CVE-2019-19631
Last modified
CVE-2019-19631 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An issue was discovered in Big Switch Big Monitoring Fabric 6.2 through 6.2.4, 6.3 through 6.3.9, 7.0 through 7.0.3, and 7.1 through 7.1.3; Big Cloud Fabric 4.5 through 4.5.5, 4.7 through 4.7.7, 5.0 through 5.0.1, and 5.1 through 5.1.4; and Multi-Cloud Director through 1.1.0. A read-only user can access sensitive information via an API endpoint that reveals session cookies of authenticated administrators, leading to privilege escalation.. EPSS estimates a 1.73% chance of exploitation in the next 30 days.
Description
An issue was discovered in Big Switch Big Monitoring Fabric 6.2 through 6.2.4, 6.3 through 6.3.9, 7.0 through 7.0.3, and 7.1 through 7.1.3; Big Cloud Fabric 4.5 through 4.5.5, 4.7 through 4.7.7, 5.0 through 5.0.1, and 5.1 through 5.1.4; and Multi-Cloud Director through 1.1.0. A read-only user can access sensitive information via an API endpoint that reveals session cookies of authenticated administrators, leading to privilege escalation.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Bigswitch | Big Cloud Fabric | >= 4.5, < 4.5.5 |
| Bigswitch | Big Cloud Fabric | >= 4.7, < 4.7.7 |
| Bigswitch | Big Cloud Fabric | >= 5.0, < 5.0.1 |
| Bigswitch | Big Cloud Fabric | >= 5.1, < 5.1.4 |
| Bigswitch | Big Monitoring Fabric | >= 6.2, < 6.2.4 |
| Bigswitch | Big Monitoring Fabric | >= 6.3, < 6.3.9 |
| Bigswitch | Big Monitoring Fabric | >= 7.0, < 7.0.3 |
| Bigswitch | Big Monitoring Fabric | >= 7.1, < 7.1.4 |
| Bigswitch | Multi-Cloud Director | < 1.1.0 |
References
- https://know.bishopfox.com/advisoriesThird Party Advisory
- https://know.bishopfox.com/advisories/big-monitoring-fabricExploit, Third Party Advisory
- https://know.bishopfox.com/advisoriesThird Party Advisory
- https://know.bishopfox.com/advisories/big-monitoring-fabricExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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