CVE-2018-18240: Pippo core Remote Code Execution Vulnerability

CRITICAL
Advisory Identifier: GHSA-h892-x453-86wc
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CVSS 9.8
CWE-502
Published
Advisory Summary

CVE-2018-18240 is a CRITICAL (CVSS 9.8) remote code execution vulnerability (CWE-502: Deserialization of Untrusted Data) affecting Pippo core libraries in the Maven ecosystem. The issue involves pippo rce vulnerability. Remediation is available by upgrading affected packages to version 1.12.0.

CVE-2018-18240 at a Glance

CVE Identifier CVE-2018-18240
GHSA Identifier GHSA-h892-x453-86wc
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-502: Deserialization of Untrusted Data
Affected Product Pippo core
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 9.8

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2018-18240

To remediate this vulnerability, upgrade all affected Pippo core dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

ro.pippo:pippo-core fixed: 1.12.0 
<dependency>
    <groupId>ro.pippo</groupId>
    <artifactId>pippo-core</artifactId>
    <version>1.12.0</version>
</dependency>
ro.pippo:pippo-session fixed: 1.12.0 
<dependency>
    <groupId>ro.pippo</groupId>
    <artifactId>pippo-session</artifactId>
    <version>1.12.0</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=ro.pippo

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2018-18240, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=ro.pippo

Analyze the terminal output to locate any version of Pippo core in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.12.0), your application is affected.

Note: The mvn dependency:tree -Dincludes=ro.pippo command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-502: Deserialization of Untrusted Data, where the product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. In Pippo core, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

Pippo through 1.11.0 allows remote code execution via a command to java.lang.ProcessBuilder because the XstreamEngine component does not use XStream's available protection mechanisms to restrict unmarshalling.

CVE-2018-18240 Affected Pippo core Versions

2 component(s)
Fixed Versions:
1.12.0
Product / Package Ecosystem Affected Versions Fixed Version
ro.pippo:pippo-core
maven/ro.pippo/pippo-core
Maven
< 1.12.0
1.12.0
ro.pippo:pippo-session
maven/ro.pippo/pippo-session
Maven
< 1.12.0
1.12.0

References

NVD — CVE-2018-18240 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-18240
Pippo core Source Repository REPOSITORY
https://github.com/pippo-java/pippo/issues/454
Security Fix Commit FIX COMMIT
https://github.com/pippo-java/pippo/commit/c6b26551a82d2dd32097fcb17c13c3b830916296
Pippo core Source Repository REPOSITORY
https://github.com/pippo-java/pippo

Frequently Asked Questions

What is CVE-2018-18240?
CVE-2018-18240 is a security vulnerability in Pippo core involving Pippo RCE Vulnerability under CWE-502: Deserialization of Untrusted Data.
Which Pippo core versions are affected?
Affected versions include releases prior to 1.12.0 across affected packages: ro.pippo:pippo-core, ro.pippo:pippo-session.
What version fixes CVE-2018-18240?
Upgrading to 1.12.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is pippo-core affected?
Yes, ro.pippo:pippo-core is affected in releases prior to 1.12.0. Upgrade your dependency to 1.12.0 or later.
Is pippo-session affected?
Yes, ro.pippo:pippo-session is affected in releases prior to 1.12.0. Upgrade your dependency to 1.12.0 or later.
What is the CVSS score of CVE-2018-18240?
CVE-2018-18240 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2018-18240?
CVE-2018-18240 is classified under CWE-502: Deserialization of Untrusted Data (The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.).
How can I check Maven dependencies for CVE-2018-18240?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=ro.pippo'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-h892-x453-86wc",
  "modified" : "2023-10-06T01:08:08Z",
  "published" : "2022-05-13T01:19:33Z",
  "aliases" : [ "CVE-2018-18240" ],
  "summary" : "Pippo RCE Vulnerability",
  "details" : "Pippo through 1.11.0 allows remote code execution via a command to java.lang.ProcessBuilder because the XstreamEngine component does not use XStream's available protection mechanisms to restrict unmarshalling.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "ro.pippo:pippo-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.12.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.11.0"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "ro.pippo:pippo-session"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.12.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.11.0"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-18240"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pippo-java/pippo/issues/454"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pippo-java/pippo/commit/c6b26551a82d2dd32097fcb17c13c3b830916296"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/pippo-java/pippo"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-502" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-20T23:22:46Z",
    "nvd_published_at" : "2018-10-11T07:29:00Z"
  }
}