F5 BIG-IP up to 13.1.0.5 Virtual Server Request input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability was found in F5 BIG-IP up to 13.1.0.5 and classified as problematic. This impacts an unknown function of the component Virtual Server. The manipulation as part of Request results in input validation. This vulnerability is cataloged as CVE-2018-5514. The attack may be launched remotely. There is no exploit available. Applying restrictive firewalling is recommended.

Detailsinfo

A vulnerability classified as problematic has been found in F5 BIG-IP up to 13.1.0.5 (Firewall Software). Affected is an unknown code of the component Virtual Server. The manipulation as part of a Request leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:

On F5 BIG-IP 13.1.0-13.1.0.5, maliciously crafted HTTP/2 request frames can lead to denial of service. There is data plane exposure for virtual servers when the HTTP2 profile is enabled. There is no control plane exposure to this issue.

The bug was discovered 05/02/2018. The weakness was shared 05/02/2018 (Website). The advisory is shared for download at support.f5.com. This vulnerability is traded as CVE-2018-5514 since 01/12/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/08/2023).

The vulnerability scanner Nessus provides a plugin with the ID 118664 (F5 Networks BIG-IP : TMM with HTTP/2 vulnerability (K45320419)), 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 370961 (F5 BIG-IP ASM TMM Multiple Disruption of Service Vulnerabilities (K25573437, K45320419, K51754851)).

It is possible to mitigate the weakness by firewalling . 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 (118664) and SecurityFocus (BID 104097†). The entries VDB-117323 and VDB-117327 are related to this item. Once again VulDB remains the best 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: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
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: 118664
Nessus Name: F5 Networks BIG-IP : TMM with HTTP/2 vulnerability (K45320419)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/12/2018 🔍
04/30/2018 +108 days 🔍
05/01/2018 +1 days 🔍
05/02/2018 +0 days 🔍
05/02/2018 +0 days 🔍
05/02/2018 +0 days 🔍
05/03/2018 +1 days 🔍
11/02/2018 +183 days 🔍
03/08/2023 +1587 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K45320419
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-5514 (🔍)
GCVE (CVE): GCVE-0-2018-5514
GCVE (VulDB): GCVE-100-117324
SecurityFocus: 104097 - F5 BIG-IP CVE-2018-5514 Remote Denial of Service Vulnerability
SecurityTracker: 1040804

See also: 🔍

Entryinfo

Created: 05/03/2018 10:35
Updated: 03/08/2023 14:55
Changes: 05/03/2018 10:35 (66), 02/02/2020 09:25 (9), 03/08/2023 14:55 (5)
Complete: 🔍
Cache ID: 216::103

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