REDHAT-BUG-1666127
First published: Tue Jan 15 2019(Updated: )
OpenSSH has a vulnerability in the scp client utility. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, scp client only perform cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server 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 overwrite .ssh/authorized_keys). External Reference: <a href="https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt">https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt</a> Proposed Patch: <a href="https://sintonen.fi/advisories/scp-name-validator.patch">https://sintonen.fi/advisories/scp-name-validator.patch</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| GSI OpenSSH |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt
- https://sintonen.fi/advisories/scp-name-validator.patch
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1666128
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1666127#c2
- https://access.redhat.com/errata/RHSA-2019:3702
- https://access.redhat.com/security/cve/cve-2019-6111
- https://bugzilla.redhat.com/show_bug.cgi?id=1666127
- agent/type
- agent/last-modified-date
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2019-6111
- agent/first-publish-date
- agent/severity
- agent/references
- agent/description
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- agent/guess-ai
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/openssh
- canonical/gsi openssh