CVE-2018-11758 - Improper Restriction of XML External Entity Reference

Severity

57%

Complexity

86%

Confidentiality

81%

This affects Apache Cayenne 4.1.M1, 3.2.M1, 4.0.M2 to 4.0.M5, 4.0.B1, 4.0.B2, 4.0.RC1, 3.1, 3.1.1, 3.1.2. CayenneModeler is a desktop GUI tool shipped with Apache Cayenne and intended for editing Cayenne ORM models stored as XML files. If an attacker tricks a user of CayenneModeler into opening a malicious XML file, the attacker will be able to instruct the XML parser built into CayenneModeler to transfer files from a local machine to a remote machine controlled by the attacker. The cause of the issue is XML parser processing XML External Entity (XXE) declarations included in XML. The vulnerability is addressed in Cayenne by disabling XXE processing in all operations that require XML parsing.

This affects Apache Cayenne 4.1.M1, 3.2.M1, 4.0.M2 to 4.0.M5, 4.0.B1, 4.0.B2, 4.0.RC1, 3.1, 3.1.1, 3.1.2. CayenneModeler is a desktop GUI tool shipped with Apache Cayenne and intended for editing Cayenne ORM models stored as XML files. If an attacker tricks a user of CayenneModeler into opening a malicious XML file, the attacker will be able to instruct the XML parser built into CayenneModeler to transfer files from a local machine to a remote machine controlled by the attacker. The cause of the issue is XML parser processing XML External Entity (XXE) declarations included in XML. The vulnerability is addressed in Cayenne by disabling XXE processing in all operations that require XML parsing.

CVSS 3.0 Base Score 8.1. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N).

CVSS 2.0 Base Score 5.8. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:N).

Overview

Type

Apache Software Foundation Cayenne

First reported 6 years ago

2018-08-22 20:29:00

Last updated 6 years ago

2018-11-02 14:34:00

Affected Software

Apache Software Foundation Cayenne 3.1.1

3.1.1

Apache Software Foundation Cayenne 3.1.2

3.1.2

Apache Software Foundation Cayenne 3.2 Milestone 1

3.2

Apache Software Foundation Cayenne 4.0 Beta 1

4.0

Apache Software Foundation Cayenne 4.0 Beta 2

4.0

Apache Software Foundation Cayenne 4.0 Milestone 2

4.0

Apache Software Foundation Cayenne 4.0 Milestone 3

4.0

Apache Software Foundation Cayenne 4.0 Milestone 4

4.0

Apache Software Foundation Cayenne 4.0 Milestone 5

4.0

Apache Software Foundation Cayenne 4.0 Release Candidate 1

4.0

Apache Software Foundation Cayenne 4.1 Milestone 1

4.1

Stay updated

ExploitPedia is constantly evolving. Sign up to receive a notification when we release additional functionality.

Get in touch

If you'd like to report a bug or have any suggestions for improvements then please do get in touch with us using this form. We will get back to you as soon as we can.