github - ghsa-hh67-847q-q3h9

ghsa-hh67-847q-q3h9

Vulnerability from github

Published

2025-10-06 21:30

Modified

2025-10-07 15:30

Severity ?

3.6 (Low) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

Details

ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2025-61984"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-159"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-06T19:15:36Z",
    "severity": "LOW"
  },
  "details": "ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)",
  "id": "GHSA-hh67-847q-q3h9",
  "modified": "2025-10-07T15:30:25Z",
  "published": "2025-10-06T21:30:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61984"
    },
    {
      "type": "WEB",
      "url": "https://dgl.cx/2025/10/bash-a-newline-ssh-proxycommand-cve-2025-61984"
    },
    {
      "type": "WEB",
      "url": "https://marc.info/?l=openssh-unix-dev\u0026m=175974522032149\u0026w=2"
    },
    {
      "type": "WEB",
      "url": "https://www.openssh.com/releasenotes.html#10.1p1"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2025/10/06/1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2025-61984 (GCVE-0-2025-61984)

Vulnerability from cvelistv5

Published

2025-10-06 00:00

Modified

2025-10-08 03:55

Severity ?

3.6 (Low) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

CWE

CWE-159 - Improper Handling of Invalid Use of Special Elements

Summary

References

▼	URL	Tags
	https://www.openwall.com/lists/oss-security/2025/10/06/1
	https://marc.info/?l=openssh-unix-dev&m=175974522032149&w=2
	https://www.openssh.com/releasenotes.html#10.1p1

Impacted products

	Vendor	Product	Version
	OpenBSD	OpenSSH	Version: 0 < 10.1

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-61984",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-07T00:00:00+00:00",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-08T03:55:09.867Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://dgl.cx/2025/10/bash-a-newline-ssh-proxycommand-cve-2025-61984"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "OpenSSH",
          "vendor": "OpenBSD",
          "versions": [
            {
              "lessThan": "10.1",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "10.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 3.6,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-159",
              "description": "CWE-159 Improper Handling of Invalid Use of Special Elements",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-06T18:17:49.959Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://www.openwall.com/lists/oss-security/2025/10/06/1"
        },
        {
          "url": "https://marc.info/?l=openssh-unix-dev\u0026m=175974522032149\u0026w=2"
        },
        {
          "url": "https://www.openssh.com/releasenotes.html#10.1p1"
        }
      ],
      "x_generator": {
        "engine": "enrichogram 0.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2025-61984",
    "datePublished": "2025-10-06T00:00:00.000Z",
    "dateReserved": "2025-10-06T00:00:00.000Z",
    "dateUpdated": "2025-10-08T03:55:09.867Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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