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Red Hat: CVE-2019-6111: Moderate: openssh security, bug fix, and enhancement update (RHSA-2019:3702)

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Red Hat: CVE-2019-6111: Moderate: openssh security, bug fix, and enhancement update (RHSA-2019:3702)

Severity
6
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:P)
Published
01/31/2019
Created
11/07/2019
Added
11/06/2019
Modified
07/19/2021

Description

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).

Solution(s)

  • redhat-upgrade-openssh
  • redhat-upgrade-openssh-askpass
  • redhat-upgrade-openssh-askpass-debuginfo
  • redhat-upgrade-openssh-cavs
  • redhat-upgrade-openssh-cavs-debuginfo
  • redhat-upgrade-openssh-clients
  • redhat-upgrade-openssh-clients-debuginfo
  • redhat-upgrade-openssh-debuginfo
  • redhat-upgrade-openssh-debugsource
  • redhat-upgrade-openssh-keycat
  • redhat-upgrade-openssh-keycat-debuginfo
  • redhat-upgrade-openssh-ldap
  • redhat-upgrade-openssh-ldap-debuginfo
  • redhat-upgrade-openssh-server
  • redhat-upgrade-openssh-server-debuginfo
  • redhat-upgrade-pam_ssh_agent_auth
  • redhat-upgrade-pam_ssh_agent_auth-debuginfo

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