CVE-2018-12538: Jetty server Access And Integrity Issue Within Vulnerability

HIGH
Advisory Identifier: GHSA-mwcx-532g-8pq3
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CVSS 8.8
CWE-384 CWE-6
Published
Advisory Summary

CVE-2018-12538 is a HIGH (CVSS 8.8) access and integrity issue within vulnerability (CWE-384: Session Fixation) affecting Jetty server libraries in the Maven ecosystem. The issue involves access and integrity issue within eclipse jetty. Remediation is available by upgrading affected packages to version 9.4.11.v20180605.

CVE-2018-12538 at a Glance

CVE Identifier CVE-2018-12538
GHSA Identifier GHSA-mwcx-532g-8pq3
Severity HIGH
CVSS v3.1 Base Score 8.8
CWE Classification CWE-384: Session Fixation
Affected Product Jetty server
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 8.8

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
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-2018-12538

To remediate this vulnerability, upgrade all affected Jetty server 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.eclipse.jetty:jetty-server fixed: 9.4.11.v20180605 
<dependency>
    <groupId>org.eclipse.jetty</groupId>
    <artifactId>jetty-server</artifactId>
    <version>9.4.11.v20180605</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.eclipse.jetty

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2018-12538, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.eclipse.jetty

Analyze the terminal output to locate any version of Jetty server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.4.11.v20180605), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.eclipse.jetty 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-384: Session Fixation, where authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions. In Jetty server, 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

In Eclipse Jetty versions 9.4.0 through 9.4.8, when using the optional Jetty provided FileSessionDataStore for persistent storage of HttpSession details, it is possible for a malicious user to access/hijack other HttpSessions and even delete unmatched HttpSessions present in the FileSystem's storage for the FileSessionDataStore.

CVE-2018-12538 Affected Jetty server Versions

1 component(s)
Fixed Versions:
9.4.11.v20180605
Product / Package Ecosystem Affected Versions Fixed Version
org.eclipse.jetty:jetty-server
maven/org.eclipse.jetty/jetty-server
Maven
≥ 9.4.0
< 9.4.11.v20180605
9.4.11.v20180605

References

NVD — CVE-2018-12538 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-12538
bugs.eclipse.org/bugs/show_bug.cgi WEB
https://bugs.eclipse.org/bugs/show_bug.cgi?id=536018
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-mwcx-532g-8pq3
lists.apache.org/thread.html/r1b1038... WEB
https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0@%3Cissues.bookkeeper.apache.org%3E
Jetty server Security Information SECURITY
https://security.netapp.com/advisory/ntap-20181014-0001
Jetty server Security Information SECURITY
https://www.oracle.com/security-alerts/cpuoct2020.html
Jetty server Security Information SECURITY
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Jetty server Security Information SECURITY
http://www.securitytracker.com/id/1041194

Frequently Asked Questions

What is CVE-2018-12538?
CVE-2018-12538 is a security vulnerability in Jetty server involving Access and integrity issue within Eclipse Jetty under CWE-384: Session Fixation.
Which Jetty server versions are affected?
Affected versions include releases prior to 9.4.11.v20180605 across affected packages: org.eclipse.jetty:jetty-server.
What version fixes CVE-2018-12538?
Upgrading to 9.4.11.v20180605 (or the latest patched release for your respective branch) resolves the vulnerability.
Is jetty-server affected?
Yes, org.eclipse.jetty:jetty-server is affected in releases prior to 9.4.11.v20180605. Upgrade your dependency to 9.4.11.v20180605 or later.
What is the CVSS score of CVE-2018-12538?
CVE-2018-12538 has a CVSS v3.1 base score of 8.8 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2018-12538?
CVE-2018-12538 is classified under CWE-384: Session Fixation (Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.).
How can I check Maven dependencies for CVE-2018-12538?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.eclipse.jetty'. 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-mwcx-532g-8pq3",
  "modified" : "2022-04-26T18:56:02Z",
  "published" : "2018-10-16T17:44:11Z",
  "aliases" : [ "CVE-2018-12538" ],
  "summary" : "Access and integrity issue within Eclipse Jetty",
  "details" : "In Eclipse Jetty versions 9.4.0 through 9.4.8, when using the optional Jetty provided FileSessionDataStore for persistent storage of HttpSession details, it is possible for a malicious user to access/hijack other HttpSessions and even delete unmatched HttpSessions present in the FileSystem's storage for the FileSessionDataStore.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.eclipse.jetty:jetty-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "9.4.0"
      }, {
        "fixed" : "9.4.11.v20180605"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 9.4.10.v20180503"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-12538"
  }, {
    "type" : "WEB",
    "url" : "https://bugs.eclipse.org/bugs/show_bug.cgi?id=536018"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-mwcx-532g-8pq3"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0@%3Cissues.bookkeeper.apache.org%3E"
  }, {
    "type" : "WEB",
    "url" : "https://security.netapp.com/advisory/ntap-20181014-0001"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/security-alerts/cpuoct2020.html"
  }, {
    "type" : "WEB",
    "url" : "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"
  }, {
    "type" : "WEB",
    "url" : "http://www.securitytracker.com/id/1041194"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-384", "CWE-6" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T21:47:31Z",
    "nvd_published_at" : null
  }
}