Versions of the package angular from 1.0.0 are vulnerable to Regular Expression Denial of Service (ReDoS) via the $resource service due to the usage of an insecure regular expression. Exploiting this vulnerability is possible by a large carefully-crafted input, which can result in catastrophic backtracking.
The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Angular | Angularjs | 1.0.0 (including) | 1.8.3 (including) |
| Angular.js | Ubuntu | bionic | * |
| Angular.js | Ubuntu | kinetic | * |
| Angular.js | Ubuntu | lunar | * |
| Angular.js | Ubuntu | mantic | * |
| Angular.js | Ubuntu | trusty | * |
| Angular.js | Ubuntu | xenial | * |
Attackers can create crafted inputs that
intentionally cause the regular expression to use
excessive backtracking in a way that causes the CPU
consumption to spike.