Description
The product’s comparison logic is performed over a series of steps rather than across the entire string in one operation. If there is a comparison logic failure on one of these steps, the operation may be vulnerable to a timing attack that can result in the interception of the process for nefarious purposes.
Modes of Introduction:
– Architecture and Design
Related Weaknesses
CWE-208
CWE-697
Consequences
Confidentiality, Authorization: Bypass Protection Mechanism
Potential Mitigations
Phase: Implementation
Description:
CVE References
- CVE-2014-0984
- The passwordCheck function in SAP Router 721 patch 117, 720 patch 411, 710 patch 029, and earlier terminates validation of a Route Permission Table entry password upon encountering the first incorrect character, which allows remote attackers to obtain passwords via a brute-force attack that relies on timing differences in responses to incorrect password guesses, aka a timing side-channel attack.
