CVE-2022-1554: Scout browser Path Traversal Vulnerability

MODERATE
Advisory Identifier: GHSA-694v-63fq-fmr4
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CVSS 6.8
CWE-36 CWE-22
Published
Advisory Summary

CVE-2022-1554 is a MODERATE (CVSS 6.8) path traversal vulnerability (CWE-36: Absolute Path Traversal) affecting Scout browser libraries in the PyPI ecosystem. The issue involves path traversal in scout-browser. Remediation is available by upgrading affected packages to version 4.52.

CVE-2022-1554 at a Glance

CVE Identifier CVE-2022-1554
GHSA Identifier GHSA-694v-63fq-fmr4
Severity MODERATE
CVSS v3.1 Base Score 6.8
CWE Classification CWE-36: Absolute Path Traversal
Affected Product Scout browser
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 6.8

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

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity High (I:H)
Availability Low (A:L)

How to Fix CVE-2022-1554

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

scout-browser fixed: 4.52 
pip install scout-browser>=4.52
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 scout-browser

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2022-1554, inspect your installed packages using pip:

pip show scout-browser

Analyze the terminal output to locate any version of Scout browser in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 4.52), your application is affected.

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

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-36: Absolute Path Traversal, where the product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize absolute path sequences such as "/abs/path" that can resolve to a location that is outside of that directory. In Scout browser, 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

Scout is a Variant Call Format (VCF) visualization interface. The Pypi package `scout-browser` is vulnerable to path traversal due to `send_file` call in versions prior to 4.52.

CVE-2022-1554 Affected Scout browser Versions

1 component(s)
Fixed Versions:
4.52
Product / Package Ecosystem Affected Versions Fixed Version
scout-browser
pypi/scout-browser
PyPI
< 4.52
4.52

References

NVD — CVE-2022-1554 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-1554
Scout browser Source Repository REPOSITORY
https://github.com/Clinical-Genomics/scout/issues/3128
Scout browser Source Repository REPOSITORY
https://github.com/Clinical-Genomics/scout/issues/3302
Scout browser Source Repository REPOSITORY
https://github.com/Clinical-Genomics/scout/pull/3303
Security Fix Commit FIX COMMIT
https://github.com/clinical-genomics/scout/commit/952a2e2319af2d95d22b017a561730feac086ff1
Scout browser Source Repository REPOSITORY
https://github.com/clinical-genomics/scout
huntr.dev/bounties/7acac778-5... WEB
https://huntr.dev/bounties/7acac778-5ba4-4f02-99e2-e4e17a81e600

Frequently Asked Questions

What is CVE-2022-1554?
CVE-2022-1554 is a security vulnerability in Scout browser involving Path Traversal in scout-browser under CWE-36: Absolute Path Traversal.
Which Scout browser versions are affected?
Affected versions include releases prior to 4.52 across affected packages: scout-browser.
What version fixes CVE-2022-1554?
Upgrading to 4.52 (or the latest patched release for your respective branch) resolves the vulnerability.
Is scout-browser affected?
Yes, scout-browser is affected in releases prior to 4.52. Upgrade your dependency to 4.52 or later.
What is the CVSS score of CVE-2022-1554?
CVE-2022-1554 has a CVSS v3.1 base score of 6.8 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L.
What CWE is associated with CVE-2022-1554?
CVE-2022-1554 is classified under CWE-36: Absolute Path Traversal (The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize absolute path sequences such as "/abs/path" that can resolve to a location that is outside of that directory.).
How can I check PyPI dependencies for CVE-2022-1554?
Run the dependency tree command: 'pip show scout-browser'. 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-694v-63fq-fmr4",
  "modified" : "2022-05-18T19:57:37Z",
  "published" : "2022-05-04T00:00:24Z",
  "aliases" : [ "CVE-2022-1554" ],
  "summary" : "Path Traversal in scout-browser",
  "details" : "Scout is a Variant Call Format (VCF) visualization interface. The Pypi package `scout-browser` is vulnerable to path traversal due to `send_file` call in versions prior to 4.52.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "scout-browser"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "4.52"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-1554"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Clinical-Genomics/scout/issues/3128"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Clinical-Genomics/scout/issues/3302"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Clinical-Genomics/scout/pull/3303"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/clinical-genomics/scout/commit/952a2e2319af2d95d22b017a561730feac086ff1"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/clinical-genomics/scout"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.dev/bounties/7acac778-5ba4-4f02-99e2-e4e17a81e600"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22", "CWE-36" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-05-18T19:57:37Z",
    "nvd_published_at" : "2022-05-03T09:15:00Z"
  }
}