What is the CVSS score of CVE-2017-5661?

CVE-2017-5661 has a CVSS 3.0 base score of 7.3 (High). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H. EPSS exploitation probability: 2.4%.

Is there a patch available for CVE-2017-5661?

Yes, a patch is available for CVE-2017-5661. Update the affected software to the latest version immediately.

Formatting Objects Processor CVE-2017-5661

HIGH

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

2017-04-18 security@apache.org

Denial Of Service XXE Apache Formatting Objects Processor

7.3

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

7.3 HIGH

AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Apr 18, 2017 - 14:59 cve.org

HIGH 7.3

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

102 maven packages depend on org.apache.xmlgraphics:fop (15 direct, 87 indirect)

Ecosystem-wide dependent count for version 2.2.

DescriptionCVE.org

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.

AnalysisAI

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. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, low attack complexity. This XML External Entity (XXE) vulnerability could allow attackers to read arbitrary files or perform SSRF through XML processing.

Technical ContextAI

This vulnerability is classified as XML External Entity (XXE) (CWE-611), which allows attackers to read arbitrary files or perform SSRF through XML processing. 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. Affected products include: Apache Formatting Objects Processor. Version information: before 2.2.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Disable external entity processing in XML parsers, use JSON instead of XML where possible.