CVE-2019-6111 (GCVE-0-2019-6111)

Vulnerability from cvelistv5 – Published: 2019-01-31 00:00 – Updated: 2025-12-18 14:35
VLAI?
Summary
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).
Severity ?
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

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\"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-12-18T14:34:56.672827Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-22\", \"description\": \"CWE-22 Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-12-18T14:33:15.839Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"n/a\", \"product\": \"n/a\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"datePublic\": \"2019-01-31T00:00:00.000Z\", \"references\": [{\"url\": \"https://www.debian.org/security/2019/dsa-4387\", \"name\": \"DSA-4387\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20190213-0001/\"}, {\"url\": 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\"http://www.openwall.com/lists/oss-security/2019/04/18/1\", \"name\": \"[oss-security] 20190417 Announce: OpenSSH 8.0 released\", \"tags\": [\"mailing-list\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W3YVQ2BPTOVDCFDVNC2GGF5P5ISFG37G/\", \"name\": \"FEDORA-2019-0f4190cdb0\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.apache.org/thread.html/c45d9bc90700354b58fb7455962873c44229841880dcb64842fa7d23%40%3Cdev.mina.apache.org%3E\", \"name\": \"[mina-dev] 20190620 [jira] [Created] (SSHD-925) See if SCP vulnerability CVE-2019-6111 applies and mitigate it if so\", \"tags\": [\"mailing-list\"]}, {\"url\": \"https://lists.apache.org/thread.html/c7301cab36a86825359e1b725fc40304d1df56dc6d107c1fe885148b%40%3Cdev.mina.apache.org%3E\", \"name\": \"[mina-dev] 20190623 [jira] [Comment Edited] (SSHD-925) See if SCP vulnerability CVE-2019-6111 applies and mitigate it if so\", \"tags\": [\"mailing-list\"]}, {\"url\": \"https://lists.apache.org/thread.html/e47597433b351d6e01a5d68d610b4ba195743def9730e49561e8cf3f%40%3Cdev.mina.apache.org%3E\", \"name\": \"[mina-dev] 20190623 [jira] [Commented] (SSHD-925) See if SCP vulnerability CVE-2019-6111 applies and mitigate it if so\", \"tags\": [\"mailing-list\"]}, {\"url\": \"http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00058.html\", \"name\": \"openSUSE-SU-2019:1602\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://www.freebsd.org/security/advisories/FreeBSD-EN-19:10.scp.asc\", \"name\": \"FreeBSD-EN-19:10\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.apache.org/thread.html/d540139359de999b0f1c87d05b715be4d7d4bec771e1ae55153c5c7a%40%3Cdev.mina.apache.org%3E\", \"name\": \"[mina-dev] 20190820 [jira] [Resolved] (SSHD-925) See if SCP vulnerability CVE-2019-6111 applies and mitigate it if so\", \"tags\": [\"mailing-list\"]}, {\"url\": \"https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html\"}, {\"url\": \"https://access.redhat.com/errata/RHSA-2019:3702\", \"name\": \"RHSA-2019:3702\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2022/08/02/1\", \"name\": \"[oss-security] 20220802 CVE-2022-29154: Rsync client-side arbitrary file write vulnerability.\", \"tags\": [\"mailing-list\"]}, {\"url\": \"https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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).\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"n/a\"}]}], \"providerMetadata\": {\"orgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"shortName\": \"mitre\", \"dateUpdated\": \"2022-12-13T00:00:00.000Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2019-6111\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-12-18T14:35:00.730Z\", \"dateReserved\": \"2019-01-10T00:00:00.000Z\", \"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"datePublished\": \"2019-01-31T00:00:00.000Z\", \"assignerShortName\": \"mitre\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Taxonomy of the tags.




Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.