SB2026100123 - Multiple vulnerabilities in VMware Tanzu velero

Description

This security bulletin contains information about 2 vulnerabilities.

1) Unintended Proxy or Intermediary (CVE-ID: N/A)

CWE-ID: CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')

CVSSv4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

The vulnerability allows a remote user to compromise the target system.

The vulnerability exists due to missing phase validation in the "backupSyncReconciler.Reconcile()" function. A remote administrator can insert malicious exec hooks into a synced backup manifest in object storage and execute arbitrary shell commands inside target pods.

2) Race condition (CVE-ID: N/A)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSSv4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to a race condition in pkg/repository/udmrepo/kopialib/repo_init.go. A remote attacker can exploit the race and cause one repository operation to adopt the bucket configuration and access credentials intended for a different repository/BSL.

Remediation

Install update from vendor's website.

References

• https://github.com/velero-io/velero/security/advisories/GHSA-8gv3-c356-fw76
• https://github.com/velero-io/velero/security/advisories/GHSA-vrfp-2x59-hcfm