In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass intended access restrictions via the filename of . or an empty filename. The impact is modifying the permissions of the target directory on the client side.Referenceshttps://www.debian.org/security/2019/dsa-4387https://usn.ubuntu.com/3885-1/https://github.com/openssh/openssh-portable/commit/6010c0303a422a9c5fa8860c061bf7105eb7f8b2https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/scp.c.diff?r1=1.197&r2=1.198&f=hhttps://security.netapp.com/advisory/ntap-20190215-0001/http://www.securityfocus.com/bid/106531https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txthttps://security.gentoo.org/glsa/201903-16https://lists.debian.org/debian-lts-announce/2019/03/msg00030.htmlhttps://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlhttps://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlhttps://access.redhat.com/errata/RHSA-2019:3702https://security.gentoo.org/glsa/202007-53https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
