Vulnerabilities in pkg:maven/org.jboss.eap/wildfly-undertow

PACKAGE
Advisory Identifier: GHSA-prfw-3qx6-g9xr
Advisory Summary

CVE-2018-1048 is a HIGH (CVSS 7.5) improper limitation of a pathname vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Wildfly undertow libraries in the Maven ecosystem. The issue involves improper limitation of a pathname to a restricted directory in jboss eap undertow. Remediation is available by upgrading affected packages to version 7.1.1.GA.

2 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/org.jboss.eap/wildfly-undertow

2 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:maven/org.jboss.eap/wildfly-undertow. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-prfw-3qx6-g9xr CVE-2018-1048 HIGH Improper Limitation of a Pathname to a Restricted Directory in Jboss EAP Undertow
GHSA-47mp-rq2x-wjf2 CVE-2018-1067 MODERATE Improper Neutralization of CRLF Sequences in HTTP Headers in Undertow

CVE-2018-1048 at a Glance

CVE Identifier CVE-2018-1048
GHSA Identifier GHSA-prfw-3qx6-g9xr
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Wildfly undertow
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

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 None (I:N)
Availability None (A:N)

How to Fix CVE-2018-1048

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

org.jboss.eap:wildfly-undertow fixed: 7.1.1.GA
<dependency>
    <groupId>org.jboss.eap</groupId>
    <artifactId>wildfly-undertow</artifactId>
    <version>7.1.1.GA</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=org.jboss.eap

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2018-1048, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.jboss.eap

Analyze the terminal output to locate any version of Wildfly undertow in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.1.1.GA), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.jboss.eap 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-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Wildfly undertow, 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

It was found that the AJP connector in undertow, as shipped in Jboss EAP 7.1.0.GA, does not use the ALLOW_ENCODED_SLASH option and thus allow the the slash / anti-slash characters encoded in the url which may lead to path traversal and result in the information disclosure of arbitrary local files.

CVE-2018-1048 Affected Wildfly undertow Versions

1 component(s)
Fixed Versions:
7.1.1.GA
Product / Package Ecosystem Affected Versions Fixed Version
org.jboss.eap:wildfly-undertow
Maven
≥ 7.1.0.GA
< 7.1.1.GA
All 1 versions
7.1.0.GA
7.1.1.GA

References

Frequently Asked Questions

What is CVE-2018-1048?
CVE-2018-1048 is a security vulnerability in Wildfly undertow involving Improper Limitation of a Pathname to a Restricted Directory in Jboss EAP Undertow under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Wildfly undertow versions are affected?
Affected versions include releases prior to 7.1.1.GA across affected packages: org.jboss.eap:wildfly-undertow.
What version fixes CVE-2018-1048?
Upgrading to 7.1.1.GA (or the latest patched release for your respective branch) resolves the vulnerability.
Is wildfly-undertow affected?
Yes, org.jboss.eap:wildfly-undertow is affected in releases prior to 7.1.1.GA. Upgrade your dependency to 7.1.1.GA or later.
What is the CVSS score of CVE-2018-1048?
CVE-2018-1048 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2018-1048?
CVE-2018-1048 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check Maven dependencies for CVE-2018-1048?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.jboss.eap'. 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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-prfw-3qx6-g9xr",
  "modified" : "2022-06-30T14:01:42Z",
  "published" : "2022-05-13T01:12:24Z",
  "aliases" : [ "CVE-2018-1048" ],
  "summary" : "Improper Limitation of a Pathname to a Restricted Directory in Jboss EAP Undertow",
  "details" : "It was found that the AJP connector in undertow, as shipped in Jboss EAP 7.1.0.GA, does not use the ALLOW_ENCODED_SLASH option and thus allow the the slash / anti-slash characters encoded in the url which may lead to path traversal and result in the information disclosure of arbitrary local files.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.jboss.eap:wildfly-undertow"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.1.0.GA"
      }, {
        "fixed" : "7.1.1.GA"
      } ]
    } ],
    "versions" : [ "7.1.0.GA" ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-1048"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2018:0478"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2018:0479"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2018:0480"
  }, {
    "type" : "WEB",
    "url" : "https://access.redhat.com/errata/RHSA-2018:0481"
  }, {
    "type" : "WEB",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=1534343"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-06-30T14:01:42Z",
    "nvd_published_at" : "2018-01-24T23:29:00Z"
  }
}