GHSA-67cx-rhhq-mfhq: Indico High Severity Vulnerability That Affects Vulnerability

HIGH
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CWE-77
Published
Advisory Summary

GHSA-67cx-rhhq-mfhq is a HIGH high severity vulnerability that affects vulnerability (CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')) affecting Indico libraries in the PyPI ecosystem. The issue involves high severity vulnerability that affects indico. Remediation is available by upgrading affected packages to version 2.1.10, 2.2.3.

GHSA-67cx-rhhq-mfhq at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-67cx-rhhq-mfhq
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
Affected Product Indico
Package Ecosystem PyPI
Published Date
Last Updated

How to Fix GHSA-67cx-rhhq-mfhq

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

indico fixed: 2.1.10 
pip install indico>=2.1.10
indico fixed: 2.2.3 
pip install indico>=2.2.3
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 indico

How to Check if You Are Affected

To determine whether your Python environment is affected by GHSA-67cx-rhhq-mfhq, inspect your installed packages using pip:

pip show indico

Analyze the terminal output to locate any version of Indico in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.1.10), your application is affected.

Note: The pip show indico 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 Indico, 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

## Local file disclosure through LaTeX injection ### Impact An external audit of the Indico codebase has discovered a vulnerability in Indico's LaTeX sanitization code, which could have malicious users to run unsafe LaTeX commands on the server. Such commands allowed for example to read local files (e.g. `indico.conf`). As far as we know it is not possible to write files or execute code using this vulnerability. ### Patches You need to update to [Indico 2.2.3](https://github.com/indico/indico/releases/tag/v2.2.3) as soon as possible. We also released [Indico 2.1.10](https://github.com/indico/indico/releases/tag/v2.1.10) in case you cannot update to 2.2 for some reason. See https://docs.getindico.io/en/stable/installation/upgrade/ for instructions on how to update. ### Workarounds Setting `XELATEX_PATH = None` in `indico.conf` will result in an error when building a PDF, but without being able to run xelatex, the vulnerability cannot be abused. ### For more information If you have any questions or comments about this advisory: * Open a thread in [our forum](https://talk.getindico.io/) * Email us privately at [indico-team@cern.ch](mailto:indico-team@cern.ch)

GHSA-67cx-rhhq-mfhq Affected Indico Versions

2 component(s)
Fixed Versions:
2.1.102.2.3
Product / Package Ecosystem Affected Versions Fixed Version
indico
pypi/indico
PyPI
< 2.1.10
2.1.10
indico
pypi/indico
PyPI
≥ 2.2.0
< 2.2.3
2.2.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/indico/indico/security/advisories/GHSA-67cx-rhhq-mfhq
GitHub Advisory / Wiki ADVISORY
https://github.com/advisories/GHSA-67cx-rhhq-mfhq
Indico Source Repository REPOSITORY
https://github.com/indico/indico

Frequently Asked Questions

What is GHSA-67cx-rhhq-mfhq?
GHSA-67cx-rhhq-mfhq is a security vulnerability in Indico involving High severity vulnerability that affects indico under CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection').
Which Indico versions are affected?
Affected versions include releases prior to 2.1.10, 2.2.3 across affected packages: indico.
What version fixes GHSA-67cx-rhhq-mfhq?
Upgrading to 2.1.10, 2.2.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is indico affected?
Yes, indico is affected in releases prior to 2.1.10, 2.2.3. Upgrade your dependency to 2.1.10, 2.2.3 or later.
What CWE is associated with GHSA-67cx-rhhq-mfhq?
GHSA-67cx-rhhq-mfhq 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 GHSA-67cx-rhhq-mfhq?
Run the dependency tree command: 'pip show indico'. 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-67cx-rhhq-mfhq",
  "modified" : "2021-09-01T22:40:23Z",
  "published" : "2019-10-11T18:28:07Z",
  "aliases" : [ ],
  "summary" : "High severity vulnerability that affects indico",
  "details" : "## Local file disclosure through LaTeX injection\n\n### Impact\nAn external audit of the Indico codebase has discovered a vulnerability in Indico's LaTeX sanitization code, which could have malicious users to run unsafe LaTeX commands on the server. Such commands allowed for example to read local files (e.g. `indico.conf`).\n\nAs far as we know it is not possible to write files or execute code using this vulnerability.\n\n### Patches\nYou need to update to [Indico 2.2.3](https://github.com/indico/indico/releases/tag/v2.2.3) as soon as possible.\nWe also released [Indico 2.1.10](https://github.com/indico/indico/releases/tag/v2.1.10) in case you cannot update to 2.2 for some reason.\nSee https://docs.getindico.io/en/stable/installation/upgrade/ for instructions on how to update.\n\n### Workarounds\nSetting `XELATEX_PATH = None` in `indico.conf` will result in an error when building a PDF, but without being able to run xelatex, the vulnerability cannot be abused.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open a thread in [our forum](https://talk.getindico.io/)\n* Email us privately at [indico-team@cern.ch](mailto:indico-team@cern.ch)\n\n",
  "severity" : [ ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "indico"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.1.10"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "indico"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "2.2.0"
      }, {
        "fixed" : "2.2.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/indico/indico/security/advisories/GHSA-67cx-rhhq-mfhq"
  }, {
    "type" : "ADVISORY",
    "url" : "https://github.com/advisories/GHSA-67cx-rhhq-mfhq"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/indico/indico"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-77" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T21:18:15Z",
    "nvd_published_at" : null
  }
}