CVE-2022-27177: Consoleme Use Of Externally-Controlled Format String Vulnerability

CRITICAL
Advisory Identifier: GHSA-74w3-2r77-fw5h
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CVSS 9.8
CWE-134
Published
Advisory Summary

CVE-2022-27177 is a CRITICAL (CVSS 9.8) use of externally-controlled format string vulnerability (CWE-134: Use of Externally-Controlled Format String) affecting Consoleme libraries in the PyPI ecosystem. The issue involves use of externally-controlled format string in consoleme. Remediation is available by upgrading affected packages to version 1.2.2.

CVE-2022-27177 at a Glance

CVE Identifier CVE-2022-27177
GHSA Identifier GHSA-74w3-2r77-fw5h
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-134: Use of Externally-Controlled Format String
Affected Product Consoleme
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 9.8

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:N/S:U/C:H/I:H/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 High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2022-27177

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

consoleme fixed: 1.2.2 
pip install consoleme>=1.2.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show consoleme

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2022-27177, inspect your installed packages using pip:

pip show consoleme

Analyze the terminal output to locate any version of Consoleme in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.2.2), your application is affected.

Note: The pip show consoleme command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-134: Use of Externally-Controlled Format String, where the product uses a function that accepts a format string as an argument, but the format string originates from an external source. In Consoleme, 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

A Python format string issue leading to information disclosure and potentially remote code execution in ConsoleMe for all versions prior to 1.2.2

CVE-2022-27177 Affected Consoleme Versions

1 component(s)
Fixed Versions:
1.2.2
Product / Package Ecosystem Affected Versions Fixed Version
consoleme
pypi/consoleme
PyPI
< 1.2.2
1.2.2

References

NVD — CVE-2022-27177 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-27177
Security Fix Commit FIX COMMIT
https://github.com/Netflix/consoleme/commit/2a3c84eee524d77c427b3329a8419cbbce9e1d16
Consoleme Source Repository REPOSITORY
https://github.com/Netflix/ConsoleMe
GitHub Advisory / Wiki ADVISORY
https://github.com/Netflix/security-bulletins/blob/master/advisories/nflx-2022-001.md
Consoleme Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/consoleme/PYSEC-2022-189.yaml

Frequently Asked Questions

What is CVE-2022-27177?
CVE-2022-27177 is a security vulnerability in Consoleme involving Use of Externally-Controlled Format String in consoleme under CWE-134: Use of Externally-Controlled Format String.
Which Consoleme versions are affected?
Affected versions include releases prior to 1.2.2 across affected packages: consoleme.
What version fixes CVE-2022-27177?
Upgrading to 1.2.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is consoleme affected?
Yes, consoleme is affected in releases prior to 1.2.2. Upgrade your dependency to 1.2.2 or later.
What is the CVSS score of CVE-2022-27177?
CVE-2022-27177 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2022-27177?
CVE-2022-27177 is classified under CWE-134: Use of Externally-Controlled Format String (The product uses a function that accepts a format string as an argument, but the format string originates from an external source.).
How can I check PyPI dependencies for CVE-2022-27177?
Run the dependency tree command: 'pip show consoleme'. 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-74w3-2r77-fw5h",
  "modified" : "2022-04-18T22:21:17Z",
  "published" : "2022-04-03T00:00:58Z",
  "aliases" : [ "CVE-2022-27177" ],
  "summary" : "Use of Externally-Controlled Format String in consoleme",
  "details" : "A Python format string issue leading to information disclosure and potentially remote code execution in ConsoleMe for all versions prior to 1.2.2",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "consoleme"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.2.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-27177"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Netflix/consoleme/commit/2a3c84eee524d77c427b3329a8419cbbce9e1d16"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Netflix/ConsoleMe"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Netflix/security-bulletins/blob/master/advisories/nflx-2022-001.md"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/consoleme/PYSEC-2022-189.yaml"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-134" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-04-05T17:54:33Z",
    "nvd_published_at" : "2022-04-01T23:15:00Z"
  }
}