Directory Traversal Affecting openssh package, versions <1:7.4p1-10+deb9u6
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Test your applications- Snyk ID SNYK-DEBIAN9-OPENSSH-368607
- published 15 Jan 2019
- disclosed 31 Jan 2019
Introduced: 15 Jan 2019
CVE-2019-6111 Open this link in a new tabHow to fix?
Upgrade Debian:9
openssh
to version 1:7.4p1-10+deb9u6 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream openssh
package and not the openssh
package as distributed by Debian
.
See How to fix?
for Debian:9
relevant fixed versions and status.
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
- ADVISORY
- CVE Details
- Debian Security Advisory
- Debian Security Announcement
- Exploit DB
- Fedora Security Update
- FREEBSD
- Gentoo Security Advisory
- MISC
- MISC
- MISC
- MLIST
- MLIST
- MLIST
- MLIST
- Netapp Security Advisory
- OSS security Advisory
- REDHAT
- RedHat Bugzilla Bug
- Security Focus
- SUSE
- Ubuntu CVE Tracker
- Ubuntu Security Advisory
- Ubuntu Security Advisory
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org
- cve@mitre.org