Brocade Fabric OS up to 7.4.2c/8.0.2e/8.1.2e/8.2.0 Web Management Interface session fixiation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

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 rated as critical. The impacted element is an unknown function of the component Web Management Interface. This manipulation causes session fixiation. This vulnerability is registered as CVE-2018-6434. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Brocade Fabric OS up to 7.4.2c/8.0.2e/8.1.2e/8.2.0. Affected by this vulnerability is an unknown function of the component Web Management Interface. The manipulation with an unknown input leads to a session fixiation vulnerability. The CWE definition for the vulnerability is CWE-384. Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in the web management interface of Brocade Fabric OS versions before 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d could allow attackers to intercept or manipulate a user's session ID.

The bug was discovered 10/29/2018. The weakness was published 11/08/2018 (Website). It is possible to read the advisory at broadcom.com. This vulnerability is known as CVE-2018-6434 since 01/31/2018. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

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.

Similar entries are available at VDB-126599, VDB-126598, VDB-126597 and VDB-126596. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
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: Session fixiation
CWE: CWE-384
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-2018-6434 (🔍)
GCVE (CVE): GCVE-0-2018-6434
GCVE (VulDB): GCVE-100-126595
See also: 🔍

Entryinfo

Created: 11/09/2018 08:01
Updated: 04/11/2020 09:34
Changes: 11/09/2018 08:01 (59), 04/11/2020 09:34 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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