CVE-2023-26145: Pydash Pydash Command Injection Vulnerability Vulnerability

CRITICAL
Advisory Identifier: GHSA-8mjr-6c96-39w8
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CVSS 7.4
CWE-77
Published
Advisory Summary

CVE-2023-26145 is a CRITICAL (CVSS 7.4) pydash command injection vulnerability vulnerability (CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')) affecting Pydash libraries in the PyPI ecosystem. The issue involves pydash command injection vulnerability. Remediation is available by upgrading affected packages to version 6.0.0.

CVE-2023-26145 at a Glance

CVE Identifier CVE-2023-26145
GHSA Identifier GHSA-8mjr-6c96-39w8
Severity CRITICAL
CVSS v3.1 Base Score 7.4
CWE Classification CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
Affected Product Pydash
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.4

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

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 None (A:N)

How to Fix CVE-2023-26145

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

pydash fixed: 6.0.0 
pip install pydash>=6.0.0
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 pydash

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2023-26145, inspect your installed packages using pip:

pip show pydash

Analyze the terminal output to locate any version of Pydash in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 6.0.0), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection'), where the product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component. In Pydash, 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

This affects versions of the package pydash before 6.0.0. A number of pydash methods such as pydash.objects.invoke() and pydash.collections.invoke_map() accept dotted paths (Deep Path Strings) to target a nested Python object, relative to the original source object. These paths can be used to target internal class attributes and dict items, to retrieve, modify or invoke nested Python objects. **Note:** The pydash.objects.invoke() method is vulnerable to Command Injection when the following prerequisites are satisfied: 1) The source object (argument 1) is not a built-in object such as list/dict (otherwise, the __init__.__globals__ path is not accessible) 2) The attacker has control over argument 2 (the path string) and argument 3 (the argument to pass to the invoked method) The pydash.collections.invoke_map() method is also vulnerable, but is harder to exploit as the attacker does not have direct control over the argument to be passed to the invoked function.

CVE-2023-26145 Affected Pydash Versions

1 component(s)
Fixed Versions:
6.0.0
Product / Package Ecosystem Affected Versions Fixed Version
pydash
pypi/pydash
PyPI
< 6.0.0
6.0.0

References

NVD — CVE-2023-26145 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-26145
Security Fix Commit FIX COMMIT
https://github.com/dgilland/pydash/commit/6ff0831ad285fff937cafd2a853f20cc9ae92021
Pydash Source Repository REPOSITORY
https://gist.github.com/CalumHutton/45d33e9ea55bf4953b3b31c84703dfca
Pydash Source Repository REPOSITORY
https://github.com/dgilland/pydash
Pydash Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/pydash/PYSEC-2023-179.yaml
Pydash Security Information SECURITY
https://security.snyk.io/vuln/SNYK-PYTHON-PYDASH-5916518

Frequently Asked Questions

What is CVE-2023-26145?
CVE-2023-26145 is a security vulnerability in Pydash involving pydash Command Injection vulnerability under CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection').
Which Pydash versions are affected?
Affected versions include releases prior to 6.0.0 across affected packages: pydash.
What version fixes CVE-2023-26145?
Upgrading to 6.0.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is pydash affected?
Yes, pydash is affected in releases prior to 6.0.0. Upgrade your dependency to 6.0.0 or later.
What is the CVSS score of CVE-2023-26145?
CVE-2023-26145 has a CVSS v3.1 base score of 7.4 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.
What CWE is associated with CVE-2023-26145?
CVE-2023-26145 is classified under CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') (The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.).
How can I check PyPI dependencies for CVE-2023-26145?
Run the dependency tree command: 'pip show pydash'. 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-8mjr-6c96-39w8",
  "modified" : "2024-10-21T20:55:24Z",
  "published" : "2023-09-28T06:30:20Z",
  "aliases" : [ "CVE-2023-26145" ],
  "summary" : "pydash Command Injection vulnerability",
  "details" : "This affects versions of the package pydash before 6.0.0. A number of pydash methods such as pydash.objects.invoke() and pydash.collections.invoke_map() accept dotted paths (Deep Path Strings) to target a nested Python object, relative to the original source object. These paths can be used to target internal class attributes and dict items, to retrieve, modify or invoke nested Python objects.\n\n**Note:**\n\nThe pydash.objects.invoke() method is vulnerable to Command Injection when the following prerequisites are satisfied:\n\n1) The source object (argument 1) is not a built-in object such as list/dict (otherwise, the __init__.__globals__ path is not accessible)\n\n2) The attacker has control over argument 2 (the path string) and argument 3 (the argument to pass to the invoked method)\n\n\nThe pydash.collections.invoke_map() method is also vulnerable, but is harder to exploit as the attacker does not have direct control over the argument to be passed to the invoked function.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "pydash"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "6.0.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-26145"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/dgilland/pydash/commit/6ff0831ad285fff937cafd2a853f20cc9ae92021"
  }, {
    "type" : "WEB",
    "url" : "https://gist.github.com/CalumHutton/45d33e9ea55bf4953b3b31c84703dfca"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/dgilland/pydash"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/pydash/PYSEC-2023-179.yaml"
  }, {
    "type" : "WEB",
    "url" : "https://security.snyk.io/vuln/SNYK-PYTHON-PYDASH-5916518"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-77" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-09-28T16:42:16Z",
    "nvd_published_at" : "2023-09-28T05:15:45Z"
  }
}