Published:2015/08/20  Last Updated:2015/08/20

Apache Tapestry deserializes untrusted data


Apache Tapestry contains a vulnerability where it may deserialize untrusted data.

Products Affected

Applications that are created using the following versions are affected:

  • Apache Tapestry 5.0.x (all versions)
  • Apache Tapestry 5.1.x (all versions)
  • Apache Tapestry 5.2.x (all versions)
  • Apache Tapestry 5.3 to 5.3.5
According to the developer, unsupported versions of Tapestry, 3.x and 4.x versions may be affected by this issue.


Apache Tapestry is a framework for creating Java web applications. Apache Tapestry contains an interface where client side serialized data sent to the server is deserialized after it is received by the server. This data serialization / deserialization process does not contain data validation. Therefore, if the serialized data is altered, the server will deserailze data without validating the data (CWE-502).


When specially crafted input is processed, arbitrary files may be written or arbitrary code may be executed on the application server.


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Update to the latest version according to the information provided by the developer.


JPCERT/CC Addendum

This JVN publication was delayed to 2015/08/20 after the developer fix was developed. From the fiscal year 2011, JPCERT/CC is using a new vendor coordination procedure. This new procedure came from the recommendation of the fiscal year 2010 "Study Group on Information System Vulnerability Handling" aimed at more timely JVN publications.

Vulnerability Analysis by JPCERT/CC

Analyzed on 2015.08.20 (CVSS Base Metrics)

What is CVSS?

Measures Severity Description
Access Vector(AV) Local (L) Adjacent Network (A) Network (N) A vulnerability exploitable with network access means the vulnerable software is bound to the network stack and the attacker does not require local network access or local access. Such a vulnerability is often termed "remotely exploitable".
Access Complexity(AC) High (H) Medium (M) Low (L) The access conditions are somewhat specialized.
Authentication(Au) Multiple (M) Single (S) None (N) Authentication is not required to exploit the vulnerability.
Confidentiality Impact(C) None (N) Partial (P) Complete (C) There is considerable informational disclosure. Access to some system files is possible, but the attacker does not have control over what is obtained, or the scope of the loss is constrained.
Integrity Impact(I) None (N) Partial (P) Complete (C) Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.
Availability Impact(A) None (N) Partial (P) Complete (C) There is reduced performance or interruptions in resource availability.

Base Score:6.8


Takeshi Terada of Mitsui Bussan Secure Directions, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2014-1972
JVN iPedia JVNDB-2015-000118