CVE-2020-7744: Alphab Remote Code Execution Vulnerability

MODERATE
Advisory Identifier: GHSA-c6p9-24rc-jr5h
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CVSS 4.7
CWE-319
Published
Advisory Summary

CVE-2020-7744 is a MODERATE (CVSS 4.7) remote code execution vulnerability (CWE-319: Cleartext Transmission of Sensitive Information) affecting Alphab libraries in the Maven ecosystem. The issue involves remote code execution and download tracking in mintegral sdk. Remediation is available in the latest vendor maintenance releases.

CVE-2020-7744 at a Glance

CVE Identifier CVE-2020-7744
GHSA Identifier GHSA-c6p9-24rc-jr5h
Severity MODERATE
CVSS v3.1 Base Score 4.7
CWE Classification CWE-319: Cleartext Transmission of Sensitive Information
Affected Product Alphab
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 4.7

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

How to Fix CVE-2020-7744

To remediate this vulnerability, upgrade all affected Alphab 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.mintegral.msdk:alphab fixed: Latest secure release 
<dependency>
    <groupId>com.mintegral.msdk</groupId>
    <artifactId>alphab</artifactId>
    <version>Latest secure release</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.mintegral.msdk

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2020-7744, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=com.mintegral.msdk

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

Note: The mvn dependency:tree -Dincludes=com.mintegral.msdk 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-319: Cleartext Transmission of Sensitive Information, where the product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. In Alphab, 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

"This affects all versions of package com.mintegral.msdk:alphab. The Android SDK distributed by the company contains malicious functionality in this module that tracks: 1. Downloads from Google urls either within Google apps or via browser including file downloads, e-mail attachments and Google Docs links. 2. All apk downloads, either organic or not. Mintegral listens to download events in Android's download manager and detects if the downloaded file's url contains: a. google.com or comes from a Google app (the com.android.vending package) b. Ends with .apk for apk downloads In both cases, the module sends the captured data back to Mintegral's servers. Note that the malicious functionality keeps running even if the app is currently not in focus (running in the background)."

CVE-2020-7744 Affected Alphab Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
com.mintegral.msdk:alphab
maven/com.mintegral.msdk/alphab
Maven
≤ 14.6.01

References

NVD — CVE-2020-7744 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-7744
snyk.io/blog/remote-code-ex... WEB
https://snyk.io/blog/remote-code-execution-rce-sourmint
snyk.io/research/sour-mint-... WEB
https://snyk.io/research/sour-mint-malicious-sdk
snyk.io/vuln/snyk-java-comm... WEB
https://snyk.io/vuln/SNYK-JAVA-COMMINTEGRALMSDK-1018714

Frequently Asked Questions

What is CVE-2020-7744?
CVE-2020-7744 is a security vulnerability in Alphab involving Remote Code Execution and download tracking in Mintegral SDK under CWE-319: Cleartext Transmission of Sensitive Information.
Which Alphab versions are affected?
Affected versions include releases prior to current release patches across affected packages: com.mintegral.msdk:alphab.
What version fixes CVE-2020-7744?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is alphab affected?
Yes, com.mintegral.msdk:alphab is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2020-7744?
CVE-2020-7744 has a CVSS v3.1 base score of 4.7 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N.
What CWE is associated with CVE-2020-7744?
CVE-2020-7744 is classified under CWE-319: Cleartext Transmission of Sensitive Information (The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.).
How can I check Maven dependencies for CVE-2020-7744?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=com.mintegral.msdk'. 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-c6p9-24rc-jr5h",
  "modified" : "2021-04-21T19:02:43Z",
  "published" : "2021-04-22T16:15:15Z",
  "aliases" : [ "CVE-2020-7744" ],
  "summary" : "Remote Code Execution and download tracking in Mintegral SDK",
  "details" : "\"This affects all versions of package com.mintegral.msdk:alphab. The Android SDK distributed by the company contains malicious functionality in this module that tracks: 1. Downloads from Google urls either within Google apps or via browser including file downloads, e-mail attachments and Google Docs links. 2. All apk downloads, either organic or not. Mintegral listens to download events in Android's download manager and detects if the downloaded file's url contains: a. google.com or comes from a Google app (the com.android.vending package) b. Ends with .apk for apk downloads In both cases, the module sends the captured data back to Mintegral's servers. Note that the malicious functionality keeps running even if the app is currently not in focus (running in the background).\"",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.mintegral.msdk:alphab"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "14.6.01"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-7744"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/blog/remote-code-execution-rce-sourmint"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/research/sour-mint-malicious-sdk"
  }, {
    "type" : "WEB",
    "url" : "https://snyk.io/vuln/SNYK-JAVA-COMMINTEGRALMSDK-1018714"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-319" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-04-21T19:02:43Z",
    "nvd_published_at" : "2020-10-15T13:15:00Z"
  }
}