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.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Router | Sap | 710-029 (including) | 710-029 (including) |
| Router | Sap | 720-411 (including) | 720-411 (including) |
| Router | Sap | 721-117 (including) | 721-117 (including) |