Vulnerability CVE-2019-14889
Published: 2019-12-10   Modified: 2019-12-11

Description:
A flaw was found with the libssh API function ssh_scp_new() in versions before 0.9.3 and before 0.8.8. When the libssh SCP client connects to a server, the scp command, which includes a user-provided path, is executed on the server-side. In case the library is used in a way where users can influence the third parameter of the function, it would become possible for an attacker to inject arbitrary commands, leading to a compromise of the remote target.

Type:

CWE-74

CVSS2 => (AV:N/AC:M/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9.3/10
10/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Libssh -> Libssh 
Canonical -> Ubuntu linux 

 References:
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00033.html
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14889
https://lists.debian.org/debian-lts-announce/2019/12/msg00020.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7JJWJTXVWLLJTVHBPGWL7472S5FWXYQR/
https://usn.ubuntu.com/4219-1/
https://www.libssh.org/security/advisories/CVE-2019-14889.txt
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