CVE-2021-33580: User controlled `request.getHeader("Referer")`, `request.getRequestURL()` and `request.getQueryString()` are used to build and run a regex expression. The…

PriorityP344high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

3.30%

87.1th percentile

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
apache	roller	< 6.0.2	6.0.2
apache_software_foundation	apache_roller	>= Apache Roller < 6.0.2	6.0.2

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P

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