CVE-2017-15906
Advisory lineage Upstream: 0 Downstream: 13
Modified
Published: 26 Oct 2017, 00:00
Last modified:28 May 2026, 17:56
Vulnerability Summary
Overall Risk (default)
low
22/100 CVSS Score
5.3 MEDIUM
v3.1 (nvd)
EPSS Score
2.66% LOW
3% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
26 Oct 2017, 00:00
Published
Vulnerability first disclosed
28 May 2026, 17:56
Last Modified
Vulnerability information updated
Description
The process_open function in sftp-server.c in OpenSSH before 7.6 does not properly prevent write operations in readonly mode, which allows attackers to create zero-length files.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:P/A:N
EPSS Trends
Current EPSS score: 2.66%• Percentile: 86%
Techniques & Countermeasures
- CWE-732•Incorrect Permission Assignment for Critical Resource
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.
Affected Systems
- debian•debian_linux
8.0
- netapp•active_iq_unified_manager
na
- netapp•cloud_backup
na
- netapp•clustered_data_ontap
na
- netapp•cn1610_firmware
na
- netapp•data_ontap_edge
na
- netapp•hci_management_node
na
- netapp•oncommand_unified_manager_core_package
na
- netapp•solidfire
na
- netapp•steelstore_cloud_integrated_storage
na
- netapp•storage_replication_adapter_for_clustered_data_ontap
≥ 9.7 | 9.6
- netapp•vasa_provider_for_clustered_data_ontap
≥ 6.0, ≤ 6.2 | ≥ 9.7
- netapp•virtual_storage_console
≥ 9.7 | 9.6
- openbsd•openssh
< 7.6
- oracle•sun_zfs_storage_appliance_kit
8.8.6
- redhat•enterprise_linux_desktop
7.0
- redhat•enterprise_linux_eus
7.6 | 7.7
- redhat•enterprise_linux_server
7.0
- redhat•enterprise_linux_server_aus
7.6 | 7.7
- redhat•enterprise_linux_server_tus
7.6 | 7.7
- redhat•enterprise_linux_workstation
7.0
References (9)
- https://www.openssh.com/txt/release-7.6
- http://www.securityfocus.com/bid/101552
- https://github.com/openbsd/src/commit/a6981567e8e215acc1ef690c8dbb30f2d9b00a19
- https://security.gentoo.org/glsa/201801-05
- https://security.netapp.com/advisory/ntap-20180423-0004/
- https://access.redhat.com/errata/RHSA-2018:0980
- https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
- https://www.oracle.com/security-alerts/cpujan2020.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf