GHSA-G5QJ-PFMG-P3JP

Vulnerability from github – Published: 2024-07-02 21:32 – Updated: 2025-11-04 18:31
VLAI?
Details

OpenSSH 9.5 through 9.7 before 9.8 sometimes allows timing attacks against echo-off password entry (e.g., for su and Sudo) because of an ObscureKeystrokeTiming logic error. Similarly, other timing attacks against keystroke entry could occur.

Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2024-39894"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-367"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-07-02T18:15:03Z",
    "severity": "HIGH"
  },
  "details": "OpenSSH 9.5 through 9.7 before 9.8 sometimes allows timing attacks against echo-off password entry (e.g., for su and Sudo) because of an ObscureKeystrokeTiming logic error. Similarly, other timing attacks against keystroke entry could occur.",
  "id": "GHSA-g5qj-pfmg-p3jp",
  "modified": "2025-11-04T18:31:03Z",
  "published": "2024-07-02T21:32:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39894"
    },
    {
      "type": "WEB",
      "url": "https://crzphil.github.io/posts/ssh-obfuscation-bypass"
    },
    {
      "type": "WEB",
      "url": "https://lists.mindrot.org/pipermail/openssh-unix-announce/2024-July/000158.html"
    },
    {
      "type": "WEB",
      "url": "https://news.ycombinator.com/item?id=41508530"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20240712-0004"
    },
    {
      "type": "WEB",
      "url": "https://www.freebsd.org/security/advisories/FreeBSD-SA-25:01.openssh.asc"
    },
    {
      "type": "WEB",
      "url": "https://www.openssh.com/txt/release-9.8"
    },
    {
      "type": "WEB",
      "url": "https://www.openwall.com/lists/oss-security/2024/07/02/1"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2024/Sep/33"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2024/07/03/6"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2024/07/23/4"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2024/07/23/6"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2024/07/28/3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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.



Detection rules are retrieved from Rulezet.