Brocade Fabric OS up to 7.4.2c/8.0.2e/8.1.2e/8.2.0 Webtools Firmware Update command injection

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Brocade Fabric OS up to 7.4.2c/8.0.2e/8.1.2e/8.2.0. This affects an unknown part of the component Webtools Firmware Update. This manipulation causes command injection. This vulnerability is handled as CVE-2018-6442. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Brocade Fabric OS up to 7.4.2c/8.0.2e/8.1.2e/8.2.0. It has been declared as critical. Affected by this vulnerability is some unknown processing of the component Webtools Firmware Update. The manipulation with an unknown input leads to a command injection vulnerability. The CWE definition for the vulnerability is CWE-77. The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in the Brocade Webtools firmware update section of Brocade Fabric OS before 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d could allow remote authenticated attackers to execute arbitrary commands.

The bug was discovered 10/29/2018. The weakness was released 11/08/2018 (Website). The advisory is shared at broadcom.com. This vulnerability is known as CVE-2018-6442 since 01/31/2018. The attack can be launched remotely. Required for exploitation is a single authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 7.4.2d, 8.0.2f, 8.1.2f or 8.2.1 eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-126600, VDB-126599, VDB-126598 and VDB-126597. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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: Command injection
CWE: CWE-77 / CWE-74 / CWE-707
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Fabric OS 7.4.2d/8.0.2f/8.1.2f/8.2.1

Timelineinfo

01/31/2018 🔍
10/29/2018 +271 days 🔍
11/08/2018 +10 days 🔍
11/08/2018 +0 days 🔍
11/09/2018 +1 days 🔍
04/11/2020 +519 days 🔍

Sourcesinfo

Advisory: broadcom.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-6442 (🔍)
GCVE (CVE): GCVE-0-2018-6442
GCVE (VulDB): GCVE-100-126601
See also: 🔍

Entryinfo

Created: 11/09/2018 07:44
Updated: 04/11/2020 09:55
Changes: 11/09/2018 07:44 (59), 04/11/2020 09:55 (2)
Complete: 🔍
Cache ID: 216::103

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

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