CVE-2022-29180: Github.com/charmbracelet/charm Server-Side Request Forgery Vulnerability

CRITICAL
Advisory Identifier: GHSA-4wpp-w5r4-7v5v
CVSS 9.8
CWE-918
Published
Advisory Summary

CVE-2022-29180 is a CRITICAL (CVSS 9.8) server-side request forgery vulnerability (CWE-918: Server-Side Request Forgery (SSRF)) affecting Github.com/charmbracelet/charm libraries in the Go ecosystem. The issue involves server-side request forgery in charm. Remediation is available by upgrading affected packages to version 0.12.1.

CVE-2022-29180 at a Glance

CVE Identifier CVE-2022-29180
GHSA Identifier GHSA-4wpp-w5r4-7v5v
Severity CRITICAL
CVSS v3.1 Base Score 9.8
CWE Classification CWE-918: Server-Side Request Forgery (SSRF)
Affected Product Github.com/charmbracelet/charm
Package Ecosystem Go
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-2022-29180

To remediate this vulnerability, upgrade all affected Github.com/charmbracelet/charm 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/charmbracelet/charm fixed: 0.12.1
Upgrade github.com/charmbracelet/charm to 0.12.1
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/charmbracelet/charm

How to Check if You Are Affected

To determine whether your application is affected by CVE-2022-29180, inspect your project dependencies for Github.com/charmbracelet/charm:

inspect dependencies for github.com/charmbracelet/charm

Analyze the terminal output to locate any version of Github.com/charmbracelet/charm in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.12.1), 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/charmbracelet/charm, 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

We've discovered a vulnerability in which attackers could forge HTTP requests to manipulate the `charm` data directory to access or delete anything on the server. This has been patched in https://github.com/charmbracelet/charm/commit/3c90668f955c7ce5ef721e4fc9faee7053232fd3 and is available in release [v0.12.1](https://github.com/charmbracelet/charm/releases/tag/v0.12.1). We recommend that all users running self-hosted `charm` instances update immediately. This vulnerability was found in-house and we haven't been notified of any potential exploiters. ### Additional notes * Encrypted user data uploaded to the Charm server is safe as Charm servers cannot decrypt user data. This includes filenames, paths, and all key-value data. * Users running the official Charm [Docker images](https://github.com/charmbracelet/charm/blob/main/docker.md) are at minimal risk because the exploit is limited to the containerized filesystem. ### For more information If you have any questions or comments about this advisory: * Open a [discussion](https://github.com/charmbracelet/charm/discussions) * Email us at [vt100@charm.sh](mailto:vt100@charm.sh) * Chat with us on [Slack](https://charm.sh/slack) * * * <a href="https://charm.sh/"><img alt="the Charm logo" src="https://stuff.charm.sh/charm-badge.jpg" width="400"></a> Charm热爱开源 • Charm loves open source

CVE-2022-29180 Affected Github.com/charmbracelet/charm Versions

1 component(s)
Fixed Versions:
0.12.1
Product / Package Ecosystem Affected Versions Fixed Version
github.com/charmbracelet/charm
Go
≥ 0.9.0
< 0.12.1
0.12.1

References

Frequently Asked Questions

What is CVE-2022-29180?
CVE-2022-29180 is a security vulnerability in Github.com/charmbracelet/charm involving Server-Side Request Forgery in charm under CWE-918: Server-Side Request Forgery (SSRF).
Which Github.com/charmbracelet/charm versions are affected?
Affected versions include releases prior to 0.12.1 across affected packages: github.com/charmbracelet/charm.
What version fixes CVE-2022-29180?
Upgrading to 0.12.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/charmbracelet/charm affected?
Yes, github.com/charmbracelet/charm is affected in releases prior to 0.12.1. Upgrade your dependency to 0.12.1 or later.
What is the CVSS score of CVE-2022-29180?
CVE-2022-29180 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-2022-29180?
CVE-2022-29180 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-2022-29180?
Run the dependency tree command: 'inspect dependencies for github.com/charmbracelet/charm'. 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
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-4wpp-w5r4-7v5v",
  "modified" : "2022-05-24T20:55:22Z",
  "published" : "2022-05-24T20:55:22Z",
  "aliases" : [ "CVE-2022-29180" ],
  "summary" : "Server-Side Request Forgery in charm",
  "details" : "We've discovered a vulnerability in which attackers could forge HTTP requests to manipulate the `charm` data directory to access or delete anything on the server. This has been patched in https://github.com/charmbracelet/charm/commit/3c90668f955c7ce5ef721e4fc9faee7053232fd3 and is available in release [v0.12.1](https://github.com/charmbracelet/charm/releases/tag/v0.12.1). We recommend that all users running self-hosted `charm` instances update immediately.\n\nThis vulnerability was found in-house and we haven't been notified of any potential exploiters.\n\n### Additional notes\n\n* Encrypted user data uploaded to the Charm server is safe as Charm servers cannot decrypt user data. This includes filenames, paths, and all key-value data.\n* Users running the official Charm [Docker images](https://github.com/charmbracelet/charm/blob/main/docker.md) are at minimal risk because the exploit is limited to the containerized filesystem.\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open a [discussion](https://github.com/charmbracelet/charm/discussions)\n* Email us at [vt100@charm.sh](mailto:vt100@charm.sh)\n* Chat with us on [Slack](https://charm.sh/slack)\n\n* * *\n\n<a href=\"https://charm.sh/\"><img alt=\"the Charm logo\" src=\"https://stuff.charm.sh/charm-badge.jpg\" width=\"400\"></a>\n\nCharm热爱开源 • Charm loves open source",
  "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" : "Go",
      "name" : "github.com/charmbracelet/charm"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.9.0"
      }, {
        "fixed" : "0.12.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/charmbracelet/charm/security/advisories/GHSA-4wpp-w5r4-7v5v"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2022-29180"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/charmbracelet/charm/commit/3c90668f955c7ce5ef721e4fc9faee7053232fd3"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/charmbracelet/charm"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-918" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-05-24T20:55:22Z",
    "nvd_published_at" : "2022-05-07T04:15:00Z"
  }
}