CVE-2018-1304: Apache Tomcat Apache Tomcat Unauthorized Access Vulnerability Vulnerability

MODERATE
Advisory Identifier: GHSA-6rxj-58jh-436r
Share
CVSS 5.9
Published
Advisory Summary

CVE-2018-1304 is a MODERATE (CVSS 5.9) apache tomcat unauthorized access vulnerability vulnerability (General Security Weakness) affecting Apache Tomcat libraries in the Maven ecosystem. The issue involves apache tomcat unauthorized access vulnerability. Remediation is available by upgrading affected packages to version 9.0.5, 8.5.28, 8.0.51, 7.0.86.

CVE-2018-1304 at a Glance

CVE Identifier CVE-2018-1304
GHSA Identifier GHSA-6rxj-58jh-436r
Severity MODERATE
CVSS v3.1 Base Score 5.9
CWE Classification General Security Weakness
Affected Product Apache Tomcat
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 5.9

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

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
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-2018-1304

To remediate this vulnerability, upgrade all affected Apache Tomcat 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.apache.tomcat.embed:tomcat-embed-core fixed: 9.0.5 
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
    <version>9.0.5</version>
</dependency>
org.apache.tomcat.embed:tomcat-embed-core fixed: 8.5.28 
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
    <version>8.5.28</version>
</dependency>
org.apache.tomcat.embed:tomcat-embed-core fixed: 8.0.51 
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
    <version>8.0.51</version>
</dependency>
org.apache.tomcat.embed:tomcat-embed-core fixed: 7.0.86 
<dependency>
    <groupId>org.apache.tomcat.embed</groupId>
    <artifactId>tomcat-embed-core</artifactId>
    <version>7.0.86</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.apache.tomcat.embed

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2018-1304, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.tomcat.embed

Analyze the terminal output to locate any version of Apache Tomcat in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 9.0.5), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.tomcat.embed 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 General Security Weakness. In Apache Tomcat, 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

The URL pattern of "" (the empty string) which exactly maps to the context root was not correctly handled in Apache Tomcat 9.0.0.M1 to 9.0.4, 8.5.0 to 8.5.27, 8.0.0.RC1 to 8.0.49 and 7.0.0 to 7.0.84 when used as part of a security constraint definition. This caused the constraint to be ignored. It was, therefore, possible for unauthorised users to gain access to web application resources that should have been protected. Only security constraints with a URL pattern of the empty string were affected.

CVE-2018-1304 Affected Apache Tomcat Versions

4 component(s)
Fixed Versions:
9.0.58.5.288.0.517.0.86
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.tomcat.embed:tomcat-embed-core
maven/org.apache.tomcat.embed/tomcat-embed-core
Maven
≥ 9.0.0
< 9.0.5
9.0.5
org.apache.tomcat.embed:tomcat-embed-core
maven/org.apache.tomcat.embed/tomcat-embed-core
Maven
≥ 8.5.0
< 8.5.28
8.5.28
org.apache.tomcat.embed:tomcat-embed-core
maven/org.apache.tomcat.embed/tomcat-embed-core
Maven
≥ 8.0.0
< 8.0.51
8.0.51
org.apache.tomcat.embed:tomcat-embed-core
maven/org.apache.tomcat.embed/tomcat-embed-core
Maven
≥ 7.0.0
< 7.0.86
7.0.86

References

NVD — CVE-2018-1304 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-1304
Security Fix Commit FIX COMMIT
https://github.com/apache/tomcat80/commit/9e700b93e3bf5c605267d20568a964169f9e0b79
Security Fix Commit FIX COMMIT
https://github.com/apache/tomcat/commit/723ea6a5bc5e7bc49e5ef84273c3b3c164a6a4fd
Security Fix Commit FIX COMMIT
https://github.com/apache/tomcat/commit/5af7c13cff7cc8366c5997418e820989fabb8f48
Security Fix Commit FIX COMMIT
https://github.com/apache/tomcat/commit/2d69fde135302e8cff984bb2131ec69f2e396964
lists.apache.org/thread.html/r9136ff... WEB
https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c%40%3Cdev.tomcat.apache.org%3E
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https://lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9@%3Cdev.tomcat.apache.org%3E
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https://lists.apache.org/thread.html/r6ccee4e849bc77df0840c7f853f6bd09d426f6741247da2b7429d5d9%40%3Cdev.tomcat.apache.org%3E
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https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0@%3Cdev.tomcat.apache.org%3E
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https://lists.apache.org/thread.html/r48c1444845fe15a823e1374674bfc297d5008a5453788099ea14caf0%40%3Cdev.tomcat.apache.org%3E
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https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/r3bbb80... WEB
https://lists.apache.org/thread.html/r3bbb800a816d0a51eccc5a228c58736960a9fffafa581a225834d97d%40%3Cdev.tomcat.apache.org%3E
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https://lists.apache.org/thread.html/e85e83e9954f169bbb77b44baae5a33d8de878df557bb32b7f793661@%3Cdev.tomcat.apache.org%3E
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https://lists.apache.org/thread.html/e85e83e9954f169bbb77b44baae5a33d8de878df557bb32b7f793661%40%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/b5e3f51... WEB
https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/b5e3f51... WEB
https://lists.apache.org/thread.html/b5e3f51d28cd5d9b1809f56594f2cf63dcd6a90429e16ea9f83bbedc%40%3Cdev.tomcat.apache.org%3E
access.redhat.com/errata/rhsa-2018:14... WEB
https://access.redhat.com/errata/RHSA-2018:1447
lists.apache.org/thread.html/b1d7e24... WEB
https://lists.apache.org/thread.html/b1d7e2425d6fd2cebed40d318f9365b44546077e10949b01b1f8a0fb@%3Cannounce.tomcat.apache.org%3E
lists.apache.org/thread.html/r9136ff... WEB
https://lists.apache.org/thread.html/r9136ff5b13e4f1941360b5a309efee2c114a14855578c3a2cbe5d19c@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/raba0fa... WEB
https://lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a%40%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/raba0fa... WEB
https://lists.apache.org/thread.html/raba0fabaf4d56d4325ab2aca8814f0b30a237ab83d8106b115ee279a@%3Cdev.tomcat.apache.org%3E
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2018/03/msg00004.html
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2018/06/msg00008.html
lists.debian.org/debian-lts-announce... WEB
https://lists.debian.org/debian-lts-announce/2018/07/msg00044.html
Apache Tomcat Security Information SECURITY
https://security.netapp.com/advisory/ntap-20180706-0001
usn.ubuntu.com/3665-1 WEB
https://usn.ubuntu.com/3665-1
Apache Tomcat Security Information SECURITY
https://web.archive.org/web/20200227102806/http://www.securityfocus.com/bid/103170
Apache Tomcat Security Information SECURITY
https://web.archive.org/web/20200516074457/http://www.securitytracker.com/id/1040427
Apache Tomcat Security Information SECURITY
https://www.debian.org/security/2018/dsa-4281
Apache Tomcat Security Information SECURITY
https://www.oracle.com/security-alerts/cpuapr2020.html
Apache Tomcat Security Information SECURITY
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
Apache Tomcat Security Information SECURITY
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
access.redhat.com/errata/rhsa-2018:04... WEB
https://access.redhat.com/errata/RHSA-2018:0465
access.redhat.com/errata/rhsa-2018:04... WEB
https://access.redhat.com/errata/RHSA-2018:0466
access.redhat.com/errata/rhsa-2018:13... WEB
https://access.redhat.com/errata/RHSA-2018:1320
access.redhat.com/errata/rhsa-2018:14... WEB
https://access.redhat.com/errata/RHSA-2018:1448
access.redhat.com/errata/rhsa-2018:14... WEB
https://access.redhat.com/errata/RHSA-2018:1449
access.redhat.com/errata/rhsa-2018:14... WEB
https://access.redhat.com/errata/RHSA-2018:1450
access.redhat.com/errata/rhsa-2018:14... WEB
https://access.redhat.com/errata/RHSA-2018:1451
access.redhat.com/errata/rhsa-2018:29... WEB
https://access.redhat.com/errata/RHSA-2018:2939
access.redhat.com/errata/rhsa-2019:22... WEB
https://access.redhat.com/errata/RHSA-2019:2205
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-6rxj-58jh-436r
Apache Tomcat Source Repository REPOSITORY
https://github.com/apache/tomcat
lists.apache.org/thread.html/1dd0a59... WEB
https://lists.apache.org/thread.html/1dd0a59c1295cc08ce4c9e7edae5ad2268acc9ba55adcefa0532e5ba%40%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/1dd0a59... WEB
https://lists.apache.org/thread.html/1dd0a59c1295cc08ce4c9e7edae5ad2268acc9ba55adcefa0532e5ba@%3Cdev.tomcat.apache.org%3E
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https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551%40%3Cdev.tomcat.apache.org%3E
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https://lists.apache.org/thread.html/343558d982879bf88ec20dbf707f8c11255f8e219e81d45c4f8d0551@%3Cdev.tomcat.apache.org%3E
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https://lists.apache.org/thread.html/3d19773b4cf0377db62d1e9328bf9160bf1819f04f988315086931d7@%3Cdev.tomcat.apache.org%3E
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lists.apache.org/thread.html/845312a... WEB
https://lists.apache.org/thread.html/845312a10aabbe2c499fca94003881d2c79fc993d85f34c1f5c77424@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/8885587... WEB
https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a%40%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/8885587... WEB
https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a@%3Cdev.tomcat.apache.org%3E
lists.apache.org/thread.html/b1d7e24... WEB
https://lists.apache.org/thread.html/b1d7e2425d6fd2cebed40d318f9365b44546077e10949b01b1f8a0fb%40%3Cannounce.tomcat.apache.org%3E
Apache Tomcat Security Information SECURITY
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
Apache Tomcat Security Information SECURITY
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html

Frequently Asked Questions

What is CVE-2018-1304?
CVE-2018-1304 is a security vulnerability in Apache Tomcat involving Apache Tomcat unauthorized access vulnerability under General Security Weakness.
Which Apache Tomcat versions are affected?
Affected versions include releases prior to 9.0.5, 8.5.28, 8.0.51, 7.0.86 across affected packages: org.apache.tomcat.embed:tomcat-embed-core.
What version fixes CVE-2018-1304?
Upgrading to 9.0.5, 8.5.28, 8.0.51, 7.0.86 (or the latest patched release for your respective branch) resolves the vulnerability.
Is tomcat-embed-core affected?
Yes, org.apache.tomcat.embed:tomcat-embed-core is affected in releases prior to 9.0.5, 8.5.28, 8.0.51, 7.0.86. Upgrade your dependency to 9.0.5, 8.5.28, 8.0.51, 7.0.86 or later.
What is the CVSS score of CVE-2018-1304?
CVE-2018-1304 has a CVSS v3.1 base score of 5.9 (MODERATE) with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
What CWE is associated with CVE-2018-1304?
CVE-2018-1304 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2018-1304?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.tomcat.embed'. 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-6rxj-58jh-436r",
  "modified" : "2024-02-23T17:46:56Z",
  "published" : "2018-10-17T16:31:17Z",
  "aliases" : [ "CVE-2018-1304" ],
  "summary" : "Apache Tomcat unauthorized access vulnerability",
  "details" : "The URL pattern of \"\" (the empty string) which exactly maps to the context root was not correctly handled in Apache Tomcat 9.0.0.M1 to 9.0.4, 8.5.0 to 8.5.27, 8.0.0.RC1 to 8.0.49 and 7.0.0 to 7.0.84 when used as part of a security constraint definition. This caused the constraint to be ignored. It was, therefore, possible for unauthorised users to gain access to web application resources that should have been protected. Only security constraints with a URL pattern of the empty string were affected.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
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      "ecosystem" : "Maven",
      "name" : "org.apache.tomcat.embed:tomcat-embed-core"
    },
    "ranges" : [ {
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      }, {
        "fixed" : "9.0.5"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 9.0.4"
    }
  }, {
    "package" : {
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      "name" : "org.apache.tomcat.embed:tomcat-embed-core"
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    },
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      "name" : "org.apache.tomcat.embed:tomcat-embed-core"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "7.0.0"
      }, {
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      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-1304"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/tomcat80/commit/9e700b93e3bf5c605267d20568a964169f9e0b79"
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  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "MODERATE",
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    "github_reviewed_at" : "2020-06-16T21:20:10Z",
    "nvd_published_at" : "2018-02-28T20:29:00Z"
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}