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).
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.9, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts integrity (unauthorized modifications), for affected systems. Impacting 27 products from openbsd, from winscp, from canonical and 24 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2019-01-31T18:29:00.867
2025-12-18T15:15:48.147
Modified
CVSSv3.1: 5.9 (MEDIUM)
AV:N/AC:M/Au:N/C:N/I:P/A:P
8.6
4.9
| 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 |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For openbsd's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.