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TI-2018-14690 Aliases CVE-2018-20685GHSA-28hp-2gv6-gjp8

In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass intended…

Priority LOW 30CWE-863Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
Partial Red Hat: 2 fixed, 3 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-863.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.03681 89th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 2 fixed, 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 48

CPEVersionsRoleVendor
cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*up to 7.9VulnerableOpenBSD
cpe:2.3:a:winscp:winscp:*:*:*:*:*:*:*:*up to 5.13VulnerableWinscp
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:ontap_select_deploy:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:a:netapp:storage_automation_store:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
  • cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* Versions up to 7.9 Vulnerable ·OpenBSD
  • cpe:2.3:a:winscp:winscp:*:*:*:*:*:*:*:* Versions up to 5.13 Vulnerable ·Winscp
  • cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:element_software:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:ontap_select_deploy:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:a:netapp:storage_automation_store:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
Show 38 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*18.10VulnerableCanonical
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:*8.1VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*8.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*8.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*8.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:*8.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:*8.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:*8.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:*8.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:*8.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:*8.6VulnerableRed Hat
cpe:2.3:o:oracle:solaris:10:*:*:*:*:*:*:*10VulnerableOracle
cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:*before xcp2361VulnerableFujitsu
cpe:2.3:h:fujitsu:m10-1:-:*:*:*:*:*:*:*not specified by NVDRunning onFujitsu
cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:*before xcp2361VulnerableFujitsu
cpe:2.3:h:fujitsu:m10-4:-:*:*:*:*:*:*:*not specified by NVDRunning onFujitsu
cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:*before xcp2361VulnerableFujitsu
cpe:2.3:h:fujitsu:m10-4s:-:*:*:*:*:*:*:*not specified by NVDRunning onFujitsu
cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:*before xcp2361VulnerableFujitsu
cpe:2.3:h:fujitsu:m12-1:-:*:*:*:*:*:*:*not specified by NVDRunning onFujitsu
cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:*before xcp2361VulnerableFujitsu
cpe:2.3:h:fujitsu:m12-2:-:*:*:*:*:*:*:*not specified by NVDRunning onFujitsu
cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:*before xcp2361VulnerableFujitsu
cpe:2.3:h:fujitsu:m12-2s:-:*:*:*:*:*:*:*not specified by NVDRunning onFujitsu
cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:*before xcp3070VulnerableFujitsu
cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:*before xcp3070VulnerableFujitsu
cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:*before xcp3070VulnerableFujitsu
cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:*before xcp3070VulnerableFujitsu
cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:*before xcp3070VulnerableFujitsu
cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:*before xcp3070VulnerableFujitsu
cpe:2.3:o:siemens:scalance_x204rna_firmware:*:*:*:*:*:*:*:*before 3.2.7VulnerableSiemens
cpe:2.3:h:siemens:scalance_x204rna:-:*:*:*:*:*:*:*not specified by NVDRunning onSiemens
cpe:2.3:o:siemens:scalance_x204rna_eec_firmware:*:*:*:*:*:*:*:*before 3.2.7VulnerableSiemens
cpe:2.3:h:siemens:scalance_x204rna_eec:-:*:*:*:*:*:*:*not specified by NVDRunning onSiemens
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* Versions 18.10 Vulnerable ·Canonical
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:* Versions 8.1 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:* Versions 8.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:*:*:*:*:*:*:* Versions 8.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:* Versions 8.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:*:*:*:*:*:*:* Versions 8.6 Vulnerable ·Red Hat
  • cpe:2.3:o:oracle:solaris:10:*:*:*:*:*:*:* Versions 10 Vulnerable ·Oracle
  • cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:* Versions before xcp2361 Vulnerable ·Fujitsu
  • cpe:2.3:h:fujitsu:m10-1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
  • cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:* Versions before xcp2361 Vulnerable ·Fujitsu
  • cpe:2.3:h:fujitsu:m10-4:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
  • cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:* Versions before xcp2361 Vulnerable ·Fujitsu
  • cpe:2.3:h:fujitsu:m10-4s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
  • cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:* Versions before xcp2361 Vulnerable ·Fujitsu
  • cpe:2.3:h:fujitsu:m12-1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
  • cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:* Versions before xcp2361 Vulnerable ·Fujitsu
  • cpe:2.3:h:fujitsu:m12-2:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
  • cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:* Versions before xcp2361 Vulnerable ·Fujitsu
  • cpe:2.3:h:fujitsu:m12-2s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Fujitsu
  • cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:* Versions before xcp3070 Vulnerable ·Fujitsu
  • cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:* Versions before xcp3070 Vulnerable ·Fujitsu
  • cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:* Versions before xcp3070 Vulnerable ·Fujitsu
  • cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:* Versions before xcp3070 Vulnerable ·Fujitsu
  • cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:* Versions before xcp3070 Vulnerable ·Fujitsu
  • cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:* Versions before xcp3070 Vulnerable ·Fujitsu
  • cpe:2.3:o:siemens:scalance_x204rna_firmware:*:*:*:*:*:*:*:* Versions before 3.2.7 Vulnerable ·Siemens
  • cpe:2.3:h:siemens:scalance_x204rna:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
  • cpe:2.3:o:siemens:scalance_x204rna_eec_firmware:*:*:*:*:*:*:*:* Versions before 3.2.7 Vulnerable ·Siemens
  • cpe:2.3:h:siemens:scalance_x204rna_eec:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens

Remediation

Red Hat 1 advisory

  • RHSA-2019:3702 Released 2019-11-05 · Red Hat rating Moderate
    openssh security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) openssh-askpass-8.0p1-3.el8
    • Red Hat Enterprise Linux BaseOS (v. 8) openssh-8.0p1-3.el8, openssh-cavs-8.0p1-3.el8, openssh-clients-8.0p1-3.el8 +4

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2019:3702
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2019:3702

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-20685
  2. 2026-10-03 Alias added: GHSA-28hp-2gv6-gjp8

References

Patch 6

Advisory 7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences