CVE-2022-24825: Github.com/stripe/smokescreen Smokescreen SSRF Vulnerability

MODERATE
Advisory Identifier: GHSA-gcj7-j438-hjj2
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CVSS 5.8
CWE-918
Published
Advisory Summary

CVE-2022-24825 is a MODERATE (CVSS 5.8) smokescreen ssrf vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Github.com/stripe/smokescreen libraries in the Go ecosystem. The issue involves smokescreen ssrf via deny list bypass. Remediation is available by upgrading affected packages to version 0.0.3.

CVE-2022-24825 at a Glance

CVE Identifier CVE-2022-24825
GHSA Identifier GHSA-gcj7-j438-hjj2
Severity MODERATE
CVSS v3.1 Base Score 5.8
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Github.com/stripe/smokescreen
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 5.8

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

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

How to Fix CVE-2022-24825

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

github.com/stripe/smokescreen fixed: 0.0.3 
Upgrade github.com/stripe/smokescreen to 0.0.3
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 github.com/stripe/smokescreen

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-24825, inspect your project dependencies for Github.com/stripe/smokescreen:

inspect dependencies for github.com/stripe/smokescreen

Analyze the terminal output to locate any version of Github.com/stripe/smokescreen in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.0.3), 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-918: Server-Side Request Forgery (SSRF), where the web server receives a url or similar request from an upstream component and retrieves the contents of this url, but it does not sufficiently ensure that the request is being sent to the expected destination. In Github.com/stripe/smokescreen, 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

The primary use case for Smokescreen is to prevent server-side request forgery (SSRF) attacks in which external attackers leverage the behavior of applications to connect to or scan internal infrastructure. Smokescreen also offers an option to deny access to additional (e.g., external) URLs by way of a deny list. There was an issue in Smokescreen that made it possible to bypass the deny list feature by appending a dot to the end of user-supplied URLs, or by providing input in a different letter case. ### Recommendation Upgrade Smokescreen to version 0.0.3 or later. ### Acknowledgements Thanks to [Grzegorz Niedziela](https://twitter.com/gregxsunday) for reporting the issue. ### For more information Email us at security@stripe.com

CVE-2022-24825 Affected Github.com/stripe/smokescreen Versions

1 component(s)
Fixed Versions:
0.0.3
Product / Package Ecosystem Affected Versions Fixed Version
github.com/stripe/smokescreen
golang/github.com/stripe/smokescreen
Go
< 0.0.3
0.0.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/stripe/smokescreen/security/advisories/GHSA-gcj7-j438-hjj2
NVD — CVE-2022-24825 NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-24825
Security Fix Commit FIX COMMIT
https://github.com/stripe/smokescreen/commit/fafb6ae48c6c40aa011d87b61306abc48db8797b
github.com/stripe/sm... PACKAGE
github.com/stripe/smokescreen

Frequently Asked Questions

What is CVE-2022-24825?
CVE-2022-24825 is a security vulnerability in Github.com/stripe/smokescreen involving Smokescreen SSRF via deny list bypass under CWE-918: Server-Side Request Forgery (SSRF).
Which Github.com/stripe/smokescreen versions are affected?
Affected versions include releases prior to 0.0.3 across affected packages: github.com/stripe/smokescreen.
What version fixes CVE-2022-24825?
Upgrading to 0.0.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/stripe/smokescreen affected?
Yes, github.com/stripe/smokescreen is affected in releases prior to 0.0.3. Upgrade your dependency to 0.0.3 or later.
What is the CVSS score of CVE-2022-24825?
CVE-2022-24825 has a CVSS v3.1 base score of 5.8 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N.
What CWE is associated with CVE-2022-24825?
CVE-2022-24825 is classified under CWE-918: Server-Side Request Forgery (SSRF) (The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.).
How can I check Go dependencies for CVE-2022-24825?
Run the dependency tree command: 'inspect dependencies for github.com/stripe/smokescreen'. 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-gcj7-j438-hjj2",
  "modified" : "2022-04-07T22:10:22Z",
  "published" : "2022-04-07T22:10:22Z",
  "aliases" : [ "CVE-2022-24825" ],
  "summary" : "Smokescreen SSRF via deny list bypass",
  "details" : "The primary use case for Smokescreen is to prevent server-side request forgery (SSRF) attacks in which external attackers leverage the behavior of applications to connect to or scan internal infrastructure.\n\nSmokescreen also offers an option to deny access to additional (e.g., external) URLs by way of a deny list. There was an issue in Smokescreen that made it possible to bypass the deny list feature by appending a dot to the end of user-supplied URLs, or by providing input in a different letter case.\n\n### Recommendation\nUpgrade Smokescreen to version 0.0.3 or later.\n\n### Acknowledgements\nThanks to [Grzegorz Niedziela](https://twitter.com/gregxsunday) for reporting the issue.\n\n### For more information\nEmail us at security@stripe.com",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/stripe/smokescreen"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.0.3"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/stripe/smokescreen/security/advisories/GHSA-gcj7-j438-hjj2"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-24825"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/stripe/smokescreen/commit/fafb6ae48c6c40aa011d87b61306abc48db8797b"
  }, {
    "type" : "PACKAGE",
    "url" : "github.com/stripe/smokescreen"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-04-07T22:10:22Z",
    "nvd_published_at" : "2022-04-19T20:15:00Z"
  }
}