CVE-2023-29689: Pyrocms/pyrocms Remote Code Execution Vulnerability

CRITICAL
Advisory Identifier: GHSA-w7vm-4v3j-vgpw
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CVSS 9.8
Published
Advisory Summary

CVE-2023-29689 is a CRITICAL (CVSS 9.8) remote code execution vulnerability (General Security Weakness) affecting Pyrocms/pyrocms libraries in the Packagist ecosystem. The issue involves pyrocms remote code execution vulnerability. Remediation is available in the latest vendor maintenance releases.

CVE-2023-29689 at a Glance

CVE Identifier CVE-2023-29689
GHSA Identifier GHSA-w7vm-4v3j-vgpw
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification General Security Weakness
Affected Product Pyrocms/pyrocms
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 9.8

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

How to Fix CVE-2023-29689

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

pyrocms/pyrocms fixed: Latest secure release 
Upgrade pyrocms/pyrocms 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 pyrocms/pyrocms

How to Check if You Are Affected

To determine whether your application is affected by CVE-2023-29689, inspect your project dependencies for Pyrocms/pyrocms:

inspect dependencies for pyrocms/pyrocms

Analyze the terminal output to locate any version of Pyrocms/pyrocms 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 General Security Weakness. In Pyrocms/pyrocms, 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

PyroCMS 3.9 contains a remote code execution (RCE) vulnerability that can be exploited through a server-side template injection (SSTI) flaw. This vulnerability allows a malicious attacker to send customized commands to the server and execute arbitrary code on the affected system.

CVE-2023-29689 Affected Pyrocms/pyrocms Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
pyrocms/pyrocms
 Packagist
≤ 3.9

References

NVD — CVE-2023-29689 NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-29689
cupc4k3.lol/ssti-leads-to-rce-o... WEB
https://cupc4k3.lol/ssti-leads-to-rce-on-pyrocms-7515be27c811
Pyrocms/pyrocms Source Repository REPOSITORY
https://github.com/pyrocms/pyrocms
Pyrocms/pyrocms Security Information SECURITY
http://packetstormsecurity.com/files/174088/Pyro-CMS-3.9-Server-Side-Template-Injection.html

Frequently Asked Questions

What is CVE-2023-29689?
CVE-2023-29689 is a security vulnerability in Pyrocms/pyrocms involving PyroCMS remote code execution vulnerability under General Security Weakness.
Which Pyrocms/pyrocms versions are affected?
Affected versions include releases prior to current release patches across affected packages: pyrocms/pyrocms.
What version fixes CVE-2023-29689?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is pyrocms/pyrocms affected?
Yes, pyrocms/pyrocms 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-2023-29689?
CVE-2023-29689 has a CVSS v3.1 base score of 9.8 (CRITICAL) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2023-29689?
CVE-2023-29689 is classified under General Security Weakness.
How can I check Packagist dependencies for CVE-2023-29689?
Run the dependency tree command: 'inspect dependencies for pyrocms/pyrocms'. 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-w7vm-4v3j-vgpw",
  "modified" : "2023-08-09T20:36:37Z",
  "published" : "2023-08-04T15:30:15Z",
  "aliases" : [ "CVE-2023-29689" ],
  "summary" : "PyroCMS remote code execution vulnerability",
  "details" : "PyroCMS 3.9 contains a remote code execution (RCE) vulnerability that can be exploited through a server-side template injection (SSTI) flaw. This vulnerability allows a malicious attacker to send customized commands to the server and execute arbitrary code on the affected system.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "pyrocms/pyrocms"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "3.9"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-29689"
  }, {
    "type" : "WEB",
    "url" : "https://cupc4k3.lol/ssti-leads-to-rce-on-pyrocms-7515be27c811"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/pyrocms/pyrocms"
  }, {
    "type" : "WEB",
    "url" : "http://packetstormsecurity.com/files/174088/Pyro-CMS-3.9-Server-Side-Template-Injection.html"
  } ],
  "database_specific" : {
    "cwe_ids" : [ ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-08-04T17:27:09Z",
    "nvd_published_at" : "2023-08-04T15:15:10Z"
  }
}