CVE-2018-20685

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    CVE-2018-20685

    Published: 10 Jan 2019Last Modified: 8 Jul 2026

    Summary:

    Details: 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.

    References: http://www.securityfocus.com/bid/106531, https://access.redhat.com/errata/RHSA-2019:3702, https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html, https://security.gentoo.org/glsa/201903-16, https://security.gentoo.org/glsa/202007-53, https://security.netapp.com/advisory/ntap-20190215-0001/, https://usn.ubuntu.com/3885-1/, https://www.debian.org/security/2019/dsa-4387, https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf, https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/scp.c.diff?r1=1.197&r2=1.198&f=h, https://github.com/openssh/openssh-portable/commit/6010c0303a422a9c5fa8860c061bf7105eb7f8b2, https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt, https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html, https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    V_7_9_P1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High