Brocade Fabric OS up to 7.4.2c/8.0.2e/8.1.2e/8.2.0 Command Line Interface access control
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.5 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, was found in Brocade Fabric OS up to 7.4.2c/8.0.2e/8.1.2e/8.2.0. This affects some unknown functionality of the component Command Line Interface. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:
A Vulnerability in the firmwaredownload command of Brocade Fabric OS command line interface (CLI) versions before 8.2.1, 8.1.2f, 8.0.2f, 7.4.2d could allow a local attacker to escape the restricted shell and, gain root access.
The bug was discovered 10/29/2018. The weakness was disclosed 11/08/2018 (Website). The advisory is shared at broadcom.com. This vulnerability is uniquely identified as CVE-2018-6436 since 01/31/2018. An attack has to be approached locally. A authentication is required for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 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.
The entry 127432 is pretty similar.
Product
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.8VulDB Meta Temp Score: 7.6
VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Access controlCWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Fabric OS 7.4.2d/8.0.2f/8.1.2f/8.2.1
Timeline
01/31/2018 🔍10/29/2018 🔍
11/08/2018 🔍
11/08/2018 🔍
11/09/2018 🔍
04/11/2020 🔍
Sources
Advisory: broadcom.comStatus: Not defined
Confirmation: 🔍
CVE: CVE-2018-6436 (🔍)
See also: 🔍
Entry
Created: 11/09/2018 07:44Updated: 04/11/2020 09:44
Changes: 11/09/2018 07:44 (60), 04/11/2020 09:44 (2)
Complete: 🔍
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