MEDIUM
CVE-2017-15906
CWE-732Published: October 26, 2017· Updated: Jun 17, 2026
5.3
CVSS v3.1
Official 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.
Technical Analysis
CVE-2017-15906 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected Vendors & Products
Debian1 product(s)
debian linux
netapp13 product(s)
active iq unified managercloud backupclustered data ontapdata ontap edgehci management nodeoncommand unified manager core packagesolidfiresteelstore cloud integrated storagestorage replication adapter for clustered data ontapvasa provider for clustered data ontapvirtual storage consolecn1610 firmware+1
openbsd1 product(s)
openssh
Oracle1 product(s)
sun zfs storage appliance kit
Red Hat6 product(s)
enterprise linux desktopenterprise linux eusenterprise linux serverenterprise linux server ausenterprise linux server tusenterprise linux workstation
Source: NVD CPE · 27 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (18)
→
http://www.securityfocus.com/bid/101552Third Party Advisory · VDB Entry
→
https://access.redhat.com/errata/RHSA-2018:0980Third Party Advisory
→
https://github.com/openbsd/src/commit/a6981567e8e215acc1ef690c8dbb30f2d9b00a19Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2018/09/msg00010.htmlMailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/201801-05Third Party Advisory
→
https://security.netapp.com/advisory/ntap-20180423-0004/Third Party Advisory
→
https://www.openssh.com/txt/release-7.6Release Notes · Vendor Advisory
→
https://www.oracle.com/security-alerts/cpujan2020.htmlThird Party Advisory
→
http://www.securityfocus.com/bid/101552Third Party Advisory · VDB Entry
→
https://access.redhat.com/errata/RHSA-2018:0980Third Party Advisory
→
https://github.com/openbsd/src/commit/a6981567e8e215acc1ef690c8dbb30f2d9b00a19Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2018/09/msg00010.htmlMailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/201801-05Third Party Advisory
Quick Facts
CVE IDCVE-2017-15906
CVSS Score5.3 / 10
SeverityMEDIUM
WeaknessCWE-732
CISA KEVNo
Affected5 vendor(s)
PublishedOct 26, 2017
Related CVEs (CWE-732)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2017-15906 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.