CVE-2018-20685
First published: Thu Jan 10 2019(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/openssh | <=1:7.4p1-10<=1:7.9p1-4<=1:7.4p1-10+deb9u4 | 1:7.9p1-5 1:7.4p1-10+deb9u5 |
| Openbsd Openssh | <=7.9 | |
| Winscp Winscp | <=5.13 | |
| Netapp Cloud Backup | ||
| Netapp Element Software | ||
| Netapp Ontap Select Deploy | ||
| Netapp Steelstore Cloud Integrated Storage | ||
| Netapp Storage Automation Store | ||
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Canonical Ubuntu Linux | =14.04 | |
| Canonical Ubuntu Linux | =16.04 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =18.10 | |
| Redhat Enterprise Linux | =7.0 | |
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux Eus | =8.1 | |
| Redhat Enterprise Linux Eus | =8.2 | |
| Redhat Enterprise Linux Eus | =8.4 | |
| Redhat Enterprise Linux Eus | =8.6 | |
| Redhat Enterprise Linux Server Aus | =8.2 | |
| Redhat Enterprise Linux Server Aus | =8.4 | |
| Redhat Enterprise Linux Server Aus | =8.6 | |
| Redhat Enterprise Linux Server Tus | =8.2 | |
| Redhat Enterprise Linux Server Tus | =8.4 | |
| Redhat Enterprise Linux Server Tus | =8.6 | |
| Oracle Solaris | =10 | |
| All of | ||
| Fujitsu M10-1 Firmware | <xcp2361 | |
| Fujitsu M10-1 | ||
| All of | ||
| Fujitsu M10-4 Firmware | <xcp2361 | |
| Fujitsu M10-4 | ||
| All of | ||
| Fujitsu M10-4s Firmware | <xcp2361 | |
| Fujitsu M10-4s | ||
| All of | ||
| Fujitsu M12-1 Firmware | <xcp2361 | |
| Fujitsu M12-1 | ||
| All of | ||
| Fujitsu M12-2 Firmware | <xcp2361 | |
| Fujitsu M12-2 | ||
| All of | ||
| Fujitsu M12-2s Firmware | <xcp2361 | |
| Fujitsu M12-2s | ||
| All of | ||
| Fujitsu M10-1 Firmware | <xcp3070 | |
| Fujitsu M10-1 | ||
| All of | ||
| Fujitsu M10-4 Firmware | <xcp3070 | |
| Fujitsu M10-4 | ||
| All of | ||
| Fujitsu M10-4s Firmware | <xcp3070 | |
| Fujitsu M10-4s | ||
| All of | ||
| Fujitsu M12-1 Firmware | <xcp3070 | |
| Fujitsu M12-1 | ||
| All of | ||
| Fujitsu M12-2 Firmware | <xcp3070 | |
| Fujitsu M12-2 | ||
| All of | ||
| Fujitsu M12-2s Firmware | <xcp3070 | |
| Fujitsu M12-2s | ||
| All of | ||
| Siemens Scalance X204rna Firmware | <3.2.7 | |
| Siemens Scalance X204rna | ||
| All of | ||
| Siemens Scalance X204rna Eec Firmware | <3.2.7 | |
| Siemens Scalance X204rna Eec | ||
| Fujitsu M10-1 Firmware | <xcp2361 | |
| Fujitsu M10-1 | ||
| Fujitsu M10-4 Firmware | <xcp2361 | |
| Fujitsu M10-4 | ||
| Fujitsu M10-4s Firmware | <xcp2361 | |
| Fujitsu M10-4s | ||
| Fujitsu M12-1 Firmware | <xcp2361 | |
| Fujitsu M12-1 | ||
| Fujitsu M12-2 Firmware | <xcp2361 | |
| Fujitsu M12-2 | ||
| Fujitsu M12-2s Firmware | <xcp2361 | |
| Fujitsu M12-2s | ||
| Fujitsu M10-1 Firmware | <xcp3070 | |
| Fujitsu M10-4 Firmware | <xcp3070 | |
| Fujitsu M10-4s Firmware | <xcp3070 | |
| Fujitsu M12-1 Firmware | <xcp3070 | |
| Fujitsu M12-2 Firmware | <xcp3070 | |
| Fujitsu M12-2s Firmware | <xcp3070 | |
| Siemens Scalance X204rna Firmware | <3.2.7 | |
| Siemens Scalance X204rna | ||
| Siemens Scalance X204rna Eec Firmware | <3.2.7 | |
| Siemens Scalance X204rna Eec | ||
| ubuntu/openssh | <1:7.6 | 1:7.6 |
| ubuntu/openssh | <1:7.7 | 1:7.7 |
| ubuntu/openssh | <1:7.9 | 1:7.9 |
| ubuntu/openssh | <1:7.9 | 1:7.9 |
| ubuntu/openssh | <1:7.9 | 1:7.9 |
| ubuntu/openssh | <1:7.9 | 1:7.9 |
| ubuntu/openssh | <1:7.9 | 1:7.9 |
| ubuntu/openssh | <1:7.9 | 1:7.9 |
| ubuntu/openssh | <1:7.9 | 1:7.9 |
| ubuntu/openssh | <1:7.9 | 1:7.9 |
| ubuntu/openssh | <1:7.9 | 1:7.9 |
| ubuntu/openssh | <1:7.9 | 1:7.9 |
| ubuntu/openssh | <1:7.9 | 1:7.9 |
| ubuntu/openssh | <1:6.6 | 1:6.6 |
| ubuntu/openssh | <1:7.9 | 1:7.9 |
| ubuntu/openssh | <1:7.2 | 1:7.2 |
| debian/openssh | 1:7.9p1-10+deb10u2 1:7.9p1-10+deb10u4 1:8.4p1-5+deb11u3 1:9.2p1-2+deb12u2 1:9.7p1-4 |
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Reference Links
- https://security-tracker.debian.org/tracker/CVE-2018-20685
- https://security-tracker.debian.org/tracker/CVE-2019-6109
- https://security-tracker.debian.org/tracker/CVE-2019-6110
- https://security-tracker.debian.org/tracker/CVE-2019-6111
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20685
- https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt
- https://github.com/openssh/openssh-portable/commit/6010c0303a422a9c5fa8860c061bf7105eb7f8b2
- https://salsa.debian.org/ssh-team/openssh/commit/7e34cc252e1c42369aaaa8e1c379699ccf8c9e0e
- https://bugs.debian.org/919101
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=919101
- http://www.securityfocus.com/bid/106531
- https://access.redhat.com/errata/RHSA-2019:3702
- 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://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://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/scp.c.diff?r1=1.197&r2=1.198&f=h
- https://launchpad.net/bugs/cve/CVE-2018-20685
- https://github.com/openssh/openssh-portable/commit/6010c030
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1665786
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1665785#c4
- https://access.redhat.com/security/cve/cve-2018-20685
- https://bugzilla.redhat.com/show_bug.cgi?id=1665785
- https://lists.mindrot.org/pipermail/openssh-unix-dev/2019-January/037459.html
- https://ubuntu.com/security/notices/USN-3885-1
- https://www.cve.org/CVERecord?id=CVE-2018-20685
- https://nvd.nist.gov/vuln/detail/CVE-2018-20685
- https://ubuntu.com/security/CVE-2018-20685
- collector/debian-bugs
- alias/CVE-2018-20685
- agent/author
- agent/remedy
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- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
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- source/Ubuntu
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- package-manager/debian
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- vendor/openbsd
- canonical/openbsd openssh
- version/openbsd openssh/7.9
- vendor/winscp
- canonical/winscp winscp
- version/winscp winscp/5.13
- vendor/netapp
- canonical/netapp cloud backup
- canonical/netapp element software
- canonical/netapp ontap select deploy
- canonical/netapp steelstore cloud integrated storage
- canonical/netapp storage automation store
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/8.0
- version/debian debian linux/9.0
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/14.04
- version/canonical ubuntu linux/16.04
- version/canonical ubuntu linux/18.04
- version/canonical ubuntu linux/18.10
- vendor/redhat
- canonical/redhat enterprise linux
- version/redhat enterprise linux/7.0
- version/redhat enterprise linux/8.0
- canonical/redhat enterprise linux eus
- version/redhat enterprise linux eus/8.1
- version/redhat enterprise linux eus/8.2
- version/redhat enterprise linux eus/8.4
- version/redhat enterprise linux eus/8.6
- canonical/redhat enterprise linux server aus
- version/redhat enterprise linux server aus/8.2
- version/redhat enterprise linux server aus/8.4
- version/redhat enterprise linux server aus/8.6
- canonical/redhat enterprise linux server tus
- version/redhat enterprise linux server tus/8.2
- version/redhat enterprise linux server tus/8.4
- version/redhat enterprise linux server tus/8.6
- vendor/oracle
- canonical/oracle solaris
- version/oracle solaris/10
- vendor/fujitsu
- canonical/fujitsu m10-1 firmware
- canonical/fujitsu m10-1
- canonical/fujitsu m10-4 firmware
- canonical/fujitsu m10-4
- canonical/fujitsu m10-4s firmware
- canonical/fujitsu m10-4s
- canonical/fujitsu m12-1 firmware
- canonical/fujitsu m12-1
- canonical/fujitsu m12-2 firmware
- canonical/fujitsu m12-2
- canonical/fujitsu m12-2s firmware
- canonical/fujitsu m12-2s
- vendor/siemens
- canonical/siemens scalance x204rna firmware
- canonical/siemens scalance x204rna
- canonical/siemens scalance x204rna eec firmware
- canonical/siemens scalance x204rna eec