F5 BIG-IP up to 12.1.3.1/13.0.0 TMM input validation

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6.3$0-$5k0.00

A vulnerability classified as problematic was found in F5 BIG-IP up to 12.1.3.1/13.0.0 (Firewall Software). This vulnerability affects an unknown part of the component TMM. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

On F5 BIG-IP versions 13.0.0 or 12.1.0 - 12.1.3.1, when a specifically configured virtual server receives traffic of an undisclosed nature, TMM will crash and take the configured failover action, potentially causing a denial of service. The configuration which exposes this issue is not common and in general does not work when enabled in previous versions of BIG-IP. Starting in 12.1.0, BIG-IP will crash if the configuration which exposes this issue is enabled and the virtual server receives non TCP traffic. With the fix of this issue, additional configuration validation logic has been added to prevent this configuration from being applied to a virtual server. There is only data plane exposure to this issue with a non-standard configuration. There is no control plane exposure.

The bug was discovered 03/22/2018. The weakness was disclosed 03/22/2018 (Website). The advisory is available at support.f5.com. This vulnerability was named CVE-2018-5509 since 01/12/2018. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 118671 (F5 Networks BIG-IP : TMOS vulnerability (K49440608)), 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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370840 (F5 BIG-IP ASM TMOS Denial of Service Vulnerability (K49440608)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (118671) and SecurityFocus (BID 103504†).

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
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CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 118671
Nessus Name: F5 Networks BIG-IP : TMOS vulnerability (K49440608)
Nessus File: 🔍
Nessus Risk: 🔍
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Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/12/2018 🔍
03/21/2018 +68 days 🔍
03/22/2018 +1 days 🔍
03/22/2018 +0 days 🔍
03/22/2018 +0 days 🔍
03/22/2018 +0 days 🔍
03/23/2018 +1 days 🔍
11/02/2018 +224 days 🔍
02/22/2023 +1573 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K49440608
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-5509 (🔍)
SecurityFocus: 103504 - Multiple F5 BIG-IP Products CVE-2018-5509 Remote Denial of Service Vulnerability
SecurityTracker: 1040562

Entryinfo

Created: 03/23/2018 10:05
Updated: 02/22/2023 16:30
Changes: 03/23/2018 10:05 (64), 01/16/2020 07:00 (10), 02/06/2021 06:14 (3), 02/22/2023 16:30 (3)
Complete: 🔍
Cache ID: 3:EF5:103

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