CVE-2017-15906

moderate-risk
Published 2017-10-26

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.

Do I need to act?

~
3.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (20)

Affected Vendors

Oracle Debian Redhat Netapp Openbsd

References (18)

Third Party Advisory http://www.securityfocus.com/bid/101552
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:0980
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
Third Party Advisory https://security.netapp.com/advisory/ntap-20180423-0004/
Release Notes https://www.openssh.com/txt/release-7.6
Third Party Advisory https://www.oracle.com/security-alerts/cpujan2020.html
Third Party Advisory http://www.securityfocus.com/bid/101552
Third Party Advisory https://access.redhat.com/errata/RHSA-2018:0980
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
Third Party Advisory https://security.netapp.com/advisory/ntap-20180423-0004/
Release Notes https://www.openssh.com/txt/release-7.6
Third Party Advisory https://www.oracle.com/security-alerts/cpujan2020.html
48
/ 100
moderate-risk
Severity 21/34 · High
Exploitability 6/34 · Minimal
Exposure 21/34 · High