F5 BIG-IP up to 11.4.0 Traffic Management Microkernel tm.minpathmtu data processing

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in F5 BIG-IP up to 11.4.0. This vulnerability affects unknown code of the component Traffic Management Microkernel. This manipulation of the argument tm.minpathmtu causes data processing. This vulnerability appears as CVE-2015-8240. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in F5 BIG-IP up to 11.4.0 (Firewall Software). Affected by this vulnerability is some unknown functionality of the component Traffic Management Microkernel. The manipulation of the argument tm.minpathmtu with an unknown input leads to a data processing vulnerability. The CWE definition for the vulnerability is CWE-19. As an impact it is known to affect availability. The summary by CVE is:

The Traffic Management Microkernel (TMM) in F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, GTM, Link Controller, and BIG-IP PEM before 11.4.1 HF10, 11.5.x before 11.5.4, and 11.6.x before 11.6.0 HF6 and BIG-IP PSM before 11.4.1 HF10 does not properly handle TCP options, which allows remote attackers to cause a denial of service via unspecified vectors, related to the tm.minpathmtu database variable.

The weakness was presented 04/11/2016 (Website). It is possible to read the advisory at securitytracker.com. This vulnerability is known as CVE-2015-8240 since 11/18/2015. 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 scanner Nessus provides a plugin with the ID 89973 (F5 Networks BIG-IP : F5 TCP vulnerability (K06223540)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family F5 Networks Local Security Checks and running in the context l.

Upgrading to version 11.4.1 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (89973) and Vulnerability Center (SBV-58043†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Data processing
CWE: CWE-19
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: 89973
Nessus Name: F5 Networks BIG-IP : F5 TCP vulnerability (K06223540)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800325
OpenVAS Name: F5 BIG-IP - SOL06223540 - F5 TCP vulnerability CVE-2015-8240
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: BIG-IP 11.4.1

Timelineinfo

11/18/2015 🔍
03/16/2016 +119 days 🔍
03/17/2016 +1 days 🔍
03/17/2016 +0 days 🔍
04/11/2016 +24 days 🔍
04/11/2016 +0 days 🔍
04/12/2016 +1 days 🔍
04/12/2016 +0 days 🔍
07/13/2022 +2283 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K06223540⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-8240 (🔍)
GCVE (CVE): GCVE-0-2015-8240
GCVE (VulDB): GCVE-100-82063
SecurityTracker: 1035367
Vulnerability Center: 58043 - F5 Multiple Big-IP Products Remote DoS Vulnerability due to Improper Handling of TCP Options, Medium

Entryinfo

Created: 04/12/2016 11:02
Updated: 07/13/2022 14:26
Changes: 04/12/2016 11:02 (67), 02/04/2019 10:33 (11), 07/13/2022 14:22 (3), 07/13/2022 14:26 (1)
Complete: 🔍
Cache ID: 216::103

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