Homepage

Directory Traversal The advisory has been revoked - it doesn't affect any version of package openssh  (opens in a new tab)

Threat Intelligence

EPSS
58.2% (99th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UBUNTU2004-OPENSSH-638948
  • published15 Jan 2019
  • disclosed31 Jan 2019
Report a new vulnerability Found a mistake?

Introduced: 15 Jan 2019

CVE-2019-6111  (opens in a new tab)
CWE-22  (opens in a new tab)

Amendment

The Ubuntu security team deemed this advisory irrelevant for Ubuntu:20.04.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh package and not the openssh package as distributed by Ubuntu.

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).

References