VulnerabilityModified
CVE-2018-20685
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.
MEDIUM 5.3EPSS 3.68%
Does this matter?
Lower severity and a low EPSS score (3.68%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
- EPSS
- 3.68% probability · 89th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-863
- Affected
- openbsd/openssh · winscp/winscp · netapp/cloud backup · netapp/element software · netapp/ontap select deploy · netapp/steelstore cloud integrated storage · netapp/storage automation store · debian/debian linux · canonical/ubuntu linux · redhat/enterprise linux · redhat/enterprise linux eus · redhat/enterprise linux server aus · redhat/enterprise linux server tus · oracle/solaris · fujitsu/m10-1 firmware · fujitsu/m10-4 firmware · fujitsu/m10-4s firmware · fujitsu/m12-1 firmware · fujitsu/m12-2 firmware · fujitsu/m12-2s firmware · +2 more
- Source
- cve@mitre.org
References
- http://www.securityfocus.com/bid/106531Broken Link
- https://access.redhat.com/errata/RHSA-2019:3702Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdfPatch, Third Party Advisory
- https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/scp.c.diff?r1=1.197&r2=1.198&f=hPatch
- https://github.com/openssh/openssh-portable/commit/6010c0303a422a9c5fa8860c061bf7105eb7f8b2Patch
- https://lists.debian.org/debian-lts-announce/2019/03/msg00030.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201903-16Third Party Advisory
- https://security.gentoo.org/glsa/202007-53Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190215-0001/Third Party Advisory
- https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txtPatch, Third Party Advisory
- https://usn.ubuntu.com/3885-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4387Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlPatch, Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlPatch, Third Party Advisory
- http://www.securityfocus.com/bid/106531Broken Link
- https://access.redhat.com/errata/RHSA-2019:3702Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdfPatch, Third Party Advisory
- https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/scp.c.diff?r1=1.197&r2=1.198&f=hPatch
- https://github.com/openssh/openssh-portable/commit/6010c0303a422a9c5fa8860c061bf7105eb7f8b2Patch
- https://lists.debian.org/debian-lts-announce/2019/03/msg00030.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201903-16Third Party Advisory
- https://security.gentoo.org/glsa/202007-53Third Party Advisory
- https://security.netapp.com/advisory/ntap-20190215-0001/Third Party Advisory
- https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txtPatch, Third Party Advisory
- https://usn.ubuntu.com/3885-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4387Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.htmlPatch, Third Party Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.