CVE-2018-8074: Yiisoft/yii2 dev Yii Framework Code Injection Vulnerability

HIGH
Advisory Identifier: GHSA-m2p5-fwp2-qcw2
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CVSS 8.1
CWE-94
Published
Advisory Summary

CVE-2018-8074 is a HIGH (CVSS 8.1) yii framework code injection vulnerability (CWE-94: Improper Control of Generation of Code ('Code Injection')) affecting Yiisoft/yii2 dev libraries in the Packagist ecosystem. The issue involves yii framework code injection. Remediation is available by upgrading affected packages to version 2.0.15, 2.0.5.

CVE-2018-8074 at a Glance

CVE Identifier CVE-2018-8074
GHSA Identifier GHSA-m2p5-fwp2-qcw2
Severity HIGH
CVSS v3.1 Base Score 8.1
CWE Classification CWE-94: Improper Control of Generation of Code ('Code Injection')
Affected Product Yiisoft/yii2 dev
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:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
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-2018-8074

To remediate this vulnerability, upgrade all affected Yiisoft/yii2 dev dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

yiisoft/yii2-dev fixed: 2.0.15 
Upgrade yiisoft/yii2-dev to 2.0.15
yiisoft/yii2-elasticsearch fixed: 2.0.5 
Upgrade yiisoft/yii2-elasticsearch to 2.0.5
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 yiisoft/yii2-dev

How to Check if You Are Affected

To determine whether your application is affected by CVE-2018-8074, inspect your project dependencies for Yiisoft/yii2 dev:

inspect dependencies for yiisoft/yii2-dev

Analyze the terminal output to locate any version of Yiisoft/yii2 dev in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.0.15), 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-94: Improper Control of Generation of Code ('Code Injection'), where the product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. In Yiisoft/yii2 dev, 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

Yii 2.x before 2.0.15 allows remote attackers to inject unintended search conditions via a variant of the CVE-2018-7269 attack in conjunction with the Elasticsearch extension.

CVE-2018-8074 Affected Yiisoft/yii2 dev Versions

2 component(s)
Fixed Versions:
2.0.152.0.5
Product / Package Ecosystem Affected Versions Fixed Version
yiisoft/yii2-dev
 Packagist
≥ 2.0.0
< 2.0.15
2.0.15
yiisoft/yii2-elasticsearch
 Packagist
< 2.0.5
2.0.5

References

NVD — CVE-2018-8074 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-8074
Yiisoft/yii2 dev Source Repository REPOSITORY
https://github.com/FriendsOfPHP/security-advisories/blob/master/yiisoft/yii2-elasticsearch/CVE-2018-8074.yaml
Yiisoft/yii2 dev Source Repository REPOSITORY
https://github.com/yiisoft/yii2
Yiisoft/yii2 dev Security Information SECURITY
https://www.yiiframework.com/news/168/releasing-yii-2-0-15-and-database-extensions-with-security-fixes
Yiisoft/yii2 dev Security Information SECURITY
http://www.yiiframework.com/news/168/releasing-yii-2-0-15-and-database-extensions-with-security-fixes

Frequently Asked Questions

What is CVE-2018-8074?
CVE-2018-8074 is a security vulnerability in Yiisoft/yii2 dev involving Yii Framework Code Injection under CWE-94: Improper Control of Generation of Code ('Code Injection').
Which Yiisoft/yii2 dev versions are affected?
Affected versions include releases prior to 2.0.15, 2.0.5 across affected packages: yiisoft/yii2-dev, yiisoft/yii2-elasticsearch.
What version fixes CVE-2018-8074?
Upgrading to 2.0.15, 2.0.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is yiisoft/yii2-dev affected?
Yes, yiisoft/yii2-dev is affected in releases prior to 2.0.15. Upgrade your dependency to 2.0.15 or later.
Is yiisoft/yii2-elasticsearch affected?
Yes, yiisoft/yii2-elasticsearch is affected in releases prior to 2.0.5. Upgrade your dependency to 2.0.5 or later.
What is the CVSS score of CVE-2018-8074?
CVE-2018-8074 has a CVSS v3.1 base score of 8.1 (HIGH) with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2018-8074?
CVE-2018-8074 is classified under CWE-94: Improper Control of Generation of Code ('Code Injection') (The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.).
How can I check Packagist dependencies for CVE-2018-8074?
Run the dependency tree command: 'inspect dependencies for yiisoft/yii2-dev'. 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-m2p5-fwp2-qcw2",
  "modified" : "2023-10-05T18:47:11Z",
  "published" : "2022-05-24T16:56:44Z",
  "aliases" : [ "CVE-2018-8074" ],
  "summary" : "Yii Framework Code Injection",
  "details" : "Yii 2.x before 2.0.15 allows remote attackers to inject unintended search conditions via a variant of the CVE-2018-7269 attack in conjunction with the Elasticsearch extension.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "yiisoft/yii2-dev"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.0.0"
      }, {
        "fixed" : "2.0.15"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "yiisoft/yii2-elasticsearch"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.0.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-8074"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/FriendsOfPHP/security-advisories/blob/master/yiisoft/yii2-elasticsearch/CVE-2018-8074.yaml"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/yiisoft/yii2"
  }, {
    "type" : "WEB",
    "url" : "https://www.yiiframework.com/news/168/releasing-yii-2-0-15-and-database-extensions-with-security-fixes"
  }, {
    "type" : "WEB",
    "url" : "http://www.yiiframework.com/news/168/releasing-yii-2-0-15-and-database-extensions-with-security-fixes"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-94" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-07-20T00:09:22Z",
    "nvd_published_at" : null
  }
}