OpenMage magento-lts before 20.19.0 Race Condition in Coupon Usage Limits
Summary
OpenMage magento-lts before 20.19.0 and 21.0.0-beta1 before 21.0.0-beta3 contains a race condition in shopping cart price rule usage limits, because Mage_SalesRule_Model_Validator checks coupon limits without locking and the usage counters are later incremented non-atomically. Unauthenticated attack...
Affected packages
| Package | Affected → Fixed | |
|---|---|---|
| OpenMagemagento-lts |
≥ 21.0.0-beta1, < 21.0.0-beta3→ 21.0.0-beta3 |
21.0.0-beta3 |
Original description The description as published by the source.
OpenMage magento-lts before 20.19.0 and 21.0.0-beta1 before 21.0.0-beta3 contains a race condition in shopping cart price rule usage limits, because Mage_SalesRule_Model_Validator checks coupon limits without locking and the usage counters are later incremented non-atomically. Unauthenticated attackers, including guest shoppers, can submit concurrent checkouts to redeem a limited coupon more times than its cap allows.
Source: CVE.org (CVE Program・cvelistV5) NVD