Dell Hybrid Client prior to version 1.8 contains a Regular Expression Denial of Service Vulnerability in the UI. An adversary with WMS group admin access could potentially exploit this vulnerability, leading to temporary denial-of-service.
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 |
|---|---|---|---|
| Hybrid_client | Dell | 1.5 (including) | 1.5 (including) |
| Hybrid_client | Dell | 1.6 (including) | 1.6 (including) |
| Hybrid_client | Dell | 1.6.1 (including) | 1.6.1 (including) |
| Hybrid_client | Dell | 1.6.2 (including) | 1.6.2 (including) |
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.