ghsa-jr78-hfw4-xp7g
Vulnerability from github
Published
2022-05-13 01:22
Modified
2022-05-13 01:22
Severity ?
5.9 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Details

An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).

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{
  "affected": [],
  "aliases": [
    "CVE-2019-6111"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-01-31T18:29:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).",
  "id": "GHSA-jr78-hfw4-xp7g",
  "modified": "2022-05-13T01:22:35Z",
  "published": "2022-05-13T01:22:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-6111"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"
    },
    {
      "type": "WEB",
      "url": "https://www.freebsd.org/security/advisories/FreeBSD-EN-19:10.scp.asc"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/46193"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2019/dsa-4387"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3885-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3885-1"
    },
    {
      "type": "WEB",
      "url": "https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20190213-0001"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201903-16"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W3YVQ2BPTOVDCFDVNC2GGF5P5ISFG37G"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/e47597433b351d6e01a5d68d610b4ba195743def9730e49561e8cf3f@%3Cdev.mina.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/d540139359de999b0f1c87d05b715be4d7d4bec771e1ae55153c5c7a@%3Cdev.mina.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/c7301cab36a86825359e1b725fc40304d1df56dc6d107c1fe885148b@%3Cdev.mina.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/c45d9bc90700354b58fb7455962873c44229841880dcb64842fa7d23@%3Cdev.mina.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1677794"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:3702"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00058.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2019/04/18/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2022/08/02/1"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/106741"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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