Vulnerability-Lookup

GHSA-8FCJ-GF77-47MG

Vulnerability from github – Published: 2023-01-25 19:40 – Updated: 2023-02-07 15:50

Summary

Denial of service (DoS) when processing Git credentials

Details

Impact

A denial of services (DoS) vulnerability was discovered in Wrangler Git package affecting versions up to and including v1.0.0.

Specially crafted Git credentials can result in a denial of service (DoS) attack on an application that uses Wrangler due to the exhaustion of the available memory and CPU resources. This is caused by a lack of input validation of Git credentials before they are used, which may lead to a denial of service in some cases. This issue can be triggered when accessing both private and public Git repositories.

Workarounds

A workaround is to sanitize input passed to the Git package to remove potential unsafe and ambiguous characters. Otherwise, the best course of action is to update to a patched Wrangler version.

Patches

Patched versions include v1.0.1 and later and the backported tags - v0.7.4-security1, v0.8.5-security1 and v0.8.11.

For more information

If you have any questions or comments about this advisory:

Reach out to SUSE Rancher Security team for security related inquiries.
Open an issue in Rancher or Wrangler repository.
Verify our support matrix and product support lifecycle.

Severity

5.9 (Medium)


                  
                    CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H

Show details on source website

JSON

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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.7.3"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/rancher/wrangler"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.7.4-security1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 0.8.4"
      },
      "package": {
        "ecosystem": "Go",
        "name": "github.com/rancher/wrangler"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.8.0"
            },
            {
              "fixed": "0.8.5-security1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/rancher/wrangler"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.0.0"
            },
            {
              "fixed": "1.0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.0"
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/rancher/wrangler"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.8.6"
            },
            {
              "fixed": "0.8.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-43756"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-150",
      "CWE-74"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-01-25T19:40:26Z",
    "nvd_published_at": "2023-02-07T13:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nA denial of services (DoS) vulnerability was discovered in Wrangler Git package affecting versions up to and including `v1.0.0`.\n\nSpecially crafted Git credentials can result in a denial of service (DoS) attack on an application that uses Wrangler due to the exhaustion of the available memory and CPU resources. This is caused by a lack of input validation of Git credentials before they are used, which may lead to a denial of service in some cases. This issue can be triggered when accessing both private and public Git repositories. \n\n### Workarounds\n\nA workaround is to sanitize input passed to the Git package to remove potential unsafe and ambiguous characters. Otherwise, the best course of action is to update to a patched Wrangler version.\n\n### Patches\n\nPatched versions include `v1.0.1` and later and the backported tags - `v0.7.4-security1`, `v0.8.5-security1` and `v0.8.11`.\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Reach out to [SUSE Rancher Security team](https://github.com/rancher/rancher/security/policy) for security related inquiries.\n* Open an issue in [Rancher](https://github.com/rancher/rancher/issues/new/choose) or [Wrangler](https://github.com/rancher/wrangler/issues/new) repository.\n* Verify our [support matrix](https://www.suse.com/suse-rancher/support-matrix/all-supported-versions/) and [product support lifecycle](https://www.suse.com/lifecycle/).",
  "id": "GHSA-8fcj-gf77-47mg",
  "modified": "2023-02-07T15:50:58Z",
  "published": "2023-01-25T19:40:26Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/rancher/wrangler/security/advisories/GHSA-8fcj-gf77-47mg"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-43756"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rancher/wrangler/commit/341018c8fef3e12867c7cb2649bd2cecac75f287"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=1205296"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-8fcj-gf77-47mg"
    },
    {
      "type": "WEB",
      "url": "https://github.com/rancher/rancher/security/policy"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/rancher/wrangler"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2023-1515"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Denial of service (DoS) when processing Git credentials"
}

CVE-2022-43756 (GCVE-0-2022-43756)

Vulnerability from cvelistv5 – Published: 2023-02-07 00:00 – Updated: 2025-03-25 15:37

Title

Rancher/Wrangler: Denial of service when processing Git credentials

Summary

A Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in SUSE Rancher allows remote attackers to cause denial of service by supplying specially crafted git credentials. This issue affects: SUSE Rancher wrangler version 0.7.3 and prior versions; wrangler version 0.8.4 and prior versions; wrangler version 1.0.0 and prior versions.

Severity

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-25 15:37 UTC

CWE

CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Assigner

suse mitre root Scorecard

References

1 reference

URL	Tags
https://bugzilla.suse.com/show_bug.cgi?id=1205296

Impacted products

1 product

Vendor	Product	Version
SUSE	Rancher	Affected: wrangler , ≤ 0.7.3 (custom)

Date Public

2023-01-25 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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