CVE-2019-14889 : A flaw was found with the libssh API function ssh_scp

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.

Published 2019-12-10 23:15:11

Updated 2023-05-30 00:15:09

Source Red Hat, Inc.

View at NVD, CVE.org

Products affected by CVE-2019-14889

Debian » Debian Linux » Version: 8.0
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Matching versions
Oracle » Mysql Workbench
Versions up to, including, (<=) 8.0.19
cpe:2.3:a:oracle:mysql_workbench:*:*:*:*:*:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 16.04 LTS Edition
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 18.04 LTS Edition
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 19.10
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 19.04
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 31
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 30
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
Matching versions
Opensuse » Leap » Version: 15.1
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
Matching versions
Libssh » Libssh
Versions before (<) 0.8.8
cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*
Matching versions
Libssh » Libssh
Versions from including (>=) 0.9.0 and before (<) 0.9.3
cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2019-14889

Top countries where our scanners detected CVE-2019-14889

Top open port discovered on systems with this issue 22

IPs affected by CVE-2019-14889 3,524

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2019-14889!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2019-14889

EPSS FAQ

0.72%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 80 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2019-14889

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
9.3	HIGH	AV:N/AC:M/Au:N/C:C/I:C/A:C	8.6	10.0	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Complete Integrity Impact: Complete Availability Impact: Complete
7.1	HIGH	CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H	1.2	5.9	Red Hat, Inc.
Attack Vector: Network Attack Complexity: High Privileges Required: Low User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2019-14889

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)

References for CVE-2019-14889

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EV2ONSPDJCTDVORCB4UGRQUZQQ46JHRN/

[SECURITY] Fedora 30 Update: libssh-0.9.3-1.fc30 - package-announce - Fedora Mailing-Lists
Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14889

1772523 – (CVE-2019-14889) CVE-2019-14889 libssh: unsanitized location in scp could lead to unwanted command execution
Issue Tracking;Patch;Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2020.html

Oracle Critical Patch Update Advisory - April 2020
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00033.html

[security-announce] openSUSE-SU-2019:2689-1: important: Security update
Mailing List;Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00047.html

[security-announce] openSUSE-SU-2020:0102-1: important: Security update
Mailing List;Third Party Advisory
https://usn.ubuntu.com/4219-1/

USN-4219-1: libssh vulnerability | Ubuntu security notices
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2023/05/msg00029.html

[SECURITY] [DLA 3437-1] libssh security update

CVEs referencing this url
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7JJWJTXVWLLJTVHBPGWL7472S5FWXYQR/

[SECURITY] Fedora 31 Update: libssh-0.9.3-1.fc31 - package-announce - Fedora Mailing-Lists
Third Party Advisory
https://www.libssh.org/security/advisories/CVE-2019-14889.txt

Vendor Advisory
https://security.gentoo.org/glsa/202003-27

libssh: Arbitrary command execution (GLSA 202003-27) — Gentoo security
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/12/msg00020.html

[SECURITY] [DLA 2038-1] libssh security update
Mailing List;Third Party Advisory