014 +0 days 🔍
10/02/2014 +144 days 🔍
10/06/2014 +4 days 🔍
04/14/2019 +1651 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed
SecurityTracker: 1030959

Entryinfo

Created: 10/06/2014 09:56
Updated: 04/14/2019 14:07
Changes: 10/06/2014 09:56 (49), 04/14/2019 14:07 (4)
Complete: 🔍

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