CVE-2021-39165: Cachethq/cachet SQL Injection Vulnerability

HIGH
Advisory Identifier: GHSA-79mg-4w23-4fqc
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CVSS 8.1
CWE-89 CWE-287
Published
Advisory Summary

CVE-2021-39165 is a HIGH (CVSS 8.1) sql injection vulnerability (CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')) affecting Cachethq/cachet libraries in the Packagist ecosystem. The issue involves unauthenticated sql injection in cachet. Remediation is available in the latest vendor maintenance releases.

CVE-2021-39165 at a Glance

CVE Identifier CVE-2021-39165
GHSA Identifier GHSA-79mg-4w23-4fqc
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected Product Cachethq/cachet
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.1

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

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

How to Fix CVE-2021-39165

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

cachethq/cachet fixed: Latest secure release 
Upgrade cachethq/cachet to Latest secure release
Verify Direct and Transitive Dependencies

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

inspect dependencies for cachethq/cachet

How to Check if You Are Affected

To determine whether your application is affected by CVE-2021-39165, inspect your project dependencies for Cachethq/cachet:

inspect dependencies for cachethq/cachet

Analyze the terminal output to locate any version of Cachethq/cachet 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: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), where the product constructs all or part of an sql command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended sql command when it is sent to a downstream component. without sufficient removal or quoting of sql syntax in user-controllable inputs, the generated sql query can cause those inputs to be interpreted as sql instead of ordinary user data. In Cachethq/cachet, 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

### Impact In Cachet versions through 2.3.18, there is a SQL injection which is in the `SearchableTrait#scopeSearch()`. Attackers without authentication can utilize this vulnerability to exfiltrate sensitive data from the database such as administrator's password and session. ### Patches The original repository of [https://github.com/CachetHQ/Cachet](https://github.com/CachetHQ/Cachet) is not active, the stable version 2.3.18 and it's developing 2.4 branch is affected. Update to version 2.5 or later in the [https://github.com/fiveai/Cachet fork](https://github.com/fiveai/Cachet) to fix this vulnerability.

CVE-2021-39165 Affected Cachethq/cachet Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
cachethq/cachet
 Packagist
≤ 2.3.18

References

GitHub Advisory / Wiki ADVISORY
https://github.com/fiveai/Cachet/security/advisories/GHSA-79mg-4w23-4fqc
NVD — CVE-2021-39165 NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-39165
Security Fix Commit FIX COMMIT
https://github.com/fiveai/Cachet/commit/27bca8280419966ba80c6fa283d985ddffa84bb6

Frequently Asked Questions

What is CVE-2021-39165?
CVE-2021-39165 is a security vulnerability in Cachethq/cachet involving Unauthenticated SQL Injection in Cachet under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection').
Which Cachethq/cachet versions are affected?
Affected versions include releases prior to current release patches across affected packages: cachethq/cachet.
What version fixes CVE-2021-39165?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is cachethq/cachet affected?
Yes, cachethq/cachet 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-2021-39165?
CVE-2021-39165 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2021-39165?
CVE-2021-39165 is classified under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') (The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.).
How can I check Packagist dependencies for CVE-2021-39165?
Run the dependency tree command: 'inspect dependencies for cachethq/cachet'. 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-79mg-4w23-4fqc",
  "modified" : "2021-08-27T12:54:52Z",
  "published" : "2021-08-30T16:12:58Z",
  "aliases" : [ "CVE-2021-39165" ],
  "summary" : "Unauthenticated SQL Injection in Cachet",
  "details" : "### Impact\nIn Cachet versions through 2.3.18, there is a SQL injection which is in the `SearchableTrait#scopeSearch()`. Attackers without authentication can utilize this vulnerability to exfiltrate sensitive data from the database such as administrator's password and session.\n\n### Patches\n\nThe original repository of [https://github.com/CachetHQ/Cachet](https://github.com/CachetHQ/Cachet) is not active, the stable version 2.3.18 and it's developing 2.4 branch is affected. \n\nUpdate to version 2.5 or later in the [https://github.com/fiveai/Cachet fork](https://github.com/fiveai/Cachet) to fix this vulnerability.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "cachethq/cachet"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "2.3.18"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/fiveai/Cachet/security/advisories/GHSA-79mg-4w23-4fqc"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2021-39165"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/fiveai/Cachet/commit/27bca8280419966ba80c6fa283d985ddffa84bb6"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-287", "CWE-89" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-08-26T20:21:00Z",
    "nvd_published_at" : "2021-08-26T21:15:00Z"
  }
}