CVE-2017-18049: Silverstripe/framework SilverStripe CSV Excel Macro Injection Vulnerability

MODERATE
Advisory Identifier: GHSA-2jvj-mhf2-g99w
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CVSS 5.5
CWE-74
Published
Advisory Summary

CVE-2017-18049 is a MODERATE (CVSS 5.5) silverstripe csv excel macro injection vulnerability (CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')) affecting Silverstripe/framework libraries in the Packagist ecosystem. The issue involves silverstripe csv excel macro injection. Remediation is available by upgrading affected packages to version 3.5.6, 3.6.3, 4.0.1.

CVE-2017-18049 at a Glance

CVE Identifier CVE-2017-18049
GHSA Identifier GHSA-2jvj-mhf2-g99w
Severity MODERATE
CVSS v3.1 Base Score 5.5
CWE Classification CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Affected Product Silverstripe/framework
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 5.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N).

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

How to Fix CVE-2017-18049

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

silverstripe/framework fixed: 3.5.6 
Upgrade silverstripe/framework to 3.5.6
silverstripe/framework fixed: 3.6.3 
Upgrade silverstripe/framework to 3.6.3
silverstripe/framework fixed: 4.0.1 
Upgrade silverstripe/framework to 4.0.1
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 silverstripe/framework

How to Check if You Are Affected

To determine whether your application is affected by CVE-2017-18049, inspect your project dependencies for Silverstripe/framework:

inspect dependencies for silverstripe/framework

Analyze the terminal output to locate any version of Silverstripe/framework in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 3.5.6), 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-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'), where the product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. In Silverstripe/framework, 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

In the CSV export feature of SilverStripe before 3.5.6, 3.6.x before 3.6.3, and 4.x before 4.0.1, it's possible for the output to contain macros and scripts, which may be executed if imported without sanitization into common software (including Microsoft Excel). For example, the CSV data may contain untrusted user input from the "First Name" field of a user's /myprofile page.

CVE-2017-18049 Affected Silverstripe/framework Versions

3 component(s)
Fixed Versions:
3.5.63.6.34.0.1
Product / Package Ecosystem Affected Versions Fixed Version
silverstripe/framework
 Packagist
< 3.5.6
3.5.6
silverstripe/framework
 Packagist
≥ 3.6.0
< 3.6.3
3.6.3
silverstripe/framework
 Packagist
≥ 4.0.0
< 4.0.1
4.0.1

References

NVD — CVE-2017-18049 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-18049
Silverstripe/framework Source Repository REPOSITORY
https://github.com/silverstripe/silverstripe-framework
www.exploit-db.com/exploits/43396 WEB
https://www.exploit-db.com/exploits/43396
Silverstripe/framework Release RELEASE
https://www.silverstripe.org/download/security-releases/ss-2017-007

Frequently Asked Questions

What is CVE-2017-18049?
CVE-2017-18049 is a security vulnerability in Silverstripe/framework involving SilverStripe CSV Excel Macro Injection under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection').
Which Silverstripe/framework versions are affected?
Affected versions include releases prior to 3.5.6, 3.6.3, 4.0.1 across affected packages: silverstripe/framework.
What version fixes CVE-2017-18049?
Upgrading to 3.5.6, 3.6.3, 4.0.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is silverstripe/framework affected?
Yes, silverstripe/framework is affected in releases prior to 3.5.6, 3.6.3, 4.0.1. Upgrade your dependency to 3.5.6, 3.6.3, 4.0.1 or later.
What is the CVSS score of CVE-2017-18049?
CVE-2017-18049 has a CVSS v3.1 base score of 5.5 (MODERATE) with vector string CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.
What CWE is associated with CVE-2017-18049?
CVE-2017-18049 is classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.).
How can I check Packagist dependencies for CVE-2017-18049?
Run the dependency tree command: 'inspect dependencies for silverstripe/framework'. 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-2jvj-mhf2-g99w",
  "modified" : "2024-04-25T21:06:31Z",
  "published" : "2022-05-14T03:45:17Z",
  "aliases" : [ "CVE-2017-18049" ],
  "summary" : "SilverStripe CSV Excel Macro Injection",
  "details" : "In the CSV export feature of SilverStripe before 3.5.6, 3.6.x before 3.6.3, and 4.x before 4.0.1, it's possible for the output to contain macros and scripts, which may be executed if imported without sanitization into common software (including Microsoft Excel). For example, the CSV data may contain untrusted user input from the \"First Name\" field of a user's /myprofile page.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"
  } ],
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    "ranges" : [ {
      "type" : "ECOSYSTEM",
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      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-18049"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/silverstripe/silverstripe-framework"
  }, {
    "type" : "WEB",
    "url" : "https://www.exploit-db.com/exploits/43396"
  }, {
    "type" : "WEB",
    "url" : "https://www.silverstripe.org/download/security-releases/ss-2017-007"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-74" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-04-25T21:06:31Z",
    "nvd_published_at" : "2018-01-23T06:29:00Z"
  }
}