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medium severity
- Vulnerable module: com.google.code.gson:gson
- Introduced through: org.constretto:constretto-core@2.2.3 and org.constretto:constretto-spring@2.2.3
Detailed paths
-
Introduced through: Cantara/HTTPLoadTest-baseline@Cantara/HTTPLoadTest-baseline#23b777538d9f47fbafa53b851218cdf775d2db16 › org.constretto:constretto-core@2.2.3 › com.google.code.gson:gson@2.2.4
-
Introduced through: Cantara/HTTPLoadTest-baseline@Cantara/HTTPLoadTest-baseline#23b777538d9f47fbafa53b851218cdf775d2db16 › org.constretto:constretto-spring@2.2.3 › org.constretto:constretto-core@2.2.3 › com.google.code.gson:gson@2.2.4
Overview
Affected versions of this package are vulnerable to Deserialization of Untrusted Data via the writeReplace()
method in internal classes, which may allow a denial of service attack if combined with another exploit.
Details
Serialization is a process of converting an object into a sequence of bytes which can be persisted to a disk or database or can be sent through streams. The reverse process of creating object from sequence of bytes is called deserialization. Serialization is commonly used for communication (sharing objects between multiple hosts) and persistence (store the object state in a file or a database). It is an integral part of popular protocols like Remote Method Invocation (RMI), Java Management Extension (JMX), Java Messaging System (JMS), Action Message Format (AMF), Java Server Faces (JSF) ViewState, etc.
Deserialization of untrusted data (CWE-502), is when the application deserializes untrusted data without sufficiently verifying that the resulting data will be valid, letting the attacker to control the state or the flow of the execution.
Java deserialization issues have been known for years. However, interest in the issue intensified greatly in 2015, when classes that could be abused to achieve remote code execution were found in a popular library (Apache Commons Collection). These classes were used in zero-days affecting IBM WebSphere, Oracle WebLogic and many other products.
An attacker just needs to identify a piece of software that has both a vulnerable class on its path, and performs deserialization on untrusted data. Then all they need to do is send the payload into the deserializer, getting the command executed.
Developers put too much trust in Java Object Serialization. Some even de-serialize objects pre-authentication. When deserializing an Object in Java you typically cast it to an expected type, and therefore Java's strict type system will ensure you only get valid object trees. Unfortunately, by the time the type checking happens, platform code has already created and executed significant logic. So, before the final type is checked a lot of code is executed from the readObject() methods of various objects, all of which is out of the developer's control. By combining the readObject() methods of various classes which are available on the classpath of the vulnerable application, an attacker can execute functions (including calling Runtime.exec() to execute local OS commands).
Remediation
Upgrade com.google.code.gson:gson
to version 2.8.9 or higher.
References
medium severity
- Vulnerable module: org.eclipse.jetty:jetty-servlets
- Introduced through: nu.validator:validator@20.7.2
Detailed paths
-
Introduced through: Cantara/HTTPLoadTest-baseline@Cantara/HTTPLoadTest-baseline#23b777538d9f47fbafa53b851218cdf775d2db16 › nu.validator:validator@20.7.2 › org.eclipse.jetty:jetty-servlets@9.4.18.v20190429
Overview
org.eclipse.jetty:jetty-servlets is an Utility Servlets from Jetty
Affected versions of this package are vulnerable to Information Exposure. Requests to the ConcatServlet
and WelcomeFilter
are able to access protected resources within the WEB-INF
directory.
For example, a request to the ConcatServlet
with a URI of /concat?/%2557EB-INF/web.xml
can retrieve the web.xml
file.
This occurs because both ConcatServlet
and WelcomeFilter
decode the supplied path to verify it is not within the WEB-INF
or META-INF
directories. It then uses this decoded path to call RequestDispatcher
which will also do decoding of the path. This double decoding allows paths with a doubly encoded WEB-INF
to bypass this security check.
Remediation
Upgrade org.eclipse.jetty:jetty-servlets
to version 9.4.41, 10.0.3, 11.0.3 or higher.
References
low severity
- Vulnerable module: org.eclipse.jetty:jetty-servlets
- Introduced through: nu.validator:validator@20.7.2
Detailed paths
-
Introduced through: Cantara/HTTPLoadTest-baseline@Cantara/HTTPLoadTest-baseline#23b777538d9f47fbafa53b851218cdf775d2db16 › nu.validator:validator@20.7.2 › org.eclipse.jetty:jetty-servlets@9.4.18.v20190429
Overview
org.eclipse.jetty:jetty-servlets is an Utility Servlets from Jetty
Affected versions of this package are vulnerable to Arbitrary Code Execution. If a user sends a request to a org.eclipse.jetty.servlets.CGI
Servlet for a binary with a space in its name, the servlet will escape the command by wrapping it in quotation marks.
Impact:
This behavior may bypass alias checks, and it may cause other unintended behaviors if a command prefix is configured.
Note:
In Jetty 9.x, 10.x, and 11.x the org.eclipse.jetty.servlets.CGI
has been deprecated.
In Jetty 12 (all environments) the org.eclipse.jetty.servlets.CGI
has been entirely removed.
PoC
if (execCmd.length() > 0 && execCmd.charAt(0) != '"' && execCmd.contains(" "))
execCmd = "\"" + execCmd + "\"";
Remediation
Upgrade org.eclipse.jetty:jetty-servlets
to version 9.4.52, 10.0.16, 11.0.16 or higher.
References
low severity
- Vulnerable module: junit:junit
- Introduced through: org.constretto:constretto-core@2.2.3, org.constretto:constretto-spring@2.2.3 and others
Detailed paths
-
Introduced through: Cantara/HTTPLoadTest-baseline@Cantara/HTTPLoadTest-baseline#23b777538d9f47fbafa53b851218cdf775d2db16 › org.constretto:constretto-core@2.2.3 › junit:junit@4.12Remediation: Upgrade to org.constretto:constretto-core@2.2.3.
-
Introduced through: Cantara/HTTPLoadTest-baseline@Cantara/HTTPLoadTest-baseline#23b777538d9f47fbafa53b851218cdf775d2db16 › org.constretto:constretto-spring@2.2.3 › junit:junit@4.12Remediation: Upgrade to org.constretto:constretto-spring@2.2.3.
-
Introduced through: Cantara/HTTPLoadTest-baseline@Cantara/HTTPLoadTest-baseline#23b777538d9f47fbafa53b851218cdf775d2db16 › org.constretto:constretto-core@2.2.3 › org.constretto:constretto-api@2.2.3 › junit:junit@4.12Remediation: Upgrade to org.constretto:constretto-core@2.2.3.
-
Introduced through: Cantara/HTTPLoadTest-baseline@Cantara/HTTPLoadTest-baseline#23b777538d9f47fbafa53b851218cdf775d2db16 › org.constretto:constretto-spring@2.2.3 › org.constretto:constretto-api@2.2.3 › junit:junit@4.12Remediation: Upgrade to org.constretto:constretto-spring@2.2.3.
-
Introduced through: Cantara/HTTPLoadTest-baseline@Cantara/HTTPLoadTest-baseline#23b777538d9f47fbafa53b851218cdf775d2db16 › org.constretto:constretto-spring@2.2.3 › org.constretto:constretto-core@2.2.3 › junit:junit@4.12Remediation: Upgrade to org.constretto:constretto-spring@2.2.3.
-
Introduced through: Cantara/HTTPLoadTest-baseline@Cantara/HTTPLoadTest-baseline#23b777538d9f47fbafa53b851218cdf775d2db16 › org.glassfish.jersey.media:jersey-media-multipart@2.42 › org.jvnet.mimepull:mimepull@1.9.15 › junit:junit@4.12Remediation: Upgrade to org.glassfish.jersey.media:jersey-media-multipart@2.42.
-
Introduced through: Cantara/HTTPLoadTest-baseline@Cantara/HTTPLoadTest-baseline#23b777538d9f47fbafa53b851218cdf775d2db16 › org.constretto:constretto-spring@2.2.3 › org.constretto:constretto-core@2.2.3 › org.constretto:constretto-api@2.2.3 › junit:junit@4.12Remediation: Upgrade to org.constretto:constretto-spring@2.2.3.
Overview
junit:junit is an unit testing framework for Java
Affected versions of this package are vulnerable to Information Exposure. The JUnit4 test rule TemporaryFolder
contains a local information disclosure vulnerability. On Unix like systems, the system's temporary directory is shared between all users on that system. Because of this, when files and directories are written into this directory they are, by default, readable by other users on that same system.
Note: This vulnerability does not allow other users to overwrite the contents of these directories or files. This only affects Unix like systems.
Remediation
Upgrade junit:junit
to version 4.13.1 or higher.