CVE-2015-0264: Apache Camel allows remote actor to read arbitrary files via external entity in invalid XML string or GenericFile object
Summary
CVE-2015-0264: Multiple XML external entity (XXE) vulnerabilities in builder/xml/XPathBuilder.java in Apache Camel before 2.13.4 and 2.14.x before 2.14.2 allow remote attackers to read arbitrary files via an external entity in an inval... Affects org.apache.camel:camel-core across 2 version ranges.
< 2.13.4
>= 2.14.0, < 2.14.2
Fixed in 2.13.4 or 2.14.2, depending on the release line you run. How to fix ↓
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Background
Apache Camel is an open-source integration framework that provides a rule-based routing and mediation engine. It allows developers to build integration solutions using various protocols and technologies. The 'camel-core' package is a fundamental component of Apache Camel, providing core functionality and features for message routing and transformation. This package is vulnerable to multiple XML external entity (XXE) attacks.
Vulnerability Detail
The vulnerability in Apache Camel arises from the improper handling of XML external entities. Specifically, the 'XPathBuilder' class in the 'builder/xml/XPathBuilder.java' file is affected. Remote attackers can exploit this vulnerability by injecting malicious external entities into an invalid XML string or a 'GenericFile' object used in an XPath query. By leveraging this vulnerability, attackers can read arbitrary files on the system, potentially exposing sensitive information.
How To Fix
Fixed versions by release line
The minimum fixed version depends on the release line you run.
-
< 2.13.42.13.4 -
>= 2.14.0, < 2.14.22.14.2
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Workaround
As a temporary workaround, it is advised to sanitize user input and validate XML data before passing it to the affected XPathBuilder class. Additionally, restricting access to the XPathBuilder functionality or implementing proper access controls can help mitigate the risk associated with this vulnerability.
Conclusion
The vulnerability in Apache Camel allows remote actors to read arbitrary files on the system by exploiting XML external entity (XXE) vulnerabilities. It is crucial to upgrade to the fixed versions of Apache Camel to mitigate this risk. For further assistance and support in vulnerability remediation, please contact DevNack.com.
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FAQ
Apache Camel is an open-source integration framework that provides a rule-based routing and mediation engine. It enables developers to build integration solutions using various protocols and technologies.
The 'camel-core' package is a fundamental component of Apache Camel, providing core functionality and features for message routing and transformation.
An XML external entity (XXE) vulnerability is a type of attack that exploits the improper handling of external entities in XML parsing. By injecting malicious entities, an attacker can read arbitrary files, potentially exposing sensitive information.
This vulnerability can be exploited by injecting malicious external entities into an invalid XML string or a 'GenericFile' object used in an XPath query. By doing so, an attacker can read arbitrary files on the system.
To fix this vulnerability, it is recommended to upgrade to a fixed version of Apache Camel. For versions prior to 2.13.4, upgrade to 2.13.4 or later. For versions between 2.14.0 and 2.14.2, upgrade to 2.14.2 or later.
References
Related vulnerabilities
Recent vulnerabilities recorded for org.apache.camel:camel-core.
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