BBR could run arbitrary scripts on deployment VMs
CVE-2019-3786

7.7HIGH

Key Information:

Vendor

Cloud Foundry

Status
Bosh Backup And Restore
Vendor
CVE Published:
24 April 2019

What is CVE-2019-3786?

Cloud Foundry BOSH Backup and Restore CLI, all versions prior to 1.5.0, does not check the authenticity of backup scripts in BOSH. A remote authenticated malicious user can modify the metadata file of a Bosh Backup and Restore job to request extra backup files from different jobs upon restore. The exploited hooks in this metadata script were only maintained in the cfcr-etcd-release, so clusters deployed with the BBR job for etcd in this release are vulnerable.

Affected Version(s)

BOSH Backup and Restore All

References

https://www.cloudfoundry.org/blog/cve-2019-3786
x_refsource_CONFIRM

CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

CVSS V3.0

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.