F5 BIG-IP/Enterprise Manager sshd access control

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in F5 BIG-IP and Enterprise Manager. It has been classified as problematic. Impacted is an unknown function of the component sshd. The manipulation leads to access control. This vulnerability is documented as CVE-2017-6128. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in F5 BIG-IP and Enterprise Manager (Firewall Software). This issue affects an unknown code block of the component sshd. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is availability. The summary by CVE is:

An attacker may be able to cause a denial-of-service (DoS) attack against the sshd component in F5 BIG-IP, Enterprise Manager, BIG-IQ, and iWorkflow.

The bug was discovered 04/24/2017. The weakness was released 04/21/2017 as K92140924 (Website). The advisory is shared at support.f5.com. The identification of this vulnerability is CVE-2017-6128 since 02/21/2017. 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 T1068 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 99546 (F5 Networks BIG-IP : F5 management sshd vulnerability (K92140924)), 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 370465 (F5 BIG-IP ASM Management SSHD Denial of Service Vulnerability (K92140924)).

Upgrading to version 11.5.4 HF3, 11.6.1 HF2, 12.0.0 - 12.1.2 or 13.0.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (99546) and SecurityTracker (ID 1038363†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Website

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
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: 99546
Nessus Name: F5 Networks BIG-IP : F5 management sshd vulnerability (K92140924)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800325
OpenVAS Name: F5 BIG-IP - TMM vulnerability CVE-2017-6128
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: BIG-IP/Enterprise Manager 11.5.4 HF3/11.6.1 HF2/12.0.0 - 12.1.2/13.0.0

Timelineinfo

02/21/2017 🔍
04/21/2017 +59 days 🔍
04/21/2017 +0 days 🔍
04/21/2017 +0 days 🔍
04/24/2017 +3 days 🔍
04/26/2017 +2 days 🔍
04/29/2017 +3 days 🔍
05/01/2017 +2 days 🔍
09/22/2020 +1240 days 🔍

Sourcesinfo

Vendor: f5.com

Advisory: K92140924
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-6128 (🔍)
GCVE (CVE): GCVE-0-2017-6128
GCVE (VulDB): GCVE-100-100721
OSVDB: - CVE-2017-6128 - F5 - Big-Ip Access Policy Manager - Medium
SecurityTracker: 1038363

Entryinfo

Created: 04/29/2017 11:30
Updated: 09/22/2020 11:45
Changes: 04/29/2017 11:30 (75), 09/22/2020 11:45 (4)
Complete: 🔍
Cache ID: 216::103

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

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