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Directory Traversal The advisory has been revoked - it doesn't affect any version of package openssh-cavs  (opens in a new tab)

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  • Snyk IDSNYK-SLES150-OPENSSHCAVS-2755879
  • published14 Apr 2022
  • disclosed26 Feb 2019
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Introduced: 26 Feb 2019

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

Amendment

The SLES security team deemed this advisory irrelevant for SLES:15.0.

NVD Description

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

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