CVE-2021-33580
High
Description
User controlled `request.getHeader("Referer")`, `request.getRequestURL()` and `request.getQueryString()` are used to build and run a regex expression. The attacker doesn't have to use a browser and may send a specially crafted Referer header programmatically. Since the attacker controls the string and the regex pattern he may cause a ReDoS by regex catastrophic backtracking on the server side. This problem has been fixed in Roller 6.0.2.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Apache Roller
PublishedAug 18, 2021
First seenAug 18, 2021
Weakness typeCWE-400Uncontrolled resource consumption
How to fix
Update
- apache roller6.0.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apache roller | v < 6.0.2 | 6.0.2 |
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