CVE-2022-1849: Filegator/filegator Improper User Session Handling Vulnerability

MODERATE
Advisory Identifier: GHSA-47vg-483w-hp3m
Share
CVSS 4.3
CWE-384
Published
Advisory Summary

CVE-2022-1849 is a MODERATE (CVSS 4.3) improper user session handling vulnerability (CWE-384: Session Fixation) affecting Filegator/filegator libraries in the Packagist ecosystem. The issue involves improper user session handling in filegator. Remediation is available by upgrading affected packages to version 7.8.0.

CVE-2022-1849 at a Glance

CVE Identifier CVE-2022-1849
GHSA Identifier GHSA-47vg-483w-hp3m
Severity MODERATE
CVSS v3.1 Base Score 4.3
CWE Classification CWE-384: Session Fixation
Affected Product Filegator/filegator
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 4.3

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:N/S:U/C:N/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2022-1849

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

filegator/filegator fixed: 7.8.0 
Upgrade filegator/filegator to 7.8.0
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 filegator/filegator

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-1849, inspect your project dependencies for Filegator/filegator:

inspect dependencies for filegator/filegator

Analyze the terminal output to locate any version of Filegator/filegator in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 7.8.0), 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-384: Session Fixation, where authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions. In Filegator/filegator, 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

FileGator prior to version 7.8.0 is vulnerable to session fixation.

CVE-2022-1849 Affected Filegator/filegator Versions

1 component(s)
Fixed Versions:
7.8.0
Product / Package Ecosystem Affected Versions Fixed Version
filegator/filegator
 Packagist
< 7.8.0
7.8.0

References

NVD — CVE-2022-1849 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-1849
Security Fix Commit FIX COMMIT
https://github.com/filegator/filegator/commit/fcd3995f64f5dfc6a4c2c059cc22a2fef1e81225
Filegator/filegator Source Repository REPOSITORY
https://github.com/filegator/filegator
huntr.dev/bounties/881f8f36-d... WEB
https://huntr.dev/bounties/881f8f36-d5c8-470d-8261-f109e6d5db4b

Frequently Asked Questions

What is CVE-2022-1849?
CVE-2022-1849 is a security vulnerability in Filegator/filegator involving Improper user session handling in filegator under CWE-384: Session Fixation.
Which Filegator/filegator versions are affected?
Affected versions include releases prior to 7.8.0 across affected packages: filegator/filegator.
What version fixes CVE-2022-1849?
Upgrading to 7.8.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is filegator/filegator affected?
Yes, filegator/filegator is affected in releases prior to 7.8.0. Upgrade your dependency to 7.8.0 or later.
What is the CVSS score of CVE-2022-1849?
CVE-2022-1849 has a CVSS v3.1 base score of 4.3 (MODERATE) with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2022-1849?
CVE-2022-1849 is classified under CWE-384: Session Fixation (Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.).
How can I check Packagist dependencies for CVE-2022-1849?
Run the dependency tree command: 'inspect dependencies for filegator/filegator'. 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-47vg-483w-hp3m",
  "modified" : "2022-06-06T17:58:46Z",
  "published" : "2022-05-25T00:00:31Z",
  "aliases" : [ "CVE-2022-1849" ],
  "summary" : "Improper user session handling in filegator",
  "details" : "FileGator prior to version 7.8.0 is vulnerable to session fixation.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "filegator/filegator"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "7.8.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-1849"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/filegator/filegator/commit/fcd3995f64f5dfc6a4c2c059cc22a2fef1e81225"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/filegator/filegator"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.dev/bounties/881f8f36-d5c8-470d-8261-f109e6d5db4b"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-384" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-05-25T22:44:17Z",
    "nvd_published_at" : "2022-05-24T16:15:00Z"
  }
}