CVE-2017-15906

Summary

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.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• 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

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: yes
  • Technical Impact: partial

References

• 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

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