F5 BIG-IP up to 11.5.5/11.6.1/12.1.2/13.0.0 SSL cryptographic issue

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

Summaryinfo

A vulnerability, which was classified as problematic, has been found in F5 BIG-IP up to 11.5.5/11.6.1/12.1.2/13.0.0. This affects an unknown function of the component SSL Handler. The manipulation leads to cryptographic issue. This vulnerability is documented as CVE-2018-5507. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in F5 BIG-IP up to 11.5.5/11.6.1/12.1.2/13.0.0 (Firewall Software). This issue affects an unknown functionality of the component SSL Handler. The manipulation with an unknown input leads to a cryptographic issue vulnerability. Using CWE to declare the problem leads to CWE-310. Impacted is availability. The summary by CVE is:

On F5 BIG-IP versions 13.0.0, 12.1.0-12.1.3.1, 11.6.1-11.6.2, or 11.5.1-11.5.5, vCMP guests running on VIPRION 2100, 4200 and 4300 series blades cannot correctly decrypt ciphertext from established SSL sessions with small MTU.

The bug was discovered 04/13/2018. The weakness was released 04/13/2018 (Website). The advisory is shared at support.f5.com. The identification of this vulnerability is CVE-2018-5507 since 01/12/2018. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 118679 (F5 Networks BIG-IP : vCMP Cavium Nitrox SSL hardware accelerator vulnerability (K52521791)), 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 370892 (F5 BIG-IP ASM Multiple Security Vulnerabilities (K55225440, K52521791)).

Upgrading 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 vulnerability database at Tenable (118679). Entry connected to this vulnerability is available at VDB-116167. Several companies clearly confirm that VulDB is the primary source for best 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: 5.1
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: Cryptographic issue
CWE: CWE-310
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: 118679
Nessus Name: F5 Networks BIG-IP : vCMP Cavium Nitrox SSL hardware accelerator vulnerability (K52521791)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/12/2018 🔍
04/12/2018 +90 days 🔍
04/13/2018 +0 days 🔍
04/13/2018 +0 days 🔍
04/13/2018 +0 days 🔍
04/16/2018 +3 days 🔍
11/02/2018 +200 days 🔍
02/28/2023 +1579 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K52521791
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-5507 (🔍)
GCVE (CVE): GCVE-0-2018-5507
GCVE (VulDB): GCVE-100-116201
See also: 🔍

Entryinfo

Created: 04/16/2018 09:37
Updated: 02/28/2023 08:45
Changes: 04/16/2018 09:37 (62), 01/25/2020 08:21 (8), 02/28/2023 08:45 (4)
Complete: 🔍
Cache ID: 216:4BD:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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