CVE-2020-2127: Bmc rpd Credential Stored Vulnerability

LOW
Advisory Identifier: GHSA-2j3r-x6xc-qqqj
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CVSS 3.3
CWE-522 CWE-256
Published
Advisory Summary

CVE-2020-2127 is a LOW (CVSS 3.3) credential stored vulnerability (CWE-522: Insufficiently Protected Credentials) affecting Bmc rpd libraries in the Maven ecosystem. The issue involves credential stored in plain text by bmc release package and deployment plugin. Remediation is available in the latest vendor maintenance releases.

CVE-2020-2127 at a Glance

CVE Identifier CVE-2020-2127
GHSA Identifier GHSA-2j3r-x6xc-qqqj
Severity LOW
CVSS v3.1 Base Score 3.3
CWE Classification CWE-522: Insufficiently Protected Credentials
Affected Product Bmc rpd
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 3.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N).

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

How to Fix CVE-2020-2127

To remediate this vulnerability, upgrade all affected Bmc rpd dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

RPD:bmc-rpd fixed: Latest secure release 
<dependency>
    <groupId>RPD</groupId>
    <artifactId>bmc-rpd</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=RPD

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2020-2127, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=RPD

Analyze the terminal output to locate any version of Bmc rpd 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=RPD 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-522: Insufficiently Protected Credentials, where the product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. In Bmc rpd, 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

Jenkins BMC Release Package and Deployment Plugin 1.1 and earlier stores credentials unencrypted in its global configuration file on the Jenkins master where they can be viewed by users with access to the master file system. As of publication of this advisory, there is no fix.

CVE-2020-2127 Affected Bmc rpd Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
RPD:bmc-rpd
maven/RPD/bmc-rpd
Maven
≤ 1.1

References

NVD — CVE-2020-2127 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-2127
Bmc rpd Source Repository REPOSITORY
https://github.com/jenkinsci/bmc-rpd-plugin
Bmc rpd Security Information SECURITY
https://jenkins.io/security/advisory/2020-02-12/#SECURITY-1547
Bmc rpd Security Information SECURITY
http://www.openwall.com/lists/oss-security/2020/02/12/3

Frequently Asked Questions

What is CVE-2020-2127?
CVE-2020-2127 is a security vulnerability in Bmc rpd involving Credential stored in plain text by BMC Release Package and Deployment Plugin under CWE-522: Insufficiently Protected Credentials.
Which Bmc rpd versions are affected?
Affected versions include releases prior to current release patches across affected packages: RPD:bmc-rpd.
What version fixes CVE-2020-2127?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is bmc-rpd affected?
Yes, RPD:bmc-rpd 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-2020-2127?
CVE-2020-2127 has a CVSS v3.1 base score of 3.3 (LOW) with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2020-2127?
CVE-2020-2127 is classified under CWE-522: Insufficiently Protected Credentials (The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.).
How can I check Maven dependencies for CVE-2020-2127?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=RPD'. 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-2j3r-x6xc-qqqj",
  "modified" : "2023-01-09T19:46:20Z",
  "published" : "2022-05-24T17:08:47Z",
  "aliases" : [ "CVE-2020-2127" ],
  "summary" : "Credential stored in plain text by BMC Release Package and Deployment Plugin",
  "details" : "Jenkins BMC Release Package and Deployment Plugin 1.1 and earlier stores credentials unencrypted in its global configuration file on the Jenkins master where they can be viewed by users with access to the master file system. As of publication of this advisory, there is no fix.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "RPD:bmc-rpd"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-2127"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/jenkinsci/bmc-rpd-plugin"
  }, {
    "type" : "WEB",
    "url" : "https://jenkins.io/security/advisory/2020-02-12/#SECURITY-1547"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2020/02/12/3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-256", "CWE-522" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-01-09T19:46:20Z",
    "nvd_published_at" : "2020-02-12T15:15:00Z"
  }
}