Vulnerability Monitor

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CVE-2019-6111

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).

Published

2019-01-31T18:29:00.867

Last Modified

2024-11-21T04:45:57.900

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.9 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

8.6

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-22
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application openbsd openssh ≤ 7.9 Yes
Application winscp winscp ≤ 5.1.3 Yes
Operating System canonical ubuntu_linux 14.04 Yes
Operating System canonical ubuntu_linux 16.04 Yes
Operating System canonical ubuntu_linux 18.04 Yes
Operating System canonical ubuntu_linux 18.10 Yes
Operating System debian debian_linux 8.0 Yes
Operating System debian debian_linux 9.0 Yes
Operating System redhat enterprise_linux 7.0 Yes
Operating System redhat enterprise_linux 8.0 Yes
Operating System redhat enterprise_linux_eus 8.1 Yes
Operating System redhat enterprise_linux_eus 8.2 Yes
Operating System redhat enterprise_linux_eus 8.4 Yes
Operating System redhat enterprise_linux_eus 8.6 Yes
Operating System redhat enterprise_linux_server_aus 8.2 Yes
Operating System redhat enterprise_linux_server_aus 8.4 Yes
Operating System redhat enterprise_linux_server_aus 8.6 Yes
Operating System redhat enterprise_linux_server_tus 8.2 Yes
Operating System redhat enterprise_linux_server_tus 8.4 Yes
Operating System redhat enterprise_linux_server_tus 8.6 Yes
Operating System fedoraproject fedora 30 Yes
Application apache mina_sshd 2.2.0 Yes
Operating System freebsd freebsd < 12.0 Yes
Operating System freebsd freebsd 12.0 Yes
Operating System freebsd freebsd 12.0 Yes
Operating System freebsd freebsd 12.0 Yes
Operating System freebsd freebsd 12.0 Yes
Operating System fujitsu m10-1_firmware < xcp2361 Yes
Hardware fujitsu m10-1 - No
Operating System fujitsu m10-4_firmware < xcp2361 Yes
Hardware fujitsu m10-4 - No
Operating System fujitsu m10-4s_firmware < xcp2361 Yes
Hardware fujitsu m10-4s - No
Operating System fujitsu m12-1_firmware < xcp2361 Yes
Hardware fujitsu m12-1 - No
Operating System fujitsu m12-2_firmware < xcp2361 Yes
Hardware fujitsu m12-2 - No
Operating System fujitsu m12-2s_firmware < xcp2361 Yes
Hardware fujitsu m12-2s - No
Operating System fujitsu m10-1_firmware < xcp3070 Yes
Hardware fujitsu m10-1 - No
Operating System fujitsu m10-4_firmware < xcp3070 Yes
Hardware fujitsu m10-4 - No
Operating System fujitsu m10-4s_firmware < xcp3070 Yes
Hardware fujitsu m10-4s - No
Operating System fujitsu m12-1_firmware < xcp3070 Yes
Hardware fujitsu m12-1 - No
Operating System fujitsu m12-2_firmware < xcp3070 Yes
Hardware fujitsu m12-2 - No
Operating System fujitsu m12-2s_firmware < xcp3070 Yes
Hardware fujitsu m12-2s - No
Operating System siemens scalance_x204rna_firmware < 3.2.7 Yes
Hardware siemens scalance_x204rna - No
Operating System siemens scalance_x204rna_eec_firmware < 3.2.7 Yes
Hardware siemens scalance_x204rna_eec - No
References