Vulnerabilities in pkg:maven/ro.pippo/pippo-fastjson

PACKAGE
Advisory Identifier: GHSA-xjrr-xv9m-4pw5
Share
Advisory Summary

CVE-2017-18349 is a CRITICAL (CVSS 9.8) fastjson vulnerability (CWE-20: Improper Input Validation) affecting Fastjson libraries in the Maven ecosystem. The issue involves fastjson. Remediation is available by upgrading affected packages to version 1.2.31, 1.12.0.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/ro.pippo/pippo-fastjson

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:maven/ro.pippo/pippo-fastjson. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-xjrr-xv9m-4pw5 CVE-2017-18349 CRITICAL Improper Input Validation in alilibaba:fastjson

CVE-2017-18349 at a Glance

CVE Identifier CVE-2017-18349
GHSA Identifier GHSA-xjrr-xv9m-4pw5
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-20: Improper Input Validation
Affected Product Fastjson
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-2017-18349

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

com.alibaba:fastjson fixed: 1.2.31 
<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.31</version>
</dependency>
ro.pippo:pippo-fastjson fixed: 1.12.0 
<dependency>
    <groupId>ro.pippo</groupId>
    <artifactId>pippo-fastjson</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=com.alibaba

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2017-18349, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=com.alibaba

Analyze the terminal output to locate any version of Fastjson in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.2.31), your application is affected.

Note: The mvn dependency:tree -Dincludes=com.alibaba 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-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Fastjson, 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

parseObject in Fastjson before 1.2.25, as used in FastjsonEngine in Pippo 1.11.0 and other products, allows remote attackers to execute arbitrary code via a crafted JSON request, as demonstrated by a crafted rmi:// URI in the dataSourceName field of HTTP POST data to the Pippo /json URI, which is mishandled in AjaxApplication.java.

CVE-2017-18349 Affected Fastjson Versions

2 component(s)
Fixed Versions:
1.2.311.12.0
Product / Package Ecosystem Affected Versions Fixed Version
com.alibaba:fastjson
maven/com.alibaba/fastjson
Maven
< 1.2.31
1.2.31
ro.pippo:pippo-fastjson
maven/ro.pippo/pippo-fastjson
Maven
< 1.12.0
1.12.0

References

NVD — CVE-2017-18349 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-18349
Fastjson Source Repository REPOSITORY
https://github.com/pippo-java/pippo/issues/466
Security Fix Commit FIX COMMIT
https://github.com/pippo-java/pippo/commit/8443377d3c5b35acca190a66894b4f95e4051be2
fortiguard.com/encyclopedia/ips/44... WEB
https://fortiguard.com/encyclopedia/ips/44059
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-xjrr-xv9m-4pw5
Fastjson Source Repository REPOSITORY
https://github.com/alibaba/fastjson
GitHub Advisory / Wiki ADVISORY
https://github.com/alibaba/fastjson/wiki/security_update_20170315

Frequently Asked Questions

What is CVE-2017-18349?
CVE-2017-18349 is a security vulnerability in Fastjson involving fastjson under CWE-20: Improper Input Validation.
Which Fastjson versions are affected?
Affected versions include releases prior to 1.2.31, 1.12.0 across affected packages: com.alibaba:fastjson, ro.pippo:pippo-fastjson.
What version fixes CVE-2017-18349?
Upgrading to 1.2.31, 1.12.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is fastjson affected?
Yes, com.alibaba:fastjson is affected in releases prior to 1.2.31. Upgrade your dependency to 1.2.31 or later.
Is pippo-fastjson affected?
Yes, ro.pippo:pippo-fastjson 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-2017-18349?
CVE-2017-18349 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-2017-18349?
CVE-2017-18349 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Maven dependencies for CVE-2017-18349?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=com.alibaba'. 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-xjrr-xv9m-4pw5",
  "modified" : "2022-09-14T21:57:36Z",
  "published" : "2018-10-24T19:42:03Z",
  "aliases" : [ "CVE-2017-18349" ],
  "summary" : "Improper Input Validation in alilibaba:fastjson",
  "details" : "parseObject in Fastjson before 1.2.25, as used in FastjsonEngine in Pippo 1.11.0 and other products, allows remote attackers to execute arbitrary code via a crafted JSON request, as demonstrated by a crafted rmi:// URI in the dataSourceName field of HTTP POST data to the Pippo /json URI, which is mishandled in AjaxApplication.java.",
  "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" : "com.alibaba:fastjson"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.2.31"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.2.24"
    }
  }, {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "ro.pippo:pippo-fastjson"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.12.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-18349"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pippo-java/pippo/issues/466"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pippo-java/pippo/commit/8443377d3c5b35acca190a66894b4f95e4051be2"
  }, {
    "type" : "WEB",
    "url" : "https://fortiguard.com/encyclopedia/ips/44059"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-xjrr-xv9m-4pw5"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/alibaba/fastjson"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/alibaba/fastjson/wiki/security_update_20170315"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T22:03:42Z",
    "nvd_published_at" : null
  }
}