Weakness · Medium
CWE-354: Improper Validation of Integrity Check Value
What it is
The product does not validate or incorrectly validates the integrity check values or "checksums" of a message. This may prevent it from detecting if the data has been modified or corrupted in transmission.
- Severity (our rating)
- Medium
- Likelihood of exploit
- Medium
- Introduced during
- Architecture and Design, Implementation
- Exploited in the wild
- No CVE in CISA's catalog
In more detail
Improper validation of checksums before use results in an unnecessary risk that can easily be mitigated. The protocol specification describes the algorithm used for calculating the checksum. It is then a simple matter of implementing the calculation and verifying that the calculated checksum and the received checksum match. Improper verification of the calculated checksum and the received checksum can lead to far greater consequences.
What an attacker can do
- Modify Application Data (Integrity, Other)
- Other (Integrity, Other, Non-Repudiation)
- Hide Activities (Non-Repudiation, Other)
How to prevent it
Implementation
- Ensure that the checksums present in messages are properly checked in accordance with the protocol specification before they are parsed and used.
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Start freeSource: MITRE Common Weakness Enumeration, CWE version 4.19.1. CWE is a trademark of The MITRE Corporation.