Vulnerability Details : 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).
Vulnerability category: Directory traversal
Published 2019-01-31 18:29:01
Updated 2023-03-24 18:12:41
Source MITRE
View at NVD,   CVE.org

Threat overview for CVE-2019-6111

Top countries where our scanners detected CVE-2019-6111
Top open port discovered on systems with this issue 22
IPs affected by CVE-2019-6111 19,751,113
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2019-6111!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2019-6111

Probability of exploitation activity in the next 30 days: 0.20%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 58 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2019-6111

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Source
5.8
 MEDIUM AV:N/AC:M/Au:N/C:N/I:P/A:P
8.6
4.9
 nvd@nist.gov
5.9
 MEDIUM CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
2.2
3.6
 nvd@nist.gov

CWE ids for CVE-2019-6111

  • The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2019-6111

Products affected by CVE-2019-6111

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