CWE-649
Reliance on Obfuscation or Encryption of Security-Relevant Inputs without Integrity Checking
BaseIncompleteLikelihood: High
Description
The product uses obfuscation or encryption of inputs that should not be mutable by an external actor, but the product does not use integrity checks to detect if those inputs have been modified.
When an application relies on obfuscation or incorrectly applied / weak encryption to protect client-controllable tokens or parameters, that may have an effect on the user state, system state, or some decision made on the server. Without protecting the tokens/parameters for integrity, the application is vulnerable to an attack where an adversary traverses the space of possible values of the said token/parameter in order to attempt to gain an advantage. The goal of the attacker is to find another admissible value that will somehow elevate their privileges in the system, disclose information or change the behavior of the system in some way beneficial to the attacker. If the application does not protect these critical tokens/parameters for integrity, it will not be able to determine that these values have been tampered with. Measures that are used to protect data for confidentiality should not be relied upon to provide the integrity service.
Hierarchy (View 1000)
Parents
Children
none
Related attack patterns (CAPEC)
CAPEC-463
CVEs mapped to this weakness (4)
| CVE | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|
| CVE-2024-10772 | Hig | 0.57 | 8.8 | 0.00 | Dec 6, 2024 | Since the firmware update is not validated, an attacker can install modified firmware on the device. This has a high impact on the availabilty, integrity and confidentiality up to the complete compromise of the device. | |
| CVE-2025-41351 | Med | 0.39 | — | 0.00 | Jan 28, 2026 | Vulnerability that allows a Padding Oracle Attack to be performed on the Funambol v30.0.0.20 cloud server. The thumbnail display URL allows an attacker to decrypt and encrypt the parameters used by the application to generate ‘self-signed’ access URLs. | |
| CVE-2024-36279 | Med | 0.34 | 5.3 | 0.00 | Jun 17, 2024 | Reliance on obfuscation or encryption of security-relevant inputs without integrity checking issue exists in "FreeFrom - the nostr client" App versions prior to 1.3.5 for Android and iOS. If this vulnerability is exploited, the content of direct messages (DMs) between users may be manipulated by a man-in-the-middle attack. | |
| CVE-2025-5323 | Low | 0.24 | 3.7 | 0.00 | May 29, 2025 | A vulnerability, which was classified as problematic, has been found in fossasia open-event-server 1.19.1. This issue affects the function send_email_change_user_email of the file /fossasia/open-event-server/blob/development/app/api/helpers/mail.py of the component Mail Verification Handler. The manipulation leads to reliance on obfuscation or encryption of security-relevant inputs without integrity checking. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way. |