PT-2026-99443 · Contrast+1 · Contrast+1
CVSS v4.0
6.9
Medium
| Vector | AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
Name of the Vulnerable Software and Affected Versions
Contrast versions prior to 1.12.1
Description
The secure persistent volume feature is susceptible to an attack where a malicious host provides a crafted LUKS2 volume to a pod VM. This occurs because LUKS2 volume metadata is not authenticated and
cryptsetup versions prior to 2.8.1 accept a header specifying the null keyslot encryption algorithm (cipher null-ecb) without error. The Contrast Initializer assumes a device is protected if the cryptsetup open function succeeds with the secret seed. Consequently, the guest may open the attacker-supplied volume and write secret data in plaintext or using a volume key known to the attacker, enabling the host to read confidential data.Recommendations
Update to version 1.12.1 or later.
Exploit
Fix
Improper Verification of Cryptographic Signature
Files Accessible to External Parties
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Related Identifiers
Affected Products
Contrast
Cryptsetup