medium
5.3
CWE
732
Advisory Published
CVE Published
Updated

CVE-2017-15906

First published: Wed Oct 25 2017(Updated: )

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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/openssh<7.6
7.6
ubuntu/openssh<1:7.5
1:7.5
ubuntu/openssh<1:7.6
1:7.6
ubuntu/openssh<1:7.6
1:7.6
ubuntu/openssh<1:7.6
1:7.6
ubuntu/openssh<1:7.6
1:7.6
ubuntu/openssh<1:7.6
1:7.6
ubuntu/openssh<1:7.6
1:7.6
ubuntu/openssh<1:7.6
1:7.6
ubuntu/openssh<1:6.6
1:6.6
ubuntu/openssh<1:7.6
1:7.6
ubuntu/openssh<1:7.2
1:7.2
debian/openssh
1:8.4p1-5+deb11u3
1:9.2p1-2+deb12u2
1:9.2p1-2+deb12u3
1:9.8p1-2
OpenSSH<7.6
Oracle Storage Cloud Software Appliance=8.8.6
Debian Linux=8.0
NetApp Active IQ Unified Manager for VMware vSphere
NetApp Cloud Backup
IBM Data ONTAP
NetApp Data ONTAP
NetApp SolidFire & HCI Management Node
NetApp OnCommand Unified Manager for Windows
NetApp SolidFire & HCI Storage Node
NetApp SteelStore Cloud Integrated Storage
NetApp Storage Replication Adapter for Clustered Data ONTAP for VMware vSphere>=9.7
NetApp Storage Replication Adapter for Clustered Data ONTAP for VMware vSphere=9.6
NetApp VASA Provider>=6.0<=6.2
NetApp VASA Provider>=9.7
NetApp Virtual Storage Console for VMware vSphere>=9.7
NetApp Virtual Storage Console for VMware vSphere=9.6
All of
NetApp CN1610
NetApp CN1610 Firmware
Red Hat Enterprise Linux Desktop=7.0
Red Hat Enterprise Linux Server EUS=7.6
Red Hat Enterprise Linux Server EUS=7.7
Red Hat Enterprise Linux Server=7.0
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Server=7.7
Red Hat Enterprise Linux Server=7.6
Red Hat Enterprise Linux Server=7.7
Red Hat Enterprise Linux Workstation=7.0
NetApp CN1610
NetApp CN1610 Firmware

Remedy

https://github.com/openbsd/src/commit/a6981567e8e215acc1ef690c8dbb30f2d9b00a19

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2017-15906?

    CVE-2017-15906 has a medium severity rating, as it allows attackers to create zero-length files in readonly mode.

  • How do I fix CVE-2017-15906?

    To fix CVE-2017-15906, upgrade OpenSSH to version 7.6 or later.

  • What versions of OpenSSH are affected by CVE-2017-15906?

    OpenSSH versions before 7.6 are affected by CVE-2017-15906.

  • Can CVE-2017-15906 impact file integrity?

    Yes, CVE-2017-15906 can impact file integrity by allowing creation of zero-length files in readonly mode.

  • Is there a specific way to mitigate CVE-2017-15906?

    Mitigation of CVE-2017-15906 involves ensuring your OpenSSH installation is updated to version 7.6 or later.

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