CVE-2019-19631

HIGH

8.8

CVSS Score

Published: January 24, 2020 at 03:15 PM UTC

Updated: June 17, 2026 at 02:26 AM UTC

3 products affected across 1 vendorBig Monitoring FabricMulti Cloud DirectorBig Cloud Fabric

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Severity

HIGH8.8

Exploit prediction

EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Big Cloud Fabric · Bigswitch

95%

4.5 ≤ v < 4.5.54.7 ≤ v < 4.7.75.0 ≤ v < 5.0.15.1 ≤ v < 5.1.4

Affected range stops below 4.5.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.7.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.0.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 5.1.4, so it looks safe — our inference, not a vendor statement

Big Monitoring Fabric · Bigswitch

95%

6.2 ≤ v < 6.2.46.3 ≤ v < 6.3.97.0 ≤ v < 7.0.37.1 ≤ v < 7.1.4

Affected range stops below 6.2.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.3.9, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.0.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.1.4, so it looks safe — our inference, not a vendor statement

Multi Cloud Director · Bigswitch

95%

v < 1.1.0

Affected range stops below 1.1.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

x_refsource_MISCThird Party Advisory

Source: [email protected]

https://know.bishopfox.com/advisories

x_refsource_MISCExploitThird Party Advisory

Source: [email protected]

https://know.bishopfox.com/advisories/big-monitoring-fabric

CVSS

8.8HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-200

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