CVE-2017-4960: Cloudfoundry identity server Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-hxgw-7539-pv7r
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CVSS 7.5
Published
Advisory Summary

CVE-2017-4960 is a HIGH (CVSS 7.5) denial of service vulnerability (General Security Weakness) affecting Cloudfoundry identity server libraries in the Maven ecosystem. The issue involves cloud foundry denial of service vulnerability. Remediation is available by upgrading affected packages to version 3.12.0, 3.9.8.

CVE-2017-4960 at a Glance

CVE Identifier CVE-2017-4960
GHSA Identifier GHSA-hxgw-7539-pv7r
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification General Security Weakness
Affected Product Cloudfoundry identity server
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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2017-4960

To remediate this vulnerability, upgrade all affected Cloudfoundry identity 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.cloudfoundry.identity:cloudfoundry-identity-server fixed: 3.12.0 
<dependency>
    <groupId>org.cloudfoundry.identity</groupId>
    <artifactId>cloudfoundry-identity-server</artifactId>
    <version>3.12.0</version>
</dependency>
org.cloudfoundry.identity:cloudfoundry-identity-server fixed: 3.9.8 
<dependency>
    <groupId>org.cloudfoundry.identity</groupId>
    <artifactId>cloudfoundry-identity-server</artifactId>
    <version>3.9.8</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.cloudfoundry.identity

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2017-4960, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.cloudfoundry.identity

Analyze the terminal output to locate any version of Cloudfoundry identity server in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.12.0), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.cloudfoundry.identity 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 Cloudfoundry identity 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

An issue was discovered in Cloud Foundry release v247 through v252, UAA stand-alone release v3.9.0 through v3.11.0, and UAA Bosh Release v21 through v26. There is a potential to subject the UAA OAuth clients to a denial of service attack.

CVE-2017-4960 Affected Cloudfoundry identity server Versions

2 component(s)
Fixed Versions:
3.12.03.9.8
Product / Package Ecosystem Affected Versions Fixed Version
org.cloudfoundry.identity:cloudfoundry-identity-server
maven/org.cloudfoundry.identity/cloudfoundry-identity-server
Maven
≥ 3.10.0
< 3.12.0
3.12.0
org.cloudfoundry.identity:cloudfoundry-identity-server
maven/org.cloudfoundry.identity/cloudfoundry-identity-server
Maven
< 3.9.8
3.9.8

References

NVD — CVE-2017-4960 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-4960
Security Fix Commit FIX COMMIT
https://github.com/cloudfoundry/uaa/commit/17a0b86afe1fbd4ed8819267906afa3f76a8dfdc
Security Fix Commit FIX COMMIT
https://github.com/cloudfoundry/uaa/commit/5eab756eaf4bb397302f00fbd0273f2470009d38
Security Fix Commit FIX COMMIT
https://github.com/cloudfoundry/uaa/commit/78731f8aa37a53385d0194821a5356ab66e2138
Cloudfoundry identity server Source Repository REPOSITORY
https://github.com/cloudfoundry/uaa
Cloudfoundry identity server Security Information SECURITY
https://web.archive.org/web/20200227185243/http://www.securityfocus.com/bid/96780
www.cloudfoundry.org/cve-2017-4960 WEB
https://www.cloudfoundry.org/cve-2017-4960

Frequently Asked Questions

What is CVE-2017-4960?
CVE-2017-4960 is a security vulnerability in Cloudfoundry identity server involving Cloud Foundry denial of service vulnerability under General Security Weakness.
Which Cloudfoundry identity server versions are affected?
Affected versions include releases prior to 3.12.0, 3.9.8 across affected packages: org.cloudfoundry.identity:cloudfoundry-identity-server.
What version fixes CVE-2017-4960?
Upgrading to 3.12.0, 3.9.8 (or the latest patched release for your respective branch) resolves the vulnerability.
Is cloudfoundry-identity-server affected?
Yes, org.cloudfoundry.identity:cloudfoundry-identity-server is affected in releases prior to 3.12.0, 3.9.8. Upgrade your dependency to 3.12.0, 3.9.8 or later.
What is the CVSS score of CVE-2017-4960?
CVE-2017-4960 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2017-4960?
CVE-2017-4960 is classified under General Security Weakness.
How can I check Maven dependencies for CVE-2017-4960?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.cloudfoundry.identity'. 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-hxgw-7539-pv7r",
  "modified" : "2024-02-29T00:01:27Z",
  "published" : "2022-05-13T01:07:24Z",
  "aliases" : [ "CVE-2017-4960" ],
  "summary" : "Cloud Foundry denial of service vulnerability",
  "details" : "An issue was discovered in Cloud Foundry release v247 through v252, UAA stand-alone release v3.9.0 through v3.11.0, and UAA Bosh Release v21 through v26. There is a potential to subject the UAA OAuth clients to a denial of service attack.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.cloudfoundry.identity:cloudfoundry-identity-server"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.10.0"
      }, {
        "fixed" : "3.12.0"
      } ]
    } ]
  }, {
    "package" : {
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    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "3.9.8"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-4960"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cloudfoundry/uaa/commit/17a0b86afe1fbd4ed8819267906afa3f76a8dfdc"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cloudfoundry/uaa/commit/5eab756eaf4bb397302f00fbd0273f2470009d38"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/cloudfoundry/uaa/commit/78731f8aa37a53385d0194821a5356ab66e2138"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/cloudfoundry/uaa"
  }, {
    "type" : "WEB",
    "url" : "https://web.archive.org/web/20200227185243/http://www.securityfocus.com/bid/96780"
  }, {
    "type" : "WEB",
    "url" : "https://www.cloudfoundry.org/cve-2017-4960"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-02-29T00:01:26Z",
    "nvd_published_at" : "2017-03-10T01:59:00Z"
  }
}