CVE-2018-20685 : In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass inte

In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass intended access restrictions via the filename of . or an empty filename. The impact is modifying the permissions of the target directory on the client side.

Published 2019-01-10 21:29:00

Updated 2023-02-23 23:15:18

Source MITRE

View at NVD, CVE.org

Products affected by CVE-2018-20685

Debian » Debian Linux » Version: 8.0
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Matching versions
Debian » Debian Linux » Version: 9.0
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux » Version: 7.0
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux » Version: 8.0
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Eus » Version: 8.1
cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Eus » Version: 8.2
cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Eus » Version: 8.4
cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Eus » Version: 8.6
cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Aus » Version: 8.2
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Aus » Version: 8.4
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Aus » Version: 8.6
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Tus » Version: 8.2
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Tus » Version: 8.4
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*
Matching versions
Redhat » Enterprise Linux Server Tus » Version: 8.6
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:*
Matching versions
Oracle » Solaris » Version: 10
cpe:2.3:o:oracle:solaris:10:*:*:*:*:*:*:*
Matching versions
Openbsd » Openssh
Versions up to, including, (<=) 7.9
cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*
Matching versions
Siemens » Scalance X204rna Firmware
Versions before (<) 3.2.7
cpe:2.3:o:siemens:scalance_x204rna_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Siemens » Scalance X204rna » Version: N/A
Siemens » Scalance X204rna Eec Firmware
Versions before (<) 3.2.7
cpe:2.3:o:siemens:scalance_x204rna_eec_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Siemens » Scalance X204rna Eec » Version: N/A
Fujitsu » M10-1 Firmware
Versions before (<) xcp2361
cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fujitsu » M10-1 » Version: N/A
Fujitsu » M10-1 Firmware
Versions before (<) xcp3070
cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fujitsu » M10-1 » Version: N/A
Fujitsu » M10-4 Firmware
Versions before (<) xcp3070
cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fujitsu » M10-4 » Version: N/A
Fujitsu » M10-4 Firmware
Versions before (<) xcp2361
cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fujitsu » M10-4 » Version: N/A
Fujitsu » M10-4s Firmware
Versions before (<) xcp3070
cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fujitsu » M10-4s » Version: N/A
Fujitsu » M10-4s Firmware
Versions before (<) xcp2361
cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fujitsu » M10-4s » Version: N/A
Fujitsu » M12-1 Firmware
Versions before (<) xcp3070
cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fujitsu » M12-1 » Version: N/A
Fujitsu » M12-1 Firmware
Versions before (<) xcp2361
cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fujitsu » M12-1 » Version: N/A
Fujitsu » M12-2 Firmware
Versions before (<) xcp2361
cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fujitsu » M12-2 » Version: N/A
Fujitsu » M12-2 Firmware
Versions before (<) xcp3070
cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fujitsu » M12-2 » Version: N/A
Fujitsu » M12-2s Firmware
Versions before (<) xcp3070
cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fujitsu » M12-2s » Version: N/A
Fujitsu » M12-2s Firmware
Versions before (<) xcp2361
cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: Fujitsu » M12-2s » Version: N/A
Winscp » Winscp
Versions up to, including, (<=) 5.13
cpe:2.3:a:winscp:winscp:*:*:*:*:*:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 14.04 LTS Edition
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
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: 18.10
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
Matching versions
Netapp » Cloud Backup » Version: N/A
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
Matching versions
Netapp » Element Software » Version: N/A
cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:*
Matching versions
Netapp » Ontap Select Deploy » Version: N/A
cpe:2.3:a:netapp:ontap_select_deploy:-:*:*:*:*:*:*:*
Matching versions
Netapp » Steelstore Cloud Integrated Storage » Version: N/A
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*
Matching versions
Netapp » Storage Automation Store » Version: N/A
cpe:2.3:a:netapp:storage_automation_store:-:*:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2018-20685

Top countries where our scanners detected CVE-2018-20685

Top open port discovered on systems with this issue 22

IPs affected by CVE-2018-20685 24,944,489

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2018-20685!

^*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-2018-20685

EPSS FAQ

3.47%

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

~ 87 %

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

CVSS scores for CVE-2018-20685

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
2.6	LOW	AV:N/AC:H/Au:N/C:N/I:P/A:N	4.9	2.9	NIST
Access Vector: Network Access Complexity: High Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
5.3	MEDIUM	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N	1.6	3.6	NIST
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: High Availability: None

CWE ids for CVE-2018-20685

CWE-863 Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-20685

https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt

Patch;Third Party Advisory

CVEs referencing this url
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

Page not found | Oracle
Patch;Third Party Advisory

CVEs referencing this url
https://security.gentoo.org/glsa/201903-16

OpenSSH: Multiple vulnerabilities (GLSA 201903-16) — Gentoo security
Third Party Advisory

CVEs referencing this url
https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/scp.c.diff?r1=1.197&r2=1.198&f=h

src/usr.bin/ssh/scp.c - diff - 1.198
Patch
https://github.com/openssh/openssh-portable/commit/6010c0303a422a9c5fa8860c061bf7105eb7f8b2

upstream: disallow empty incoming filename or ones that refer to the · openssh/openssh-portable@6010c03 · GitHub
Patch
https://security.gentoo.org/glsa/202007-53

Dropbear: Multiple vulnerabilities (GLSA 202007-53) — Gentoo security
Third Party Advisory

CVEs referencing this url
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html

Oracle Critical Patch Update - April 2019
Patch;Third Party Advisory

CVEs referencing this url
https://security.netapp.com/advisory/ntap-20190215-0001/

CVE-2018-20685 OpenSSH Vulnerability in NetApp Products | NetApp Product Security
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:3702

RHSA-2019:3702 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
https://usn.ubuntu.com/3885-1/

USN-3885-1: OpenSSH vulnerabilities | Ubuntu security notices
Third Party Advisory

CVEs referencing this url
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

Patch;Third Party Advisory

CVEs referencing this url
http://www.securityfocus.com/bid/106531

OpenSSH CVE-2018-20685 Access Bypass Vulnerability
Broken Link
https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html

[SECURITY] [DLA 1728-1] openssh security update
Mailing List;Third Party Advisory

CVEs referencing this url
https://www.debian.org/security/2019/dsa-4387

Debian -- Security Information -- DSA-4387-1 openssh
Third Party Advisory

CVEs referencing this url

Jump to