CVE-2020-26248: Prestashop/productcomments SQL Injection Vulnerability

LOW
Advisory Identifier: GHSA-5v44-7647-xfw9
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CVSS 8.2
CWE-89
Published
Advisory Summary

CVE-2020-26248 is a LOW (CVSS 8.2) sql injection vulnerability (CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')) affecting Prestashop/productcomments libraries in the Packagist ecosystem. The issue involves blind sql injection in prestashop productcomments module. Remediation is available by upgrading affected packages to version 4.2.1.

CVE-2020-26248 at a Glance

CVE Identifier CVE-2020-26248
GHSA Identifier GHSA-5v44-7647-xfw9
Severity LOW
CVSS v3.1 Base Score 8.2
CWE Classification CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Affected Product Prestashop/productcomments
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 8.2

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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 Low (C:L)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2020-26248

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

prestashop/productcomments fixed: 4.2.1 
Upgrade prestashop/productcomments to 4.2.1
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 prestashop/productcomments

How to Check if You Are Affected

To determine whether your application is affected by CVE-2020-26248, inspect your project dependencies for Prestashop/productcomments:

inspect dependencies for prestashop/productcomments

Analyze the terminal output to locate any version of Prestashop/productcomments in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.2.1), 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 Prestashop/productcomments, 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 An attacker can use a Blind SQL injection to retrieve data or stop the MySQL service. ### Patches The problem is fixed in 4.2.1

CVE-2020-26248 Affected Prestashop/productcomments Versions

1 component(s)
Fixed Versions:
4.2.1
Product / Package Ecosystem Affected Versions Fixed Version
prestashop/productcomments
 Packagist
≥ 4.0.0
< 4.2.1
4.2.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/PrestaShop/productcomments/security/advisories/GHSA-5v44-7647-xfw9
NVD — CVE-2020-26248 NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-26248
Security Fix Commit FIX COMMIT
https://github.com/PrestaShop/productcomments/commit/7c2033dd811744e021da8897c80d6c301cd45ffa
Prestashop/productcomments Source Repository REPOSITORY
https://github.com/PrestaShop/productcomments
Prestashop/productcomments Release RELEASE
https://github.com/PrestaShop/productcomments/releases/tag/v4.2.1
packagist.org/packages/prestashop... WEB
https://packagist.org/packages/prestashop/productcomments
Prestashop/productcomments Security Information SECURITY
http://packetstormsecurity.com/files/160539/PrestaShop-ProductComments-4.2.0-SQL-Injection.html

Frequently Asked Questions

What is CVE-2020-26248?
CVE-2020-26248 is a security vulnerability in Prestashop/productcomments involving Blind SQL injection in PrestaShop productcomments module under CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection').
Which Prestashop/productcomments versions are affected?
Affected versions include releases prior to 4.2.1 across affected packages: prestashop/productcomments.
What version fixes CVE-2020-26248?
Upgrading to 4.2.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is prestashop/productcomments affected?
Yes, prestashop/productcomments is affected in releases prior to 4.2.1. Upgrade your dependency to 4.2.1 or later.
What is the CVSS score of CVE-2020-26248?
CVE-2020-26248 has a CVSS v3.1 base score of 8.2 (LOW) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H.
What CWE is associated with CVE-2020-26248?
CVE-2020-26248 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-2020-26248?
Run the dependency tree command: 'inspect dependencies for prestashop/productcomments'. 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-5v44-7647-xfw9",
  "modified" : "2022-01-07T16:07:46Z",
  "published" : "2021-01-20T21:33:53Z",
  "aliases" : [ "CVE-2020-26248" ],
  "summary" : "Blind SQL injection in PrestaShop productcomments module",
  "details" : "### Impact\nAn attacker can use a Blind SQL injection to retrieve data or stop the MySQL service.\n\n### Patches\nThe problem is fixed in 4.2.1",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "prestashop/productcomments"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "4.0.0"
      }, {
        "fixed" : "4.2.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShop/productcomments/security/advisories/GHSA-5v44-7647-xfw9"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2020-26248"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShop/productcomments/commit/7c2033dd811744e021da8897c80d6c301cd45ffa"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/PrestaShop/productcomments"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/PrestaShop/productcomments/releases/tag/v4.2.1"
  }, {
    "type" : "WEB",
    "url" : "https://packagist.org/packages/prestashop/productcomments"
  }, {
    "type" : "WEB",
    "url" : "http://packetstormsecurity.com/files/160539/PrestaShop-ProductComments-4.2.0-SQL-Injection.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-89" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-01-20T21:33:26Z",
    "nvd_published_at" : "2020-12-03T21:15:00Z"
  }
}