CVE-2025-0714

Insecure storage of sensitive information in MobaXTerm <25.0.

Published Feb 17, 2025 CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed
Description
The vulnerability exists in the password storage of Mobateks MobaXterm in versions below 25.0. MobaXTerm uses an initialisation vector (IV) consisting only of zero bytes and a master key to encrypt each password individually. In the default configuration, on opening MobaXTerm, the user is prompted for their password. A derivative of the password is used as the master key. As both the master key and the IV are the same for each stored password, the AES CFB ciphertext depends only on the plaintext (the password). The static IV and master key make it easier to obtain sensitive information and to decrypt data when it is stored at rest.

Remediation

Vendor Solution

Update MobaXterm to v25.0 and reencrypt passwords that were encrypted with a vulnerable version of MobaXterm.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-4873 The vulnerability exists in the password storage of Mobateks MobaXterm in versions below 25.0. MobaXTerm uses an initialisation vector (IV) consisting only of zero bytes and a master key to encrypt each password individually. In the default configuration, on opening MobaXTerm, the user is prompted for their password. A derivative of the password is used as the master key. As both the master key and the IV are the same for each stored password, the AES CFB ciphertext depends only on the plaintext (the password). The static IV and master key make it easier to obtain sensitive information and to decrypt data when it is stored at rest.
References
History
Type Values Removed Values Added
Metrics epss

{'score': 0.00023}

epss

{'score': 0.00018}

Type Values Removed Values Added
Description The vulnerability existed in the password storage of Mobateks MobaXterm below 25.0. MobaXTerm uses an initialization vector (IV) that is generated by encrypting null bytes with a derivate of the users master key. As both the master key is static, and AES ECB produces the same output with the same input the IV for AES CFB is always the same.The static IV makes it easier to obtain sensitive information and decrypt data if the data is stored at rest. The vulnerability exists in the password storage of Mobateks MobaXterm in versions below 25.0. MobaXTerm uses an initialisation vector (IV) consisting only of zero bytes and a master key to encrypt each password individually. In the default configuration, on opening MobaXTerm, the user is prompted for their password. A derivative of the password is used as the master key. As both the master key and the IV are the same for each stored password, the AES CFB ciphertext depends only on the plaintext (the password). The static IV and master key make it easier to obtain sensitive information and to decrypt data when it is stored at rest.
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The vulnerability existed in the password storage of Mobateks MobaXterm below 25.0. MobaXTerm uses an initialization vector (IV) that is generated by encrypting null bytes with a derivate of the users master key. As both the master key is static, and AES ECB produces the same output with the same input the IV for AES CFB is always the same.The static IV makes it easier to obtain sensitive information and decrypt data if the data is stored at rest.
Title Insecure storage of sensitive information in MobaXTerm <25.0.
Weaknesses CWE-1204
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
cirosec
Published
Updated
Feb 19, 2025, 8:29 AM
Reserved
Jan 24, 2025, 12:55 PM
Status
Deferred
Published
Feb 17, 2025, 12:15 PM
Modified
Jun 17, 2026, 8:27 AM