Medium severity · published Oct 26, 2017
CVE-2017-15906
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
5.3
CVSS
3.4%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.4% · higher than 89% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AI
Active IQ Unified Manager · Netapp
All versions, or not specified · source: NVD
CB
Cloud Backup · Netapp
All versions, or not specified · source: NVD
CD
Clustered Data Ontap · Netapp
All versions, or not specified · source: NVD
CF
Cn1610 Firmware · Netapp
All versions, or not specified · source: NVD
DO
Data Ontap Edge · Netapp
All versions, or not specified · source: NVD
DL
Debian Linux · Debian
8.0 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0 · source: NVD
EL
Enterprise Linux Eus · Redhat
7.6; 7.7 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server Aus · Redhat
7.6; 7.7 · source: NVD
EL
Enterprise Linux Server Tus · Redhat
7.6; 7.7 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-15906
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-15906
Third Party Advisory
http://www.securityfocus.com/bid/101552
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:0980
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Third Party Advisory
https://github.com/openbsd/src/commit/a6981567e8e215acc1ef690c8dbb30f2d9b00a19
Mailing List
https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
Third Party Advisory
https://security.gentoo.org/glsa/201801-05
More from Debian Linux
10.0
CVE-2025-32433
Erlang/OTP SSH Vulnerable to Pre-Authentication RCE
10.0
CVE-2025-24201
Apple Multiple Products WebKit Out-of-Bounds Write Vulnerability
10.0
CVE-2021-44228
Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints
10.0
CVE-2015-3306
ProFTPD Improper Access Control Vulnerability
9.8
CVE-2026-24061
GNU InetUtils Argument Injection Vulnerability