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H A Dscp.1diff afde5170533a488a5404d1dba7650598aa41fc65 Thu Feb 21 23:45:54 CET 2019 Ed Maste <emaste@FreeBSD.org> scp: validate filenames provided by server against wildcard in client

OpenSSH-portable commits:

check in scp client that filenames sent during remote->local directory
copies satisfy the wildcard specified by the user.

This checking provides some protection against a malicious server
sending unexpected filenames, but it comes at a risk of rejecting wanted
files due to differences between client and server wildcard expansion rules.

For this reason, this also adds a new -T flag to disable the check.

reported by Harry Sintonen
fix approach suggested by markus@;
has been in snaps for ~1wk courtesy deraadt@

OpenBSD-Commit-ID: 00f44b50d2be8e321973f3c6d014260f8f7a8eda

Minor patch conflict (getopt) resolved.

Obtained from: OpenSSH-portable 391ffc4b9d31fa1f4ad566499fef9176ff8a07dc

scp: add -T to usage();

OpenBSD-Commit-ID: a7ae14d9436c64e1bd05022329187ea3a0ce1899

Obtained from: OpenSSH-portable 2c21b75a7be6ebdcbceaebb43157c48dbb36f3d8

PR: 234965
Approved by: des
MFC after: 3 days
Obtained from: OpenSSH-portable 391ffc4b9d, 2c21b75a7b
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D19076
H A Dscp.cdiff afde5170533a488a5404d1dba7650598aa41fc65 Thu Feb 21 23:45:54 CET 2019 Ed Maste <emaste@FreeBSD.org> scp: validate filenames provided by server against wildcard in client

OpenSSH-portable commits:

check in scp client that filenames sent during remote->local directory
copies satisfy the wildcard specified by the user.

This checking provides some protection against a malicious server
sending unexpected filenames, but it comes at a risk of rejecting wanted
files due to differences between client and server wildcard expansion rules.

For this reason, this also adds a new -T flag to disable the check.

reported by Harry Sintonen
fix approach suggested by markus@;
has been in snaps for ~1wk courtesy deraadt@

OpenBSD-Commit-ID: 00f44b50d2be8e321973f3c6d014260f8f7a8eda

Minor patch conflict (getopt) resolved.

Obtained from: OpenSSH-portable 391ffc4b9d31fa1f4ad566499fef9176ff8a07dc

scp: add -T to usage();

OpenBSD-Commit-ID: a7ae14d9436c64e1bd05022329187ea3a0ce1899

Obtained from: OpenSSH-portable 2c21b75a7be6ebdcbceaebb43157c48dbb36f3d8

PR: 234965
Approved by: des
MFC after: 3 days
Obtained from: OpenSSH-portable 391ffc4b9d, 2c21b75a7b
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D19076