Deserialization of Untrusted Data Affecting tomcat7 package, versions <7.0.52-1ubuntu0.16+esm1


Severity

Recommended
low

Based on Ubuntu security rating

    Threat Intelligence

    Exploit Maturity
    Proof of concept
    EPSS
    92.25% (100th percentile)

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  • Snyk ID SNYK-UBUNTU1404-TOMCAT7-1624607
  • published 25 Jul 2024
  • disclosed 20 May 2020

How to fix?

Upgrade Ubuntu:14.04 tomcat7 to version 7.0.52-1ubuntu0.16+esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tomcat7 package and not the tomcat7 package as distributed by Ubuntu. See How to fix? for Ubuntu:14.04 relevant fixed versions and status.

When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a) an attacker is able to control the contents and name of a file on the server; and b) the server is configured to use the PersistenceManager with a FileStore; and c) the PersistenceManager is configured with sessionAttributeValueClassNameFilter="null" (the default unless a SecurityManager is used) or a sufficiently lax filter to allow the attacker provided object to be deserialized; and d) the attacker knows the relative file path from the storage location used by FileStore to the file the attacker has control over; then, using a specifically crafted request, the attacker will be able to trigger remote code execution via deserialization of the file under their control. Note that all of conditions a) to d) must be true for the attack to succeed.

References

CVSS Scores

version 3.1
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NVD

7 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
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SUSE

7.5 high
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Red Hat

7 high