PT-2019-15891 · Big Switch · Big Monitoring Fabric+2

Chris Davis + 3 · Published 2019-12-31 · Updated 2020-08-24 · CVE-2019-19631

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Big Switch Big Monitoring Fabric versions 6.2 through 6.2.4 Big Switch Big Monitoring Fabric versions 6.3 through 6.3.9 Big Switch Big Monitoring Fabric versions 7.0 through 7.0.3 Big Switch Big Monitoring Fabric versions 7.1 through 7.1.3 Big Cloud Fabric versions 4.5 through 4.5.5 Big Cloud Fabric versions 4.7 through 4.7.7 Big Cloud Fabric versions 5.0 through 5.0.1 Big Cloud Fabric versions 5.1 through 5.1.4 Multi-Cloud Director versions through 1.1.0

Description A read-only user can access sensitive information via an API endpoint that reveals session cookies of authenticated administrators, leading to privilege escalation.

Recommendations For Big Switch Big Monitoring Fabric versions 6.2 through 6.2.4, update to a version outside of this range to mitigate the risk. For Big Switch Big Monitoring Fabric versions 6.3 through 6.3.9, update to a version outside of this range to mitigate the risk. For Big Switch Big Monitoring Fabric versions 7.0 through 7.0.3, update to a version outside of this range to mitigate the risk. For Big Switch Big Monitoring Fabric versions 7.1 through 7.1.3, update to a version outside of this range to mitigate the risk. For Big Cloud Fabric versions 4.5 through 4.5.5, update to a version outside of this range to mitigate the risk. For Big Cloud Fabric versions 4.7 through 4.7.7, update to a version outside of this range to mitigate the risk. For Big Cloud Fabric versions 5.0 through 5.0.1, update to a version outside of this range to mitigate the risk. For Big Cloud Fabric versions 5.1 through 5.1.4, update to a version outside of this range to mitigate the risk. For Multi-Cloud Director versions through 1.1.0, update to a version outside of this range to mitigate the risk. As a temporary workaround, consider restricting access to the API endpoint that reveals session cookies of authenticated administrators until a patch is available.

Exploit

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2019-19631

Affected Products

Big Cloud Fabric

Big Monitoring Fabric

Multi-Cloud Director

References · 6

• 🔥 https://know.bishopfox.com/advisories/big-monitoring-fabric · Exploit
• https://osv.dev/vulnerability/CVE-2019-19631 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-19631 · Security Note
• https://t.me/rnetsec/11210 · Telegram Post
• https://t.me/defcon_news/34315 · Telegram Post
• https://know.bishopfox.com/advisories · Note