Vulnerabilities in pkg:maven/com.twitter/twitter-server_2.12

PACKAGE
Advisory Identifier: GHSA-3mqv-8gxg-pfm4
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Advisory Summary

CVE-2020-35774 is a MODERATE (CVSS 6.1) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Twitter server 2.12 libraries in the Maven ecosystem. The issue involves twitterserver cross-site scripting via /histograms endpoint. Remediation is available by upgrading affected packages to version 20.12.0.

1 Known Advisory Record(s)
Package Vulnerability Intelligence

pkg:maven/com.twitter/twitter-server_2.12

1 Known Advisory Record(s)

Vulnerability advisories affecting package pkg:maven/com.twitter/twitter-server_2.12. Select an advisory below to view technical details or fixes.

Advisory ID CVE / NVD Severity Summary
GHSA-3mqv-8gxg-pfm4 CVE-2020-35774 MODERATE TwitterServer Cross-site Scripting via /histograms endpoint

CVE-2020-35774 at a Glance

CVE Identifier CVE-2020-35774
GHSA Identifier GHSA-3mqv-8gxg-pfm4
Severity MODERATE
CVSS v3.1 Base Score 6.1
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Twitter server 2.12
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 6.1

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:R/S:C/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2020-35774

To remediate this vulnerability, upgrade all affected Twitter server 2.12 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.twitter:twitter-server_2.12 fixed: 20.12.0 
<dependency>
    <groupId>com.twitter</groupId>
    <artifactId>twitter-server_2.12</artifactId>
    <version>20.12.0</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.twitter

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2020-35774, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=com.twitter

Analyze the terminal output to locate any version of Twitter server 2.12 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 20.12.0), your application is affected.

Note: The mvn dependency:tree -Dincludes=com.twitter 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-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Twitter server 2.12, 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

server/handler/HistogramQueryHandler.scala in Twitter TwitterServer (aka twitter-server) before 20.12.0, in some configurations, allows XSS via the /histograms endpoint.

CVE-2020-35774 Affected Twitter server 2.12 Versions

1 component(s)
Fixed Versions:
20.12.0
Product / Package Ecosystem Affected Versions Fixed Version
com.twitter:twitter-server_2.12
maven/com.twitter/twitter-server_2.12
Maven
< 20.12.0
20.12.0

References

NVD — CVE-2020-35774 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-35774
Security Fix Commit FIX COMMIT
https://github.com/twitter/twitter-server/commit/e0aeb87e89a6e6c711214ee2de0dd9f6e5f9cb6c
advisory.checkmarx.net/advisory/cx-2020-42... WEB
https://advisory.checkmarx.net/advisory/CX-2020-4287
Twitter server 2.12 Source Repository REPOSITORY
https://github.com/twitter/twitter-server
Twitter server 2.12 Source Repository REPOSITORY
https://github.com/twitter/twitter-server/compare/twitter-server-20.10.0...twitter-server-20.12.0

Frequently Asked Questions

What is CVE-2020-35774?
CVE-2020-35774 is a security vulnerability in Twitter server 2.12 involving TwitterServer Cross-site Scripting via /histograms endpoint under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Twitter server 2.12 versions are affected?
Affected versions include releases prior to 20.12.0 across affected packages: com.twitter:twitter-server_2.12.
What version fixes CVE-2020-35774?
Upgrading to 20.12.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is twitter-server_2.12 affected?
Yes, com.twitter:twitter-server_2.12 is affected in releases prior to 20.12.0. Upgrade your dependency to 20.12.0 or later.
What is the CVSS score of CVE-2020-35774?
CVE-2020-35774 has a CVSS v3.1 base score of 6.1 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
What CWE is associated with CVE-2020-35774?
CVE-2020-35774 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Maven dependencies for CVE-2020-35774?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=com.twitter'. 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-3mqv-8gxg-pfm4",
  "modified" : "2022-07-21T15:35:27Z",
  "published" : "2022-02-09T22:37:28Z",
  "aliases" : [ "CVE-2020-35774" ],
  "summary" : "TwitterServer Cross-site Scripting via /histograms endpoint",
  "details" : "server/handler/HistogramQueryHandler.scala in Twitter TwitterServer (aka twitter-server) before 20.12.0, in some configurations, allows XSS via the /histograms endpoint.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.twitter:twitter-server_2.12"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "20.12.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-35774"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/twitter/twitter-server/commit/e0aeb87e89a6e6c711214ee2de0dd9f6e5f9cb6c"
  }, {
    "type" : "WEB",
    "url" : "https://advisory.checkmarx.net/advisory/CX-2020-4287"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/twitter/twitter-server"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/twitter/twitter-server/compare/twitter-server-20.10.0...twitter-server-20.12.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-04-07T22:16:49Z",
    "nvd_published_at" : "2020-12-29T18:15:00Z"
  }
}