CVE-2017-5661

Severity CVSS v4.0:

Pending analysis

Type:

CWE-611 Improper Restriction of XML External Entity Reference ('XXE')

Publication date:

18/04/2017

Last modified:

20/04/2025

Description

In Apache FOP before 2.2, files lying on the filesystem of the server which uses FOP can be revealed to arbitrary users who send maliciously formed SVG files. The file types that can be shown depend on the user context in which the exploitable application is running. If the user is root a full compromise of the server - including confidential or sensitive files - would be possible. XXE can also be used to attack the availability of the server via denial of service as the references within a xml document can trivially trigger an amplification attack.

Impact

Vector 3.x

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.30 HIGH
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): High

Base Score 3.x

7.30

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:M/Au:S/C:C/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.90 HIGH
Vector: AV:N/AC:M/Au:S/C:C/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): Single
Confidentiality (C): Complete
Integrity (I): None
Availability (A): Complete